Hi all I've got great spark and timing is bang on no fuel at the spark plugs so carbs must be at fault as they are second hand and I've never had the engine running with them.the spark plugs never get wet always dry there is fuel at the carbs and the bowls are full but no fuel getting through to plugs what ya reckon
look down the carbs with a mirror and work the throttle to see if the accel pumps are pumping fuel, if they are give it a few prods on the throttle and hit the key and it should fire up if everything else is correct
Or cheat and feed it some quickstart lol
Won't fix it but will confirm the spark is ok
Already tried easy start lol and no joy at all does not even sound like it's gonna fire I will look at the carbs with mirror thought maybe jets are blocked or something it's been 4 years in the garage
if it wont start on easy start then lack of fuel isnt your problem!Originally Posted by cookster
I really don't no what it can be then cause I got good spark all the way through the plugs and I got the timing bang on I would just toe it up the road but not in that postion at the mo
Also when ignition on 12 volts at the coil but when ya start cranking drops down to 8 volts don't no if that will be helping
coil voltage doesnt sound right, if its got a ballast resister you would expect about 9v at the coil cranking or not. f it hasnt you would see a higher voltage when not cranking, check what teh battery voltage drops to when you carnk, it should not drop down to 9v, if it does you either have bad connections or a knackered battery.
how do you know you have the timing spot on?
Have had the rocker off and made sure that no 1 rockers are knocking slightly and timed it up with the crank on the timing marks. It does not have a ballast resistor as far as I'm aware as straight 12 volt feed from the ignition gonna get my spare battery tomoro and put a 12 volt feed direct from battery.that way will not be breaking down when cranking will check battery voltage thanks for your help bud
ok, but even assuming you have actually got the rotor arm pointing at no1 spark plug lead and all the leads in the correct order, remembering the x/f has an odd 1243 firing order and the dizzy rotates anti clockwise, doesnt mean you have the timing bang on. the exact dizzy position plays a part, you could still be a good 15 degrees out either way!Have had the rocker off and made sure that no 1 rockers are knocking slightly and timed it up with the crank on the timing marks.
Yea got the firing order the right way anti clock wide and it pointing at no 1 when the timing mark is set if ya can think of a better way please let us no as would love to get it fired up to tomoro morning
at the point your at most people simply swing the dizzy,
but you can get it more accurate, this is assuming you have a normal dizzy with an advance mechanism.
with it no1 to fire put the crank mark at 12-14 degrees before tdc, not at tdc.
pull the lead from the coil out the dizzy cap and place it somewhere where it can send a spark to earth that you will see/hear. put the ignition on, try twisting the rotor arm anticlockwise, it should move a little, IF you have the base of the dizzy in the right spot you will get a spark out the coil as soon as the rotor turns, if not you will have to reposition the dizzy base, as i said you could be out in either direction
Will probably get the wife to crank it as I turn it and let ya no thanks
Right car is running now only problem is no 4 piston ring is stuck by the looks of it put oil down all the bores and I think that was the issue to begin with to be fair.hoping oil and wd40 will un seize it been sat for 4 years and ran fine before
running is good
TBH putting oil down the bores of an x/flow doesnt usually do anything as the oil will sit in the piston bowl
What would ya suggest Graham as I don't wanna be taking it to bits the other 3 of un stuck
just drive it, but unfortunatly often if rust has stuck a ring in a ring grove they do not free off on there own, only time will tell
Not in a postion at the moment Graham putting it all back together at the moment just wanted to make sure the engine was ok it's been in me garage so thought it be ok ill just keep building it and then take it for a drive
Posting Permissions
Reply With Quote
Bookmarks