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Old 09-08-2002, 00:35   #1 (permalink)
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Black Smoke outta exhaust (LOTS OF IT)

Hi guys...

Got a quick question, if a car is blowing out smoke when accelerating hard (IE: when going up a hill) what does this mean???????????

Thanks




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Old 09-08-2002, 00:53   #2 (permalink)
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Is the car well and truely warmed up when it does this or only when cold?
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Old 09-08-2002, 01:12   #3 (permalink)
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Black smoke is usually indication of an engine running rich
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Old 09-08-2002, 04:32   #4 (permalink)
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foul plugs or leads.
most likely.
does it miss all the time?

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Old 09-08-2002, 07:58   #5 (permalink)
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Black Smoke means there is too much oil in the cylinders and is burning, white smoke is engine running too rich.

You may have too much oil in your cylinders because either your valve seals are leaking, your head gasket is blown and letting oil into the engine, or your piston rings are shot.
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Old 09-08-2002, 08:18   #6 (permalink)
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dude I believe you have it the wrong way around. White smoke is from oil if don't believe me poor some oil down the barrel of an old carbi motor.
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Old 09-08-2002, 15:43   #7 (permalink)
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white/blue is Oil, black is rich mixture

white/blue smoke is oil...and black smoke is caused from a rich mixture

replace your thermostat...sounds like your engine isnt warming up to optimal temperature which is causing the engine to "think" it needs to keep dumping a rich mixture into the chambers.

also check your air cleaner, if its dirty replace it
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Old 09-08-2002, 15:46   #8 (permalink)
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Yup, she's running too rich...

And as you know, I've had a LOT of experience with this lately! :dead:


Get someone to do a self test on the ecu, then also check plugs, leads, oxy sensor, thermostat, temp sensor, etc.


Good luck with it, mate!


Dave


P.S. If this only happens when it's cold, then don't worry about it, as they're meant to run a little rich when cold.
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Old 09-09-2002, 00:09   #9 (permalink)
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Do you have a rising rate fuel presure regulator? If the car is overfuelling, it will have a hard time leaning out enough, especially when accelerating hard.
As with most of the guys here, I say your car is over rich, but if its going through oil....well.
To add a bit of smoke to the debate (ha ha ha), white can also be water (as in blown head gasket).
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Old 09-09-2002, 00:37   #10 (permalink)
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Smile Thanks alot

Thank you all very much for the helpfull repsonses :)

I just receantly had the timing uped to 18 degress , because i too thought it was running rich, ill take it to the auto elecs so they can plug up the computer and find what ECU code is active.

The car always seems to run cold than most cars ive drives. I could of driven the car for 200 k's on a hot day , and the temp needle never goes over 1/4. I might just replace the thermo stat , and get a sparky to check or the sensors , hoses etc........ .

I remember you guys talking about a better type of thermo stat to use than the standard one you can buy... any body remeber .

Thank heaps guys

Tristan

PS. I does it all the time (blow out black smoke) i hope i dont have to rebuild the engine , as i was saving up for more important things, like a new T5 :)
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