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Re: m30 question (archive)
[ Follow Ups ] [ 5-series (E28) Message Board ] [ Msg. Board FAQ ]
Posted by Dave - Vancouver, B.C. on January 27, 2002 at 20:47:57:

In Reply to: m30 question posted by andyman on January 27, 2002 at 18:23:21:

Sounds like a problem I had. Check the oil pressure switch on the back of the head on the passenger side. It's facing inward, next to a crossbrace. Mine had cracked (it's under rather high pressure) and was dripping oil onto the hot engine - thus the burning oil. Had it replaced and all was fine. If you have a Bentley manual it's shown in Fig.6-2 in Section 4, page 34. Hope that's your problem and not the head gasket. Good luck!


it burns oil... but not out of the tailpipe. Usually it doesn't burn until I'm stopped and the engine is shut off. Smoke comes up the passenger side firewall and out from around the hood there. I checked the valve cover gasket and it's solid, I cannot see any leaks from the top, and the oil/coolant look clean. 2 thoughts came to my mind now... is there a seal on the back of the head where the cam sits? or could this be a bad headgasket?

the car is an 88 735i (5 speed) with 145k miles on it. I know this isn't the e32 board, but you guys here seem to have more wisdom.

I'm familiar with m20 engines, but not m30... please help
thanks




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