User Tag List

+ Reply to Thread
Page 1 of 7 1 2 3 4 5 6 7 LastLast
Results 1 to 40 of 263

Thread: budget economy pinto, 32.6 mpg on sidedrafts, a pinto named dave

  1. #1
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    budget economy pinto, 32.6 mpg on sidedrafts, a pinto named dave

    i've just started a pinto for a very special customer

    the brief is for an engine with some poke, but is fuel efficent, and thus needs to be nice and flexable and pull tall gearing, its going to be an efi, but would work on a suitable modified carb.

    now the budget isnt very big so the money has to be spent wisely, we need the most bang (torque) for least bucks, i'dealy i would of built a big capacity engine but its staying a 2.0 for reasons i'll list later

    if you want economy you need an engine which has lots of torque low down, therefore you dont have to rev it,

    high compression helps, thermally the engine gets more efficient the higher the cr to a point, but high compression demands high octane fuel, in practise a high compression engine on dearer high octane fuel will be cheaper to run the extra efficieny offsets the extra fuel cost, and you have extra power if you want it, or you go low c/r worse economy and power and can run cheap fuel,
    this engine is going high c/r route

    more revs = more internal friction, i.e less economy
    so the cam will be a "caravan" cam, which is pretty mild but will give more grunt than the std ford cam and from very low revs, the mild cam will also keep to a minimum the fuel that goes in the inlet and straight out the exhaust without ever being burnt, again maximising economy

    cams and compression go very much together a 320 degree race cam and a 10.1 compression wont work well, on the other hand a 12.1 compression and a 270 degree cam is likely to lead to a dead engine, to get the most from the engine im looking at a 10.25:1 cr which is high for the 260 degree caravan cam, so i'm going to build the engine as smaller squish as possible ( squish is the gap between the top of the piston and the flat psrt of the cylinderhead chamber) this will reduce the chance of detonation

    the head is an injection one, which i will mildly port and install some oversize inlet valves, this will help the engine breath throughout the rev range, its not going to make masses of power so we dont need big exhausts.

    mgp is heavily dependant on driving style, but my target aim is an engine in a fully trimed car which will return 35mpg without driving at snails pace and will give 130-135bhp if asked

    DISCLAIMER, i have to say this is how im approaching this engine is build based on my experience, i never went to an engineering school or whatever to learn this stuff, so whilst it works for me i cannot say everything im doing is 100% right by the book, i am writing this as a "show whats involved guide", rather than a diffinative how to
    Last edited by Graham; 28-07-2008 at 10:08.

  2. #2
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    heres the base block




    it started out life a non injection std recon engine from ivor searles, fitted with a pair of 45's it would of had 110-120 it was put in a mk2 escort and did half a dozen sprints,

    at the end of the season the owners wanted more power, so i fitted a set of ARP big end bolts, doweled the flywheel to the crank, fitted a big valve head and FR33 and raise the compression to about 10.7:1 cr ( i cant remember exacty) power was now about 150bhp, and it did about 6 race meetings, after that the owner switched to a pegoet, so i built a peugoet engine for them and took the pinto in as part ex, much to my disbelief i couldnt sell it, and ended up selling the Alloy sump, BVH, dizzy, flywheel, cam and the bottom end was shoved under the bench where it sat for 5 years, infact the last year or so its been used to weigh down my pillar drill to stop the base rocking on the floor!



    sadly at some point a couple of the bores have got a bit damp and so it has a couple of rusty patches on them, but as there appears to be zero wear in them with a hone and re-ring they should be fine, the bottom end should still be virtually new so i'll be doing lots of meassuring as i strip it
    Last edited by Graham; 25-07-2008 at 02:11.

  3. #3
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    to get maximum squish, its important to get teh piston as high in the block as safely possible without getting it so highit hits the head at high revs, so its important to know exactly how far down it it


    cue dti to get piston at exactlythe top of the bore



    depth micrometer



    meassuring each piston heights in line with the gudgen pins, i check both ends because pistons arnt always perfectly square at the top, you have to meassue along the pin, if you meassure at 90 degrees to the pin the reading can be effected by the amount the piston "rocks" in the bore

    these pistons varied slightly in height from a highest of 0.012 to a lowest of 0.016, the difference can be down to the pistons themselves, but it can also because by slightly differenng con rod length or slight errors in crank pin grinding, in an all out race engine such a discrepancy woud be unwecome, but will be fine on this engine i dont need to use very last scrap of clearance and its not going to be reved tpo 8k, so i'll just work on the basis of the highest piston being 0.012 down the bores, as long as i dont have to change or machine cranks con rods etc as long as the pistons go back in the same bores, i can work out how much to skim off the block whilst its being honed and hopefully save rebuilding it then having to strip it again
    Last edited by Graham; 25-07-2008 at 02:42.

  4. The Following User Says Thank You to Graham For This Useful Post:


  5. #4
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    last job i did tonight was to check crankshaft end float, all cranks have to have a bit of end float, i.e the amount they can wander up and down the block, checking this can tell me if either the crank thrust surfaces or the thrust washers themselves are overly worn.



    to meassure thrust clearance DTI gauge is put on end of crank and the crank is lvered up and down the block.



    alternatively lever the crank to one end of the block and use a feeler gauge to meassure the gap between the thrust washers and the crank, i like the dti method better because its easier but either will do, the tolerance is 0.003-0.0011 the clearance came out 0.006 which is just fine

  6. #5
    Racer 4drmatt's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    Jun 2007
    Location
    Bedford
    Age
    37
    Posts
    2,079
    Thanks
    69
    Thanked 29 Times in 29 Posts

    Re: budget economy pinto with some power

    great thread

    look forward to reading this. I think it could be very useful to people too

  7. #6
    Racer Decade Plus User andypipe's Avatar
    My Race Car
    Join Date
    Jan 2003
    Location
    Harlow/Walthamstow
    Age
    54
    Posts
    3,104
    Thanks
    7
    Thanked 31 Times in 29 Posts

    Re: budget economy pinto with some power

    Mmmmmmmmmmmmmmmmmmmmm, does the special customer have a white MK2 escort by any chance?


    Rallying is a cure for Insommnia

    Click on the picture to find out how I,m doing

    www.snaglets.com

  8. #7
    Pit Crew Decade Plus User merp0's Avatar

    My 1st Project
    My 2nd Project
    My 3rd Project
    Join Date
    Jun 2007
    Location
    Chester, Cheshire, United Kingdom
    Posts
    1,284
    Thanks
    100
    Thanked 69 Times in 58 Posts

    Re: budget economy pinto with some power

    Yeah really interesting, do enjoy reading about stuff being done right.

    Sounds like this engine is for pulling a plough.

  9. #8
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    -------------------------------------------------------------------------
    Mmmmmmmmmmmmmmmmmmmmm, does the special customer have a white MK2 escort by any chance?
    nope

    Sounds like this engine is for pulling a plough.
    im not sure the owner has a plough, might have a tractor though............

    with fuel at £1.20 a litre and likely to rise, thats exactly what you want, it it doesnt mean it will be slow, just look at a modern diesel engine, lots of torque low down, means good performance and economy

  10. #9
    Pit Crew Decade Plus User merp0's Avatar

    My 1st Project
    My 2nd Project
    My 3rd Project
    Join Date
    Jun 2007
    Location
    Chester, Cheshire, United Kingdom
    Posts
    1,284
    Thanks
    100
    Thanked 69 Times in 58 Posts

    Re: budget economy pinto with some power

    The plough comment was directed more towards the mystery customer rather than the engine, I will read your updates with great interest.

  11. #10
    Decade Plus User
    Turbosport Subscriber
    Dave's Avatar

    Join Date
    Oct 2003
    Location
    Cheshire
    Posts
    19,588
    Thanks
    141
    Thanked 670 Times in 494 Posts

    Re: budget economy pinto with some power

    Intersting stuff

    Your workshp must be very similar to mine. Everything in my shed is covered in blue dust too.

  12. #11
    Pit Crew Decade Plus User bortaf's Avatar

    Join Date
    May 2004
    Location
    london
    Age
    54
    Posts
    1,021
    Thanks
    15
    Thanked 30 Times in 28 Posts

    Re: budget economy pinto with some power

    Deffo looking forward to this !

  13. #12
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power



    time to strip the bottom end, often overlooked is the timing belt crank pulley, timing belts tend to get much dirt and grit embedded in them, this becomes abrasive and over time wears the pulley, we found this by chance in about 1980, my then mentor george had built an engine, timed the cam in with DTI and degree wheels, spinning the engine over to recheck the figures the timing had moved! so he re did it and it had moved again, checking it another couple of times without actually adjusting he found the timing came up different every time, the culprit was a worn crank gear, point to note is they often dont look worn unless you take a really hard look, this one looks fine

    a couple of big end shells in perfect health



    pistons out, note how clean they are, i havnt cleaned them that how they came out.


    another piston/rod shot, again look how clean it is, no dirty staining around the ringlands so clearly the rings were sealing very well, and theres no wear to be found in the ring groves or other nasty damage to the skirt, to be honest this is no different to what i expected to find, knowing the history on this engine, this is why the engine isnt going to be a big bore, any gains from going big bore would take years and years to pay for them selves when theres no real reason not to reuse this pistons, apart from which unless its a race engine where ever last sngle cc really counts i hate seeing blocks having all there "lives" used up in one go just for a few more cc
    Last edited by Graham; 26-07-2008 at 10:21.

  14. The Following User Says Thank You to Graham For This Useful Post:


  15. #13
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    time to do some bore checking,

    the tool is a comparison gauge, it doesnt actually meassure a size, but its expanding foot meassures how much bore varies in size



    baiscally what you do is insert it in a bore, as you rock the gauge the needle on the DTI will lrise and fall, at the lowest reading you have the gauge dead square with the bore and can zero the gauge, sliding the gauge up and down the bore the needle will show any wear, or sometimes expansion in a bore where a casting is thin and has bowed out towards the water jacket, generally you look at the readings top middle and bottom og the bore, both inline with the crank shaft and at 90 degrees to it, when bores wear they do more so at the top where the rings press harder against them which produces a tapered bore, a bit of taper isnt all bad because rings can expand and contract so they will still seal, but bores also go out of round, the thrust of the piston means the rings press harder on the bores towards the side of the block than along the length, which is why you take measurement sat 90 degrees so you can tell oif bores are oval,

    these bores are just about spot on, i about the most ovality i meassured anywhere was 0.0005" and taper was under 0.001" top to bottom, these figures are very small no problems here 3 times more wouldnnt of been a problem, the block really does just need a hone


  16. #14
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    when this engine last ran several people included my self noticed just how quiet it was, idling you really couldnt hear it, quite a change from the mechanical clatter most pinto emit, my own RS engine sounds like a bag of nails compaired to this and that hasnt got anything wrong with it, so the piston to bore clearance would be an interesting check because it definatly didnt have ANY piston slap.

    i although wasnt bothered with the actual piston size which i already knew was + 0.5mm,
    i mic'd up the piston, contray to what it looks like pistons arent actually round, they are oval, this is so when they expand they can do so sideways, if they wernt like that you would have to have massive piston to bore clearances so that when they expanded they didnt sqwash themselves so hard into the bores the oil film on the bore would break down and you would get direct metal piston to bore contact which would be a very bad thing, such big clearances are fine on a race engine where piston slap is acceptable but in a production or road engine it isnt so the pistons are oval,

    this means the only place you should ever meassure a piston is across the bottom of the skirt



    by then putting the bore comparison gauge into the mic i could tell the piston to bore clearance, the answer was 0.001"


    1 thousanths of an inch is right on the bottom tolerance which is great as it means even after a hone the bores will still be well within spec, my book lists the piston to bore clearance for this engine as being 0.0009 - 0.002" by comparison the forged pistons in my race car have a bore clearance of 0.04, the forged pinto pistons i recently sold needed 0.0045-0.005 more than twice the clearance of a std engine.

  17. #15
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power

    i like this engine, its so nice i think im going to call it Dave

  18. #16
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    next on the list for dave was the crank, and i wasnt expecting any nasties especially after seeing the condition of the big ends, had it been worn, i would of considered offset grinding and stroking, but if the crank doesnt need any work its a very long term invetsment and money is better off saved or spent elsewhere



    there's certainly nothing even remotely worn about the main bearings, i will reuse them they are that good.




    crank looks good i will probably just give the journals a very light polish with some wet and dry and WD40, good going, especially as i've just remembered the car that had this engine was rolled at goodwood and ended up on its roof engine still running, it went right over and the engine ran for a good while still upside down ( so no oil pressure then) as the fuel leaked out all over the carbs.




    more meassuring, crank pins like bores do not wear evenly all the way round, so its imposrtant to meassure them at several places, i meaasued a maxiuim ovality of about 0.00025 which really on the edge of what i can meassure accurately.

    i have to say all of this is a big up for the engine reconditioners Ivor searles who rebuilt it in the first place


    same journal difference meeasuring position
    Last edited by Graham; 26-07-2008 at 11:43.

  19. #17
    World Champion Decade Plus User alladdin's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    May 2005
    Location
    s.wales
    Age
    60
    Posts
    9,200
    Thanks
    167
    Thanked 446 Times in 432 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    nice to see good parts being re used too many people think a used shell is scrap as soon as its split

  20. #18
    Mechanic longboy's Avatar

    My 1st Project
    Join Date
    Jun 2007
    Location
    notts
    Posts
    438
    Thanks
    12
    Thanked 5 Times in 5 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    love the measuring kit graham those comparison guages are the best, but didn't you set it up first with the mic?

  21. #19
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    nope, i just select the right length foot to get a bore reading, make sure the gauge is square to the bore, zero the gauge then just insert it in the mic that i meassure the piston with, that gives me piston to bore clearance which was what i was
    after, if you already have pistons and the block doesnt need boring you dont need to know the exact bore size,

    if i'd of bothered i could of opened the mic up until the comparison gauge had the same reading as when it was in the bore and got the bore size, or just added the difference shown on the comparison gauge to the mic to get the bore size but i already knew via a veriner meassuremnt when i dug the block out in the first place and the markings on top of the pistons the bores are + .5mm i wasnt interested in the EXACT size of it, but if i didnt have pistons i would of needed an exact size ( pinto pistons are graded, i.e each size comes in one of 5 slightly different sizes)

    the phrase more than one way to skin a cat comes to mind
    Last edited by Graham; 26-07-2008 at 14:24.

  22. #20
    Pole Position Decade Plus User david_white's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    Nov 2004
    Location
    Sunny Essex
    Age
    50
    Posts
    4,831
    Thanks
    100
    Thanked 57 Times in 57 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Top work Graham, looks like you know what you're doing


    Sierra cosworth turbo race car
    QMN saloon car championship

    RETRO Motorsport

  23. #21
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    i had a rummage around and found Daves oil pump, a quick strip should it to be in good condition, you can usually tell visually and this ones fine, your looking to see if the lobes on the rotors nice and smooth or slightly rough with nicks out of them where metalic bits have gone through the pump, the end plate was in good shape too if needs be a bit of wear in then can be removed by flating it down on a piece of glass with some grinding paste, or on a perfectly flat steel surface on some wet and dry paper on it, neither are nec here,
    visually im happy it can go straight back in the engine,



    but just to give you lot something else to look at i did check the clearance between the inner and outer rotors, it was 0.003 my haynes give a clearance tolerance of 0.002- 0.008 so its well within spec, and im glad to know my eyes are still working fine


  24. #22
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    next its time to turn my attension back to the block, before re-ringing an engine you need to have a block honed or deglazed as when an engine has been used the bores polish up or glaze, this surface is too smooth and shiney for new rings to seal on so its needs roughening up, this creates lots of little grooves in the cylinder wall which interect with each other, done right it looks like someones drawn lots of flatish X's on the bore these are know as cross hatches, these also retain some oil and lubricates the rings in use.

    in a engine with anything less than perfect bores its best one by a machine shop with a large honing machine, as that can restore slightly oval and tapered bores back to round and straight,

    hand held hones like this just follow the bore shape and thus wont correct any out of ovality



    the bores on this are good enough so i did it my self, infact i used two hones , one with medium stones to remove the surface rust spots and majority of the glaze and then i finer one to finish,

    too finer finsih and the rings wont seal too rough and they will wear out very fast

    you need a bit of rhyum here, with the drill on a slow speed work the hone up and down the bore i look at the bore sides through the hones legs whilst doing it so you can see both the cross hatch appearing and adjust the speed of either the drill or your up and down motion to get the hatching angles looking right, i also look to see the bore change colour as i do hone away, even through bores meassure ok, your find they are slightly iregular and you have to keep going for a while before the stones have removed metal from all of the bore.

    Last edited by Graham; 28-07-2008 at 09:55.

  25. #23
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    bores done,


    getting these out again






    i rechecked the piston to bore clearance, not suprisingly it had gone up, its now 0.00125-0.00150, still right in the tolerance of 0.0009- 0.002

  26. #24
    Pit Crew Decade Plus User Allerton Classics's Avatar

    Join Date
    Feb 2007
    Location
    Liverpool
    Posts
    1,546
    Thanks
    17
    Thanked 30 Times in 24 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Very nice work,

  27. #25
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    ring gaps next, they are both important and they are not all at the same time, the smaller the gap, the less gasses blow by the ring so better fo rpower, emissions etc, rings like most metal things expand with heat, so the ring gap shrinks when the engines hot, if it shrinks so much the ends of the rings touch the ring will break so small is preferable, too small is disaterous, so whilst it better not to have really big gaps these days most rings are pregapped so theres not a lot you can do about a big gap, i did one rebuild an engine that really needed a robore but my boss wouldnt pay for it ( it was his engine) by the time i'd honed the bores until they were in a reasonable shape, the ring gaps were absolutely enormous like about 4 or5 times the maximum allowable, that engine went like the clappers, never smoked and had good compressions so its not something to worry too much about as long as the gaps arent too small,





    as a double check on my bore meassuring i popped one of the OLD rings in the bore to check the ring gap, rule of thumb says a top compression ring on a road engine with a biggish bore will have a gap of 0.004 for every inch of bore dia, pinto bore being roughly 3.75 inch means 3.75 x 0.004 so i could expact a gap of at least 0.016 with a NEW ring

    the ring gap was actually 0.026" which seemed rather on the large size, until i had a quick look in the trusty haynes which said 0.015-0.023, so at only 0.003 outside the tolerance on an OLD ring i wasnt going to loose any sleep.


    a quick look at the aux shaft bearing shows all to be well, note the two small core plugs next to it, these block off oil galleries i knock these out so i can clean the galleries properly



    at the other end of the block there is a ball bearing in a hole, this blocks the other end of the main oil gallery



    the next picture doesnt need any words to say how you remove it




    and you can see i have no shortage or new ones to put back in when the time comes



    lastly for now i removed the spigot bearing from the end of the crank, it looked and felt fine, but theres no way to effectively clean it properly of the grit and dirt that would of accumulated in it, so for the sake of about £3 a new one is order of the day,




    sometimes its possible to removed them without a puller, you need to find something round which is an exact sliding fit into the spiggot, then pack the spiggot with as much grease as you can, then hammer your round bar into the spiggot hole and the hydralic action of the grease pushes the bearing out
    Last edited by Graham; 28-07-2008 at 10:45.

  28. #26
    Mechanic Doug@g19engineering's Avatar

    Join Date
    Mar 2006
    Location
    Nr Ipswich
    Posts
    729
    Thanks
    2
    Thanked 17 Times in 12 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Graham,

    With all this emphasis on economy i think the biggest gains will come from how the fuelling is managed.

    You say you are going EFI? In my opinion you should go for a cheap form of mappable management like MS. This will enable you to run closed loop and go as lean as 15-16:1 under idle and cruise conditions.

  29. #27
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    true, but you also have to meassure economy in cost of building the first place, the owner has a complete EFI set up so converting to a mappable ecu will add to the build cost, how long it it take to recover the added costs of buying fitting and mapping?

    it would also be interesting to see what can be achived using as much std ford kit as possible

    a ECU conversion can easily be done later on, but i think either way its going to be a lot more economical than the owners other pinto which has a mild cam and a pair of 40's hanging off the side of it.

    dont get me wrong, what your suggesting is how i would do it if it were my engine, infact we have spoken briefly about running it on a rechipped YB ecu, like clint did for esme.
    Last edited by Graham; 28-07-2008 at 11:28.

  30. #28
    Mechanic Doug@g19engineering's Avatar

    Join Date
    Mar 2006
    Location
    Nr Ipswich
    Posts
    729
    Thanks
    2
    Thanked 17 Times in 12 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    MS unit can be built for £150 or bough prebuilt for £250. Mapping is free if you do it yourself or the cost of a large cooked breakfast if they were local to me!

  31. #29
    Mechanic Doug@g19engineering's Avatar

    Join Date
    Mar 2006
    Location
    Nr Ipswich
    Posts
    729
    Thanks
    2
    Thanked 17 Times in 12 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Some quick maths on my notepad, i reckon that you would need to do about 6k miles before you broke even on the £250 pre built unit.

  32. #30
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    nice offer cant see it happening though the car its going in is several 100 miles away from ipswich, the owner deffo isnt going to solder up his own ecu or want modify/build injection looms so its likley to stay ford efi.

    --------------------------------------------------------------------------------

    Some quick maths on my notepad, i reckon that you would need to do about 6k miles before you broke even on the £250 pre built unit.
    mmm long term return, especially as it will probably be running a tad on the lean side with the efi in the first place
    Last edited by Graham; 28-07-2008 at 12:13.

  33. #31
    Pit Crew Turbosport Subscriber Stu.C's Avatar

    My 1st Project
    Join Date
    Oct 2006
    Location
    Lancashire
    Age
    52
    Posts
    1,785
    Thanks
    13
    Thanked 34 Times in 25 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Fascinating stuff here Graham Helps me understand more about where my limits are for taking stuff apart and being able to put them back together, as much as anything else.

    Out for a drive on a sunny spring day reminds me why I got this car

  34. #32
    World Champion Decade Plus User alladdin's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    May 2005
    Location
    s.wales
    Age
    60
    Posts
    9,200
    Thanks
    167
    Thanked 446 Times in 432 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    if he changed his mind i would solder for payment in apple juice

  35. #33
    Pit Crew Decade Plus User Group4_Mark2's Avatar

    Join Date
    Dec 2004
    Location
    Ireland
    Age
    53
    Posts
    1,781
    Thanks
    31
    Thanked 72 Times in 58 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Excellent write-up Graham,

    Nice to see how others do it. One question, how do you clean the block at home after honing to ensure that all grit has been removed?

    Tom

  36. #34
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    lots of detergent, then i wrap paper towel round a clenched fist and hone the bores with my hand! i keep going and change the paper until i get to the point thatthe paper no longer discoolours

  37. #35
    Pole Position Decade Plus User
    Turbosport Administrator
    Miniliteman's Avatar

    Join Date
    Feb 2004
    Location
    the Netherlands
    Posts
    4,875
    Thanks
    38
    Thanked 611 Times in 558 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Excellent info and pics Graham, you should write a book!!

  38. #36
    Spanner Monkey djaminhi's Avatar

    Join Date
    Feb 2006
    Location
    Trinidad West Indies
    Age
    54
    Posts
    172
    Thanks
    6
    Thanked 12 Times in 12 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Quote Originally Posted by Miniliteman View Post
    Excellent info and pics Graham, you should write a book!!
    Seriously Graham; how about condensing this into a nice sticky
    Regards,
    Kevin

  39. #37
    Pole Position Decade Plus User david_white's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    Nov 2004
    Location
    Sunny Essex
    Age
    50
    Posts
    4,831
    Thanks
    100
    Thanked 57 Times in 57 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Quote Originally Posted by Miniliteman View Post
    Excellent info and pics Graham, you should write a book!!
    I think if Graham and Gary wrote down all they know about engines and racecars it would be the difinitive bible, luckily they'd have to live for 2 or 3 hundred years to write it all down so instead they can get on with building our stuff and answering all the questions we mere mortals ask instead

    Keep at it Guru, great build and write up, the owner's gonna be one happy boy

    Sierra cosworth turbo race car
    QMN saloon car championship

    RETRO Motorsport

  40. #38
    Pole Position Decade Plus User david_white's Avatar

    My 1st Project
    My 2nd Project
    Join Date
    Nov 2004
    Location
    Sunny Essex
    Age
    50
    Posts
    4,831
    Thanks
    100
    Thanked 57 Times in 57 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Quote Originally Posted by graham bahr View Post
    lots of detergent, then i wrap paper towel round a clenched fist and hone the bores with my hand!
    I think fossie just did a sex wee

    Sierra cosworth turbo race car
    QMN saloon car championship

    RETRO Motorsport

  41. #39
    TURBOSPORT SPONSOR Turbosport Subscriber
    Turbosport Moderator
    Turbosport Administrator
    Graham's Avatar
    My Race Car
    My 1st Project
    Join Date
    Feb 2006
    Location
    Ely, Cambs
    Age
    56
    Posts
    25,099
    Thanks
    310
    Thanked 2,476 Times in 2,250 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    Quote Originally Posted by djaminhi View Post
    Seriously Graham; how about condensing this into a nice sticky
    its a sticky now, if these enough damand when its finished i can edit out all the banter and non essential stuff

  42. #40
    Racer Decade Plus User DarthVader's Avatar

    Join Date
    Jan 2004
    Location
    South Africa
    Age
    53
    Posts
    3,354
    Thanks
    20
    Thanked 37 Times in 35 Posts

    Re: budget economy pinto with some power, how to rebuild a pinto named Dave

    That would be excellant

+ Reply to Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts