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1998 v70R Awd fuel pump question UK

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
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paulharvey
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Year and Model: 1998 v70r awd
Location: Essex
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1998 v70R Awd fuel pump question UK

Post by paulharvey » Thu Dec 28, 2017 3:18 pm

I'm in the process of changing my 20yr old fuel pump in my 1998 v70r awd. I opted for the cut access after finding out how much hard work was involved.

I am fitting a 342 walbro pump and I now understand that it is not strait forward as I first thought. I have got the pump now back in the casing and ready to get back into the car however it doesn't have a fuel return inlet on the pump. To get round this I hear you can make a hole in the casing to let it drain.

Is this right? and has anyone got experience of the above and is there anything I have missed?

Thanks in advance.

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misha
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Re: Awd pump question

Post by misha » Thu Dec 28, 2017 3:35 pm

Fuel return line is on the fuel pump casing(assembly) not on the pump itself.
One port is feed line and the other is return line.
images.jpg
images.jpg (9.31 KiB) Viewed 362 times
'97 850 2.5 20v /fully equipped/ Motronic 4.4 / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

paulharvey
Posts: 3
Joined: Thu Dec 28, 2017 2:43 pm
Year and Model: 1998 v70r awd
Location: Essex
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Re: Awd pump question

Post by paulharvey » Thu Dec 28, 2017 10:54 pm

Thank you for you response. It is the pump I have more of a worry about. The pump on the right is the New one and doesn't have the green side inlet like the old one.

I have made a hole in the bottom of the casing as I have heard this will resolve the issue... is that correct?

Cheers Paul
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misha
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Year and Model: '97 850 2.5 20v
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Re: Awd pump question

Post by misha » Fri Dec 29, 2017 2:42 am

It seems that awd "R" cars have different fuel pump than fwd cars:
http://matthewsvolvosite.com/forums/vie ... hp?t=63178
'97 850 2.5 20v /fully equipped/ Motronic 4.4 / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

paulharvey
Posts: 3
Joined: Thu Dec 28, 2017 2:43 pm
Year and Model: 1998 v70r awd
Location: Essex
Has thanked: 1 time
Great Britain

Re: Awd pump question

Post by paulharvey » Fri Dec 29, 2017 3:06 am

Yes the pump that cam3 out was a walbro as they mention in the link you posted. There is no mention however of the green inlet on the side of the pump. It doesnt look like the New walbro they are putting in has that inlet also.

However did they need to cut holes in the outer casing to compensate?

Does that green inlet suck the return fuel line? Without it will it work correctly?

As mentioned not been strait forward but I have been taking pictures as I go and I hope to get it soldered back into the car later if rain holds off.

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misha
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Joined: Sun Dec 07, 2008 4:09 pm
Year and Model: '97 850 2.5 20v
Location: Serbia
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Re: Awd pump question

Post by misha » Fri Dec 29, 2017 3:57 am

I would wait for some member with an R,to see what they have to say about this.
These users thanked the author misha for the post:
paulharvey
'97 850 2.5 20v /fully equipped/ Motronic 4.4 / polar white wagon
'91 Citroen XM 2.0 SI /fully equipped/mandarine red metallic
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

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