madteg
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| posted on 28/3/08 at 10:02 PM |
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smoke on start up
got greyish smoke on start up for about 1 minute then it clears, what can it be its not valve stem oil seals.
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NS Dev
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| posted on 28/3/08 at 10:06 PM |
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grey is normally fuel, and if its going after one minute that sounds like warmup fuelling.
What ecu are you running I.e. is it your mapping, sounds like warmup correction is a bit ott.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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BenB
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| posted on 28/3/08 at 10:09 PM |
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1) ? steam due to a blown head gasket
2)Burning oil due to a worn piston rings
To check a leak down test and a coolant CO test should help...
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madteg
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| posted on 28/3/08 at 10:09 PM |
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Megasquirt
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madteg
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| posted on 28/3/08 at 10:15 PM |
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Not loosing any water or oil also had new head gasket
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trialsman
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| posted on 28/3/08 at 10:23 PM |
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Is the motor cold or warm on startup? If it is warm (like going out for a blat and stopping for lunch. Then starting the motor and getting smoke) it
sounds like valve guides. Russ
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madteg
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| posted on 28/3/08 at 10:28 PM |
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Only smokes from cold
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NS Dev
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| posted on 28/3/08 at 10:31 PM |
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back off the temp correction fuel map.
I've never mapped megasquirt stuff, but all the normal ecu's have a temp compensation map which adds a percentage fuel over the main
speed/load map depending on the coolant temp (no doubt teaching you to suck eggs here) but just try backing all the temp correction map off, and also
check that the coolant temp sensor is working ok.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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madteg
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| posted on 28/3/08 at 10:39 PM |
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Thanks will have a go, it does make sence as the colder it is the worse it is
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