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1995 850 Converting to awd

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

This topic is in the MVS Volvo Repair Database » 850 AWD DIY Conversion?
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JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Volvo Repair Database 1995 850 Converting to awd

Post by JonVal »

Hi
I am converting my 850 95 mod to awd . Have trouble to find out where the fuel return line is connected to the fuel tank. Does any one have a picture or something that could help ?? AWD is from a 98 mod v70.
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IMG_1179.jpg
Last edited by JonVal on 25 Jan 2015, 11:36, edited 1 time in total.

Ozark Lee
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Post by Ozark Lee »

The fuel return line is on the top of the fuel pump housing. There are two connectors there, one is fuel supply and the other is fuel return.

...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

JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Post by JonVal »

Hi Lee
Thanks for replying . I must be short of parts or I must have connected some hoses wrong. Added a picture
of the fuel tank . could you mark out where the return line should be connected to the tank ?

Jon

scot850
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Post by scot850 »

Quick question as I am curious, having owned a couple of AWD P80 Volvos, are all the required mounting points available on the frame for an AWD set up? In North America, the AWD 850 didn't arrive until 97 model year (late 1996), so I'm not sure if this will fit without major modifications to the underside of the car. Is there mountings for the center bearing for the prop-shaft in the middle of the car? The parking brakes cables are also different, I also believe the rear under body is different to allow the rear sub-frame and suspension to mount, and there is a mounting point for the front bush on the viscous coupling housing.

I certainly admire your enthusiasm to make this work.

I will be pulling the whole sub-frame from my 2000 V70R in the next couple of months to replace it due to corrosion cracks in the sub-frame just in-front of the rear-most sub-frame mounting bolt. I have taken a bunch of pictures to eventually write up a 'how-to' but had to re-assemble as the fuel tank was full and needed to run the level down.

Keep us updated on your progress, and good luck!

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

JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Post by JonVal »

scot850 wrote:Quick question as I am curious, having owned a couple of AWD P80 Volvos, are all the required mounting points available on the frame for an AWD set up? In North America, the AWD 850 didn't arrive until 97 model year (late 1996), so I'm not sure if this will fit without major modifications to the underside of the car. Is there mountings for the center bearing for the prop-shaft in the middle of the car? The parking brakes cables are also different, I also believe the rear under body is different to allow the rear sub-frame and suspension to mount, and there is a mounting point for the front bush on the viscous coupling housing.

I certainly admire your enthusiasm to make this work.

I will be pulling the whole sub-frame from my 2000 V70R in the next couple of months to replace it due to corrosion cracks in the sub-frame just in-front of the rear-most sub-frame mounting bolt. I have taken a bunch of pictures to eventually write up a 'how-to' but had to re-assemble as the fuel tank was full and needed to run the level down.

Keep us updated on your progress, and good luck!

Neil.
Hi Neil
Yes everything fits except the brackets for the rear suspension ( need to weld them in), a reinforced bracket that goes under the backseat pillow. Maybe the heatshield in the tunnel where the exhaust goes under the car...
Rear suspension, i used one allen bolt in the same hole as the spring was mounted on each side, they fit exactly in a hole on the rear suspension. Jack it up and you have the spots for the barckets you need to weld in . Front suspension is bolt on, need to swap the subframe to . But everything is bolt on :)

I ll try to get some pics posted soon ...

Jon

Ozark Lee
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Post by Ozark Lee »

Ahh, now that you added the pictures I see that you were actually asking about the XC tank, not the 850 tank. My guess is the return line is the second line on the transfer pump which is on the left hand side (right hand side in the picture) of the XC tank. The second line there wouldn't really have any other purpose.

...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

JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Post by JonVal »

Ozark Lee wrote:Ahh, now that you added the pictures I see that you were actually asking about the XC tank, not the 850 tank. My guess is the return line is the second line on the transfer pump which is on the left hand side (right hand side in the picture) of the XC tank. The second line there wouldn't really have any other purpose.

...Lee
yes , but i am using a tank from a v70 awd 98 mod, it is pretty much bolt on on my 95 mod 850.
only fuel line i have with the v70 tank is a dobbel hose that goes into a valve just before it is connected to the fuel pipes on the engine, and i can t seem to find any other connections on the tank.Image
Image
it is the valve on the pics , two fuel hoses in and one out to the fuelrail. But there is also to hoses on the top of the valve..... looks like vacum hoses to me :?:
can t find any better pic then this of the valve Image the biggest hose with the clamp on, is that the fuel return :?:

Jon

jimmy57
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Post by jimmy57 »

At the fuel tank the return line is the one that can be traced to run across tank to the driver's side sender unit. The return line flow goes there to run through the ejector pump and then a line from the driver's side goes over to the RH side sender/pump.

JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Post by JonVal »

jimmy57 wrote:At the fuel tank the return line is the one that can be traced to run across tank to the driver's side sender unit. The return line flow goes there to run through the ejector pump and then a line from the driver's side goes over to the RH side sender/pump.
Hi Jimmy, thank you for replying :)
ok, but where is it connected to the fuelrail, i don t have any connections left on the tank

JonVal
Posts: 10
Joined: 25 January 2015
Year and Model: 850 t5 1995
Location: Norway

Post by JonVal »

hi
can anyone tell me where those two hoses from the fuel pressure reg. are connected ?
Attachments
98 mod. v70 awd
98 mod. v70 awd
Screenshot_1.png (419.49 KiB) Viewed 3811 times

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