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Oil cooler lines leak 98 Volvo v70xc Topic is solved

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.
1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70
scot850
Posts: 3918
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
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Re: Oil cooler lines leak 98 Volvo v70xc

Post by scot850 » Fri Apr 14, 2017 2:31 pm

Forgot to add, used Blue devil for a suspected rear main leak when running an 850 to California. Car had been sitting, but started leaking somewhere in Nevada after a hard drive. Filled with Blue Devil and by the time we got to California all was good and has not leaked again since. I look at the hope they help 'condition' an old seal, but don't really look on them to fix a pipe leak or 'O' ring type leak.

Also, do not break the oil cooler thermostat as they are now an obsolete part and only available used.

Neil.
1993 850 GLT -Sold
1998 V70 XC - Sold
2000 V70 R - still being an endless PITA
2006 XC70
1997 Volvo 850 SE NA - Went to niece in California
2000 V70 SE NA - New project and test bed

Switchemlee
Posts: 36
Joined: Sat May 21, 2016 8:19 pm
Year and Model: 1998 V70 XC awd
Location: Appleton wisconsin
United States of America

Re: Oil cooler lines leak 98 Volvo v70xc

Post by Switchemlee » Sat Apr 15, 2017 4:17 pm

Thanks for all the tips i found my lines were leaking at the crimped part of the hoses on the bottom crimpings. Not sure if just one or both because it got everywhere so im gonna replace both lines just to be safe and not have to go down there again. new o rings and new oil thermostat gasket.

Switchemlee
Posts: 36
Joined: Sat May 21, 2016 8:19 pm
Year and Model: 1998 V70 XC awd
Location: Appleton wisconsin
United States of America

Re: Oil cooler lines leak 98 Volvo v70xc

Post by Switchemlee » Sat Apr 15, 2017 4:23 pm

Also are the o rings on both sides of the lines? Or just at the oil thermostat?

erikv11
Posts: 7671
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850s, S/V70s, 06 S60
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Re: Oil cooler lines leak 98 Volvo v70xc

Post by erikv11 » Sat Apr 15, 2017 4:56 pm

Both ends have o-rings, of a sort. Each line has:

One standard o-ring at the thermostat.
One standard o-ring plus one seal plus that outer clip, at the radiator.

Check out Robert's video on replacing the lines, it probably shows what is on the ends.
'95 854 T5-R || m4.4 || 180k
'96 855 NA || 135k
'98 V70 GLT || T5 tune-injectors-turbo || 265k
'06 S60 R || 135k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 NA S70 174k

Switchemlee
Posts: 36
Joined: Sat May 21, 2016 8:19 pm
Year and Model: 1998 V70 XC awd
Location: Appleton wisconsin
United States of America

Re: Oil cooler lines leak 98 Volvo v70xc

Post by Switchemlee » Thu Apr 20, 2017 10:50 pm

How do you tighten those clamps down?

scot850
Posts: 3918
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Been thanked: 15 times
Canada

Re: Oil cooler lines leak 98 Volvo v70xc

Post by scot850 » Thu Apr 20, 2017 11:39 pm

Can you clarify what clamps you are asking about? At the thermostat end, the bolt in the middle of the pipes at the front of the engine block, or the cooler lines at the radiator?

If it is the first one, it is a Torx screw between the 2 pipe at the oil cooler end that holds the clamp bracket which holds the 2 pipes into the thermostat housing.

Neil.
1993 850 GLT -Sold
1998 V70 XC - Sold
2000 V70 R - still being an endless PITA
2006 XC70
1997 Volvo 850 SE NA - Went to niece in California
2000 V70 SE NA - New project and test bed

erikv11
Posts: 7671
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850s, S/V70s, 06 S60
Location: Iowa
Has thanked: 3 times
Been thanked: 3 times
United States of America

Re: Oil cooler lines leak 98 Volvo v70xc

Post by erikv11 » Fri Apr 21, 2017 1:06 pm

Where the cooler lines connect to the radiator, I use one thick zip tie around the clip as extra clamping insurance. Has been bombproof.
'95 854 T5-R || m4.4 || 180k
'96 855 NA || 135k
'98 V70 GLT || T5 tune-injectors-turbo || 265k
'06 S60 R || 135k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 NA S70 174k

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