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98 oil cooling lines leak. O ring or

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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h20ham
Posts: 82
Joined: 23 February 2013
Year and Model: 1998 xc
Location: bc
Been thanked: 1 time

98 oil cooling lines leak. O ring or

Post by h20ham »

Hello
Should I just go for O rings
I know it's at the Union, and I have a tough time accepting it is the hoses end. I would suspect the rad 1st.
But more wear would come from the O ring?
Any thoughts
68 125 b18 4 speed
72 164e b30 5 speed
79 242 16v 5 speed
84 744 T 5 speed
86 745 T 5 speed
88 765 T aw71
91 745 T 5 speed
95 965 T shift controller in progress
05 xc90 rough idle

h20ham
Posts: 82
Joined: 23 February 2013
Year and Model: 1998 xc
Location: bc
Been thanked: 1 time

Post by h20ham »

And further, we have a Oil smell in the cabin.
So between whatever possibilities from rear main seals, to oil cooler seals. I guess they all get tired.
This beauty has 321,000km
But is in overall good condition.
Just replaced the heater core which I know can smell a bit until it is up to temp. It's been a week now!
And outside of a ok Vlave Stem Seal job and the listed other possibilities
Anything I missed
68 125 b18 4 speed
72 164e b30 5 speed
79 242 16v 5 speed
84 744 T 5 speed
86 745 T 5 speed
88 765 T aw71
91 745 T 5 speed
95 965 T shift controller in progress
05 xc90 rough idle

scot850
Posts: 14899
Joined: 5 April 2010
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 1853 times
Been thanked: 1714 times

Post by scot850 »

Have you replaced the oil cooler "o" rings at all? I recommend only using the OE parts and using new clips and a little Vaseline on the new seals to make them go back in without damaging them. Make sure you have cleaned the radiator cooler ports carefully and make sure there are no rust spots to catch and damage the seals.

The cooler lines are not leaking at the swage point where the rubber line starts?

Have you done the PCV system and PTC nipple clean out?

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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