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Posted

im in need of help my engine keeps cutting when i come to a point i need to stop (clutch down or in neutral) i tryed adjusting the idol screw but the slightest turn makes the engine rev around 1600rpm and when i turn it back it idols about 300rpm and stalls

 

any ideas ?

Posted
I had that on an old vw polo, it was to do with an earth to the engine or the carb :? can't quite remember, it was years ago.

 

cheers i'll have a look but i know its not the carb as i changed it when i did the engine swap and its auto choke with no electronics

Posted

pinto has 2 earth straps going to the engine one from bulkhead to the rear inlet manifold stud bulk head is a screw make sure its tight as i had one that had a habit of getting loose all the time the other earth is, looking from the front, down on the right hand side near the dizzy and connects direct to the battery with another lead coming out from the battery to the strut top area of the inner wing check that the leads are in good condition and connected firm

when you drive the car is there any hesitation in the engines performance apart from dieing on tick over

  • 4 weeks later...
Posted
Take out the two idle jets and give them a blow through. See if that helps as it sounds like there could be a bit of crud in there somewhere.

 

I can only only find the fuel air mixture screw and the idol screw I'm not 100% what carb I have on it it's a webber auto/twin choke

Posted
should be a standard 32/36 weber

 

Iv had a look and it's it's a webber 32/36 DGAV/393 with k&n filter if that helps any advice welcome I have Set the timing to tdc with the 8* turn back for the dizzy points set to .016 inch new condensor,dizzy cap and ht leads the earth wires almost new

 

any ideas ?

Posted
the anti stall valve may have a split in it

 

is there a site where I can get a diagram my haynes manual dosent have it in it also a setup of the carb in the car so I can see if the pipes are the rout way round

 

Some pix would be very helpfull of what goes where

Posted

I had the exact same problem when I was running a pinto on this carb, just crap in the jets, take the top of the carb off, don't have to take the whole thing off I think from memory and whip the jets out one at a time so you don't mix up what goes where and blast straight throgh them with carb cleaner and hey presto its back up again. Did you have slight backfire when you let off when driving too? All sorted for me after cleaning them out.

Posted
I had the exact same problem when I was running a pinto on this carb, just crap in the jets, take the top of the carb off, don't have to take the whole thing off I think from memory and whip the jets out one at a time so you don't mix up what goes where and blast straight throgh them with carb cleaner and hey presto its back up again. Did you have slight backfire when you let off when driving too? All sorted for me after cleaning them out.

 

it has just started to backfire when I let off so maby it is I'll see and let you know

 

Cheers

Posted
A couple peole mentioned an earth....but if the car is earthing down the clutch cable, and the engine doesnt have its own earth, it still shouldnt die, as the engine would remain running via the alternator.....

 

though I have had this problem on a transit, and at least this lead to the discovery that the charging system wasnt connected either :)

 

i have tryed the earth cable as i have said before i have changed a lot and checked a lot to figure it out im guna strip the carb next week and blast out the jets and clean out the carb and if that dont work iv got a 1.6 i could put in for a while :(

 

what do you mean by charging system and did the trany keep cutting ?

  • 2 weeks later...
Posted

Do you brake at the same time when your engine stalls????????????

If so, then your brake servo has died and causes your problem.

 

Easy to check, remove the vacuum hose from the servo and plug it.

Take it for a ride ( warning your brakes aint assisted now so you have to push the pedal harder to stop). If your stalling problems are gone now you know where your problem is...............

Posted
Do you brake at the same time when your engine stalls????????????

If so, then your brake servo has died and causes your problem.

 

Easy to check, remove the vacuum hose from the servo and plug it.

Take it for a ride ( warning your brakes aint assisted now so you have to push the pedal harder to stop). If your stalling problems are gone now you know where your problem is...............

 

urm the engine will stall if I down the clutch whilst still moving without touching the breaks could it still be the servo ?

 

I'll test it would it stall on the spot ? If it does then it can't be the servo can it.

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