Escort Sigma 1600 Race Car

[Roadsport]

Re: Escort Sigma 1600 Race Car

New cons arrived. Nothing special but looking good.The only obvious improvement is the use of proper size 3/8 bolts. I've always been a bit worried about the 5/16 I had on the previous rods.

[Tristan]

Re: Escort Sigma 1600 Race Car

No holding you back now Markus!

[Roadsport]

Re: Escort Sigma 1600 Race Car

Today was re assembly day. Two minor hickups. The new rods with the bigger 3/8" bolts were fauling the main ladder. Only minimally though and could be avoided by adjusting the ladder but I chose to take few swings with the file. The other one was the repaired cam. I got a new shim with the fix but I could get no valveclearance. So I now need to get me a new shim and try again tomorrow.



The fixed cam.

[Tristan]

Re: Escort Sigma 1600 Race Car

I've never seen a repaired cam before , have you seen it to be a success?

[Roadsport]

Re: Escort Sigma 1600 Race Car

Yes. On few Pintos. Theres two ways of repairing a cam. Slightly worn lobe can be regrind but youd end up with a smaller basic circle and need to adjust valve clearances. This may also need re hardening and straightening. More worn lobes need to be filled back up and grind to the correct profile. Usually they need to shave a bit off the basic circle too as the filled metal tends to pull back a bit and the step needs to be evend out. Mine had the latter treatment. The fellar even said the fixed lobe to be harder than the original. The trick of the trade is to do it right so that the filled metal will not come of.

[Graham]

Re: Escort Sigma 1600 Race Car

Rare occasion. Wrapping some new rubber on new wheels.

Niii iice!

my mate raced on my old set of these over the weekend, he found the same as i did, great grip in the dry, and they worked well in the wet, until the track had standing water on it, they cant cope with that, to cope with standing water the grooves in the tread need joining

[Roadsport]

Re: Escort Sigma 1600 Race Car

I can't say yet. I only broke them in and then the engine failed. But they started to grip quite fast. Left me with the sensation that these are proper tyres.

[Roadsport]

Re: Escort Sigma 1600 Race Car

A long day in grease pit. Now the valve clearance is set and the engine is fully assembled, timed and sitting in the bay. Still need to hook everything up tomorrow.

Since this was a solo act I bought me this engine tilting device. That was brilliant. A lot of help for 24€







Ari the belt does not seem too tight. A bit girly compared to yours though but then again im running a baby block engine.

[RWD fords rule]

Re: Escort Sigma 1600 Race Car

Best of Luck Markus, you are due some good luck

I would consider making a guard for the dry sump belt, just to stop stones and other crap from getting in there, too often I have heard of dry sump belts being pulled off by a stone or similar, makes no sense to me how dry sump kits do not come with a belt guard or at the very least a strong drive belt that is the same strength + size as a timing belt

Fitting a 25psi oil switch + water temp switch about 2*C above your normal coolant range and two red lights in the dash are a great way to keep an eye on things mid race, gauges are useful between races but those two sensors + lights are all you really need

[Roadsport]

Re: Escort Sigma 1600 Race Car

Now the 25psi oil switch is a good idea ! Didn't even know of such a thing. Alltough I still need to see the warning light when it lights up. Which I did not ... even though I have a huge led light in the dash... I have no words don't know how on earth could I have missed it. Maybe the shades I had on , maybe the low evening sun... Well I'm paying the price.

I have another warninglight in the dash for overheating, the ECU is supposed to light it up, but its not hooked up yet I keep putting it off as not so important feature for some reason...

I think I'll loose some lap time in the future looking at the oil pressure gauge all the time.

And I've really given thought to protecting the belt but I'm R E A L L Y carefull when it comes protecting/covering something up. If I do it I need to plan it out so that the shiled it self will not cause issues. It has happened to me before... Thing is if something gets in the cover it will never come out but jump around untill it surely snaps the belt. I'm thinking a alloy sheet from the spoiler to the x member... ... should prevent pebles and debree getting into the bay.

[RWD fords rule]

Re: Escort Sigma 1600 Race Car

I'm thinking a alloy sheet from the spoiler to the x member... ... should prevent pebles and debree getting into the bay.

Yes I believe this is what saves rallycars from loosing dry sump pump belts, the sump guard stops a lot of crap getting in there

On our old car we had the oil light positioned right on top of the dash with a bright light which literally could not be missed, if it is not in your line of sight you just won't see it when driving, anything below the top of the dash line in most cases won't be seen

[dudu53]

Re: Escort Sigma 1600 Race Car

Sorry why you don't have put the oilcooler twist of 90° with one pipe high and one pipe down? I think is better because it is not air bubbles

[Graham]

Re: Escort Sigma 1600 Race Car

in a dry sump set up the oil going through the cooler is always full of air because its scavenged not a pressure feed

[Roadsport]

Re: Escort Sigma 1600 Race Car

Honestly I've not given any thought to the position of the cooler other than in this position it gets a good cool air flow.

[Roadsport]

Re: Escort Sigma 1600 Race Car

Engine is now alla hooked up and waiting for some lubricants prior to start up. I also checked the rear axle oil. I had approx a tee spoon of metal flakes in the drain plug
I know a new set up will always shed some metal and I was not alarmed at all when it did it on its maiden voyage. But again? Am I in for some diff issues... ... Or does the ATB/torsen shed a bit more flakes due to the worm gears bedding them selves in.

Well I'm out of time. I can't get new part delivered if I needed some so I believe I'll just bite the bullet and see how it looks after the next event if I'm lucky enough to finish it.