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Radiator turbo oil lines

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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cjep
Posts: 80
Joined: 9 October 2011
Year and Model: 1998 C70 HPT
Location: Brisbane, Australia

Radiator turbo oil lines

Post by cjep »

Hi

I am replacing the radiator in my 98 C70 (I bought it damaged and am slowly fixing it up), and I have come to the turbo oil lines. I have never owned a turbo before (I have a n/a v70), and am not sure what these lines are for. I guess the turbo has its own little coolant/oil system? If so, how do I top it up after a radiator replacement? If not, what is in it? Just another trannie oil line?
1998 C70 HPT - Saffran - Auto - 150,000 km
If you are in Brisbane, Australia, PM me. I would love to meet other volvo enthusiasts!

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skloon
Posts: 526
Joined: 17 June 2010
Year and Model: 94 850 95 850 04 S60
Location: Edmonton AB
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Post by skloon »

what you are seeing are oil cooler lines, use the regular oil supply for the car no need to add anything else-I would use new clips with radiator clamps over them as a belt and suspenders method, if one of those comes loose bye bye oil

cjep
Posts: 80
Joined: 9 October 2011
Year and Model: 1998 C70 HPT
Location: Brisbane, Australia

Post by cjep »

Thanks.

These arent present on my N/A, so if I understand it correctly the engine oil is pumped through the turbo and then into the radiator on turbo models?
1998 C70 HPT - Saffran - Auto - 150,000 km
If you are in Brisbane, Australia, PM me. I would love to meet other volvo enthusiasts!

Ozark Lee
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Location: USA Midwest
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Post by Ozark Lee »

There is a secondary tank, inside of the radiator tank, for the oil cooler. It is isolated from the coolant so that the two don't mix.

The oil is pumped out of the bottom of the sump pan, not directly from the turbo.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

Poolio65
Posts: 4
Joined: 21 October 2012
Year and Model: 1998 xc70
Location: Northern Indiana

Post by Poolio65 »

I second the new clamp idea. I just finished a rebuild of a 98 v70xc and did NOT use new clamps. lets just say it takes mere seconds to empty the contents of my freshly filled crankcase. lesson learned

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