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Mystery oil leak from cam cover

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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June
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Year and Model: 2004 S80 T6,1991 740
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Re: Mystery oil leak from cam cover

Post by June »

abscate wrote: 31 Jan 2018, 10:18 The back plug is for Aussie models - its the engine drain plug. The oil fill is on the bottom of course.
:lol:
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned

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rspi
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Post by rspi »

broken08 wrote: 29 Jan 2018, 17:04 1998 V70 awd. Did head gasket this year and have been noticing oil on top of the head/ cam cover and out the rear which drips on the turbo. The obvious thought is that I didn't do a good job sealing the cam cover, but the strange part is that the large, 2" circular plug seems to have oil on it always, making me think perhaps oil is leaking out of that and then running back down.
I will do a uv dye test after i clean it all up, but want to know if this is common. What is that plug for? Should I just smear some rtv around that?
thanks all.
What did you seal the cam cove with?
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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