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Hi all - a weird one...
My 8-valve turbo B-motor has just started to occasionally smoke on a warm startup - but only after I've been driving for a distance and then stop the car for 10 or 15 minutes (enough time to park, rip into a shop, buy something and come back out). If I restart it immediately after stopping, it's fine - no smoke. If I leave it longer than 20 minutes - again it's fine. It's fine the next day from cold. When I say "smoke" - it's enough to fill a car park. Damned embarrassing I can tell you. Once it's warmed up for 30 seconds or so again - all fine. Dang!
So - I've replaced my injectors because one was a known leaker. Sometimes it'd leak after shutdown, as proven by removing them when hot and placing them on the valve cover with a paper towel under all four. You could see the small pool of fuel gather after 10 minutes or so on the stoofed one. I thought that if it leaked when in place, it might let fuel drip down into the cylinder through a sometimes-open intake valve and strip the oil off the wall - initiating a smoke-fest on startup. Anyways - problem is still there after a new set of injectors went in. Geez it runs nicely now - super! Should have done that job ages ago...
No water in the oil, no oil in the water. All good there. Compression test not done, but engine runs beautifully and I am not down on power at all. I'll get off my backside and test it anyway.
The only thing I can think of is the oil level. The dip stick is a replacement one, so it may have the oil fill level wrongly marked. If it was a tad over-full, could this be a cause at all? I think (not certain but pretty convinced) that the problem is worse if I park on a slight down-hill gradient. Is that a clue he asks himself...?
Hmmm... pondering....
TIA
Chris
, Wed, 16 Feb 2011 06:08:04
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