FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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Why does black smoke pour from my zaust when goin fast around corners? The engines not over filled either and its really p*ssin me off. Its an c20xe corsa.
Any help needed.
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ed
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Registered: 10th Sep 03
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Try driving sensibly perhaps? But then that would be white smoke (oil)
Black smoke is petrol, which is odd because if it were overfueling it would do it all the time. Are you certain that it is black smoke?
If it is whit smoke then it is oil. The way to fix that is to drive slower, put on an 8v sump or to have fins welded into the sump to preven oil from sloshing around to one side of the sump when you corner hard...
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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will the 8 valve sump fit straight on?????
If it is oil burining what could be causing it? Valve stem seals?
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Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
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surly whiute smoke aint oil. i throght grey was oil. white is just condensation
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Corsa^Dan
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Registered: 4th Dec 02
Location: Sleaford, Lincolnshire
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grey/blue even
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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my last engine was burining oil and it seemed blue/grey. The oil does go down if driven hard, but it hasnt gone down lately cos ive bin drivin like a granny
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ed
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Registered: 10th Sep 03
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White smoke is oil (guess it does have a blue/grey tint to it), white steam is condensation. The 8v sump will go straight on, as the blocks are the same - i'm not sure what 8v sump should be used because there are several variations onf the 2.0 8v engine, and I would think they are all the same, but not 100%...
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ed
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Registered: 10th Sep 03
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If it were valve stem seals then it would be burnig oil all the time... But really, you gotta be driving seriously hard for it to burn oil when cornering 
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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not too hard mostly when accelerating off round abouts from bout half way round. I was thinkin it may be oil stayin in the top end of the engine. I hope the engine isnt fooked, wouldnt suprise me though it is from an astra gte, gettin pretty old know.
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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It's either surge, which is comone in these engine,
worn rings, or valve stem seals.
more likely to be the bottom two if the engine is vintage, as the oil surge problem only happens when you corner hard to the left (don't quote me)
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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Like J1400 said its oil surge oil inthe head gets into the breather system and causes smoke as it gets into the inlet and is burned, there is a simple mod you can do on the cam cover to prevent this, do a search on migweb for it
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James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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If you mean the swiss chease to the breather bit in the rocker cover that's to cure the kangeroo'ing I though??
To prevent surge you'd need to get more baffles in the sump, just live with it, it's cheaper to stick more oil in every so often.
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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nah ya make a c shaped piece of metal which bolt up to the cam cover breathers, it prevents any oil sloshing about in the head gettin up in the breathers, i will try find a pick
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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if tis white is water-head gasket, if its bluey its oil and black its petrol! oil dont burn white you numpty!
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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quote:
Originally posted by 1800ed
If it were valve stem seals then it would be burnig oil all the time... But really, you gotta be driving seriously hard for it to burn oil when cornering
not the case, it would burn oil on start up! al lthe time would mean they are totally majorly missing!
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and-m
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Registered: 5th May 02
Location: Liverpool. Drives. Skud vRS.
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The breather mod should stop the surge of oil into the throttle body and stop the kangarooing on the coast down the rev range.
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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Cheers for the help. It does kangeroo down the rev range, which i thought was the cams. Guess not so then.
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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I have been looking this up for you, drilling lots of holes in the cam cover inner section stops oil surging behind it when cornering and into the breathers which go to the throttle body/inlet manifold and get burnt, this driling also releases pressure build up in the cam cover and prevents the kangerroing ya get, you can also do the modification i explained with the plate to help even more
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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Cheers greasemonkey il try doin that on the next dry day???????
Can oil get through the holes? or is that ok?
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Greasemonkey
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Registered: 17th Apr 02
Location: Drives a Tractor
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DOnt drill holes in the cam cover dude, take the cover off and lookinside, there will be a plate screwed to the underside of the cam cover, drill holes in this so oil that gets above it can drain off and pressure dosnt build up
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FozzyGSI
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Registered: 29th Jan 04
Location: E.Port
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cheers mate
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