Search found 6 matches

by Volvomort98
Sat Jul 11, 2020 6:28 pm
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Re: Hole in my valve cover (not PCV) and oil leak

Thanks for the close up picture. That’s exactly how mine looks except more oil. That hole is just plain weird! Haha.

Looks like there’s a little oil in there but if you have crankcase pressure it’s probably coming through the PCV hose.
by Volvomort98
Fri Jul 10, 2020 5:31 pm
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Re: Hole in my valve cover (not PCV) and oil leak

Cookeh wrote: Fri Jul 10, 2020 4:47 pm
To throw a spanner in the works, my 96 850 T5 has that hole.
Is something connected to the hole or is it left empty? It looks like they made the change somewhere in '93 or '94.
by Volvomort98
Fri Jul 10, 2020 4:24 pm
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Re: Hole in my valve cover (not PCV) and oil leak

You can "rent" a combustion gas tester for free from most auto parts stores. You just have to buy the test fluid. Detects the presence of combustion gases in the coolant. With these test kits a yes answer is unambiguous, and if there are combustion gases in the coolant then absolutely the head gask...
by Volvomort98
Fri Jul 10, 2020 9:40 am
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Re: Hole in my valve cover (not PCV) and oil leak

In addition to the valve seal leak at "the hole" and some seepage elsewhere, I'm concerned about a bad head gasket. I'm playing the "is it worth it game." This is a separate issue I've been experiencing but I've been loosing coolant through my reservoir cap. I've also gone through 3 radiators in the...
by Volvomort98
Thu Jul 09, 2020 11:55 am
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Re: Hole in my valve cover (not PCV) and oil leak

If it is truly leaking from there, you have correctly surmised that the reason would be the cam cover seal is breached somewhere around the circumference of the hole. It's unusual for that spot to leak, more commonly the oil comes from somewhere else (e.g. oil cap, hose to the top from PCV) and loo...
by Volvomort98
Wed Jul 08, 2020 8:13 pm
Forum: Volvo 850, S/V/C70, XC 1992-2000
Topic: Hole in my valve cover (not PCV) and oil leak
Replies: 20
Views: 620

Hole in my valve cover (not PCV) and oil leak

First time poster, long time reader. Thanks in advance. I've had the issue of oil under my spark plug cover. I've already replaced the PCV system and oil cap gasket so those common issues are not suspect. The oil is coming from the hole between #3 and #4. The background: I've been getting a misfire ...