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Where can I get an in-line fuel line check valve? 850 1996

posted by  someone claiming to be Hugh on  Wed Apr 6 13:57 CST 2011 [RELATED]

Hello All,

Although I have two '96 850 wagons, my question has to do with my '99 XC. My hope is by posting it here, some one might have the answer I'm to the above question.

For several months, I've had difficulty starting my '99 XC. My independent mechanic tells me the problem is due to the fact that the check valve built into the fuel pump is no longer working. Specifically, this valve is supposed to close when you turn off the engine, thereby maintaining pressure in the fuel line, so when you turn the key, the engine will start immediately.

To avoid the cost of replacing the fuel pump, he has recommended I find an in-line check valve to install (he doesn't have one, nor has access to one). The fuel line has an inside diameter of 6mm and an outside diameter of 8mm.

Can any one tell me where I could purchase an in-line check valve, preferably made out of metal and not plastic that I could install in the fuel line of my '99 XC (which is a turbo)?

Thanks to all who reply.

Hugh








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    Where can I get an in-line fuel line check valve? 850 1996

    posted by  jadnhm on  Thu Apr 7 06:06 CST 2011
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Tue May 22 18:03 CST 2012
    [RELATED]

    A search of this forum probably would have turned this up as I've posted it a few times before.

    You can buy the inline independent check valves for the 7xx at FCP:
    http://www.fcpgroton.com/product-exec/product_id/5150/nm/Volvo_740_8_Valve_Fuel_Pump_Check_Valve_1989_1992_Bosch_/category_id/149

    It looks like the exact same part was used on the 9xx until MY 1994.

    It will take some creative rigging because the fuel lines on your 850 are vinyl fuel lines and the check valve will need flare nut connections on metal line. It can definitely be done though.

    --
    1998 V70 AWD->FWD->AWD Turbo 215k+








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      Where can I get an in-line fuel line check valve? 850 1999

      posted by  someone claiming to be Hugh on  Wed Apr 13 16:17 CST 2011 [RELATED]

      Jadnhm

      Thank you for your reply. I went to FCP's web site and looked at the check valve. The clerk is going to pull one off the shelf and measure its internal and exterior diameters of both openings of the check valve and get back to me.

      Prior to contacting FCP, I put a call into iPd to see if it sold a universal check valve. The clerk told me to be careful about installing a check valve so as to avoid a leak. He said the fuel line on the 1999 Cross Country has a psi of about 80 lbs. Putting simple hose clamps on each side of the in line check vavle many not be enough to withstand the pressure. In the process of fixing one problem, I may create another: a fuel leak.

      The check valve you referred to has different sized openings. Exactly what type of clamp or coupling, if you know, would I have to use to makse sure this in line filter doesn't leak? I noticed this in-line filter was designed to screw directly into the fuel pump, and has a threated end which I assume screws directly into a fuel line.

      Jadnhm, thanks for your help.

      Hugh








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        Where can I get an in-line fuel line check valve? 850 1999

        posted by  jadnhm on  Thu Apr 14 06:39 CST 2011
        Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
        last visit: Tue May 22 18:03 CST 2012
        [RELATED]

        You will indeed need to be careful installing this. You can't treat vinyl fuel line the way you did on the old rubber fuel line.

        You will do well to order the check valve and take it in to your local parts counter to have the connections sorted out.

        You will have a setup that will go something like this

        vinyl fuel line (from tank pump)
        vinyl to steel line fitting adapter
        steel line
        flare nut
        check valve in
        check valve out
        flare nut
        steel line
        steel line to vinyl adapter
        vinyl fuel line (to pressure regulator)


        Papco has some good products for dealing with this type of thing.
        http://www.hpaulin.com/Catalogue/Dealer_2008_Price_List.pdf

        page 53 and 54 of the catalog above have the fuel line repair products.

        Vinyl to steel line requires a special shape on the end of the steel line (which you will have to buy pre-made - I know of no way to make this at home) and an oetiker clamp to hold it together, or a premade adapter where the vinyl line is already stuck (vulcanized?) to the steel line.

        To go from the steel line to the threaded fitting on the check valve you will need to put a flare on the steel line and use a flare nut that fits the threaded fitting on the check valve.

        If you don't have any experience with vinyl fuel line, a good parts counter should be able to sort you out.

        Good luck.
        --
        1998 V70 AWD->FWD->AWD Turbo 215k+








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          Where can I get an in-line fuel line check valve? 850 1999

          posted by  someone claiming to be Hugh on  Thu Apr 14 15:10 CST 2011 [RELATED]

          Jadnhm,

          Thank you for the detailed repsonse. I clicked on the web site and printed information from the H. Paulin Co. You have saved me a lot of time.

          Hugh








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    Where can I get an in-line fuel line check valve? 850 1996

    posted by  someone claiming to be hf63 on  Wed Apr 6 16:38 CST 2011 [RELATED]

    Hugh,
    Can the problem be caused by the fuel pressure regulator. In 98 S70 is located by the passenger side inside the engine conpartment or follow the line from the gas filter to the engine!!!








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      Where can I get an in-line fuel line check valve? 850 1996

      posted by  someone claiming to be Hugh on  Wed Apr 13 15:14 CST 2011 [RELATED]

      HF63

      Thank you for your reply. I will check to see if the pressure regulator is operating properly. I believe it is, because my mechanic check the presure the fuel pump was putting out and it was normal. However, I never specifically asked if the pressure regulator was tested. I will. Thanks.

      Hugh







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