Where Do You Think The Oil Is Coming From?

coollx · 01-10-2008, 04:14 PM

I'm just getting organized to perform my first valve adjustment and oil change. The car is a 1985 Targa that is off the road so the engine is not being started but yet I have an oil leak under the engine on the driver's side.

The oil is accumulating on the bottom edge of the lower valve cover then dripping on the floor. Since this 911 is totally new to me I thought I'd ask the experienced members here what the likely places the oil is coming from keeping in mind the oil level is full and the engine is not being run. It probably leaks a half dollar size amount of oil each day.

Could it be from the upper valve cover on the driver's side?

Or something higher on that side of the engine that pools oil so it can leak past a bad seal or gasket?

Any suggestions or thoughts are appreciated.

Dom

KTL · 01-10-2008, 04:27 PM

Many sources for oil leaks down there. A few pictures would help alot.

My guesses:

1. Valve cover gasket
2. Valve cover nut- leaks thru nylon locking ring.
3. Warped valve cover- quite common, even with the ribbed 930 cover
4. Oil return tube seal
5. Rocker arm shaft

Post a few pictures around the area and it's easier for people to give a recommendation. Helps too to have the suspect surrounding area well cleaned.

Congrats on the new car. They're great cars and you'll find PLENTY of good information on this forum.