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DISCUSSION => Engine + Driveline => Topic started by: JoeDellio on April 18, 2009, 01:47:19 PM

Title: Oil Cap Leaking. Replaced Cap and Its Still Leaking.
Post by: JoeDellio on April 18, 2009, 01:47:19 PM

1995 318i M42

I noticed oil seeping out of the cap and down the valve cover. I replaced the cap and it still leaks. It doesnt leak at idle, but when Im driving it.

Could this be a result of too much oil? My car calls for 4.5 quarts, but it takes 5.5 to be happy on the dipstick. The year M42 I have the dipstick was made an inch longer by BMW to be routed different. I dont know if this is significant, it should still read the same.

Title: Oil Cap Leaking. Replaced Cap and Its Still Leaking.
Post by: carl6405 on April 18, 2009, 07:36:48 PM

Is it possible that you may have to much oil in the motor?

Title: Oil Cap Leaking. Replaced Cap and Its Still Leaking.
Post by: tjts1 on April 18, 2009, 10:39:40 PM

No. The crankcase ventilation hose coming off the valve cover must be clogged.

Title: Oil Cap Leaking. Replaced Cap and Its Still Leaking.
Post by: JoeDellio on April 18, 2009, 11:49:10 PM

Quote from: tjts1;70365

No. The crankcase ventilation hose coming off the valve cover must be clogged.

Thats good to know. My crankcase ventilator took a shit on me last week, making my car idle EXTREMELY rough and whine super loud, so I capped off the ventilator and put a breather on the hose. It must not be venting enough, I might run an open hose for a day, my pelican order of 2 rear shocks and the CCV is gonna be here Monday. Thanks for pointing that out.