lewis
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 posted on 30/10/10 at 02:57 PM |
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Pinto firing on 3
My pinto 2.0l has started running lumpy after a bit of investigation it seems the aft Most cylinder exhaust pipe is cold,I have swapped the spark plug
with another/swapped leads but nothing,there is fuel and I can confirm there is a spark,any ideas??
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CRAIGR
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| posted on 30/10/10 at 03:03 PM |
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Have known slippers to jump off the valves before so the valves don't open
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philhoward
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| posted on 30/10/10 at 03:09 PM |
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Air leak on inlet manifold. Put a piece of hose pipe to your ear and listen for any hissing noise.
This happen to me and after hours of frustation I found that the gasket had blown a hole in it
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RichardK
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| posted on 30/10/10 at 03:11 PM |
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Think one of the first tests that has got to be a compression test.Cheers Rich
Gallery updated 11/01/2011
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lewis
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| posted on 30/10/10 at 03:36 PM |
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Thanks guys I'll have a look at those bits and report back.
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britishtrident
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| posted on 30/10/10 at 04:35 PM |
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Compression test (or even better cylinder leak down test ) & check valve clearances.
Dizzie Cap ?
And if you are on a points dizzy check the points gap on each lobe of the dizzie cam.
[Edited on 30/10/10 by britishtrident]
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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jacko
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| posted on 30/10/10 at 05:43 PM |
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Crack in dizzy cap
Go and start it in the dark to look for electric sparks
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escary
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| posted on 31/10/10 at 07:13 AM |
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Start with the basics
Air, fuel, spark
I'd be tempted to check the valve operation before a compression test, inlet not opening would show big drop on a compression test, but no
difference on a leakage test.
Hope it's a simple repair, saves the hassle of head off etc
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chris666
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| posted on 31/10/10 at 07:35 PM |
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Check valve clearences.pintos suffer from cam wear.also check compression as above.
Chris
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greggors84
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| posted on 31/10/10 at 09:36 PM |
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It happened on the engine a while ago Lewis after a period of not being used. It looked like a weak spark on #4 cylinder.
A good clean up of the plugs and a good run got it running well again.
Might be worth trying some new plugs as it as soon as the cylinder wasn't firing properly it fouled up the plug. Took a while to get it clean
enough.
Chris
The Magnificent 7!
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lewis
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| posted on 31/10/10 at 09:51 PM |
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Thanks for the info guys and Chris thanks for the history I'll bung a new set of plugs in as soon as my hand heals, note to self don't
hold the manifold when the engine is running
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greggors84
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| posted on 31/10/10 at 10:08 PM |
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Whoops! Good way to check is lick your finger and quickly touch the headers, if you get a hiss then you know its hot! As long as its not glowing and
you touch it for too long you will get away with it.
Chris
The Magnificent 7!
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lewis
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| posted on 1/11/10 at 09:49 PM |
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Quick update for anyone that's interested lol. All plugs replaced and running great now thanks all for the replys.
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