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Old 01-22-2013, 09:34 PM
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gsxr gsxr is offline
Join Date: Aug 2001
Location: USA
Posts: 8,033
It's not the lifters. I too was thinking the IP was out of phase, but it sounds like your cam, IP, and crank are all in sync.

Did you check for plugged exhaust? Is the turbo impeller spinning with the engine at idle, and does it turn easily & smoothly when you turn it with you fingers (engine off)? Black smoke indicates either too much fuel or a major intake air restriction. There isn't much to go wrong on the bottom end. I wouldn't expect a compression test to tell you much unless a cylinder was dead. How hot is the engine getting, btw? Are you sure that's not just due to an air pocket? These cooling systems are a PITA to burp.

Dave M.
Boise, ID

1997 E420 - 155kmi (Bugeyes)
1994 E420 - 145kmi (Blondie)
1993 500E - 193kmi (Lollipop)
1992 400E - 189kmi (Stinky Dirty)
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