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Thread: Fuel check valve

  1. #1
    Join Date
    Feb 2005
    Location
    kIWI LAND(New Zealand)
    Posts
    183

    Default Fuel check valve

    Ok Guys I have a hard start problem when warm or hot so I thought I would try the Fuel check valve,I have a few questions.

    Were is the old check valve does it have one?
    Can I get this part at my local store or do I have to get it at BMA?
    I sent BMA a email for a price and shipping cost to New Zealand.
    What does this check valve do.
    I had a look at http://www.bmwe34.net/e34main/trouble/535ihot_start.asp

    Thanks
    89 535 272,000km auto Euro

  2. #2
    Join Date
    Oct 2004
    Location
    Honolulu
    Posts
    3,105

    Default Check valve lives with the fuel pump, in the tank

    The fix kit from BMA is an inline valve that goes on the fuel line, under the access panel in the trunk

    The valve keeps the fuel system pressurized so starts are a snap.


    Vee ave vays of dealing vid your kind...........

  3. #3
    Join Date
    Jan 2004
    Posts
    4,150

    Default The check valve is originally in the top of the fuel pump but

    when that one fails you can use the inline as a replacement. The check valve keeps the line pressurized all the way from the fuel pump up to the injectors, this prevents vapor lock from ocurring since the boiling point of the fuel is much higher when its under 35 psi than at atmospheric.. So it serves 2 purposes , 1 to ensure that fuel is right at the injectors when you first crank it, and 2. to prevent vapor lock from occurring in the fuel line






    Quote Originally Posted by 2fast
    Ok Guys I have a hard start problem when warm or hot so I thought I would try the Fuel check valve,I have a few questions.

    Were is the old check valve does it have one?
    Can I get this part at my local store or do I have to get it at BMA?
    I sent BMA a email for a price and shipping cost to New Zealand.
    What does this check valve do.
    I had a look at http://www.bmwe34.net/e34main/trouble/535ihot_start.asp

    Thanks

  4. #4
    Join Date
    Feb 2005
    Location
    kIWI LAND(New Zealand)
    Posts
    183

    Default

    Thanks for great replies

    Can I get this Fuel check valve from my local parts store or will they look at me funny when I ask for it.
    89 535 272,000km auto Euro

  5. #5
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,257

    Default a pic from Bill's archives


    I think the p/n is no longer up to date, latest one should be 16141179282.

    Copy that. It might be and it is not the first time that local parts store will look at you funny when you ask for it.

  6. #6
    Join Date
    Feb 2005
    Location
    kIWI LAND(New Zealand)
    Posts
    183

    Default

    I phoned BMW "sorry parts closed till monday"
    So I phoned 4 part stores No No No No.
    That number Shogun, can I use that at the BMW part store? 16141179282
    89 535 272,000km auto Euro

  7. #7
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,257

    Default

    That part number was given to me about 6 months ago from a guy in Germany. On 7er.com I do the tips and tricks corner and had posted the copy from BillR. So some people complained that they could not get the old p/n and someone mentioned this one. But I assume you can use any other check valve, as long as it lasts 3 bar.

  8. #8
    Join Date
    Feb 2005
    Location
    kIWI LAND(New Zealand)
    Posts
    183

    Default

    Ok thank you
    89 535 272,000km auto Euro

  9. #9
    Join Date
    Feb 2005
    Location
    kIWI LAND(New Zealand)
    Posts
    183

    Default

    I Phoned BMW and the guy did not know what I was talking about,I said would a part number help he said "yes" so I gave it to him and he found it "Oh I have never seen one of those before Where did you get the part number" I reply from the internet (Thank's Shogun)
    $92NZ 7-10day from germany.
    BMA has them for $26USand$28US to deliver.
    So they work out to be the same price all up so I will go with the stealer and will post when fitted.
    89 535 272,000km auto Euro

  10. #10
    Join Date
    Mar 2005
    Location
    Long Beach, CA
    Posts
    2,563

    Default

    "I Phoned BMW and the guy did not know what I was talking about,I said would a part number help he said "yes" so I gave it to him and he found it "Oh I have never seen one of those before Where did you get the part number" I reply from the internet (Thank's Shogun)"

    We have our sources!

    Ralph Mendoza Jr. - Long Beach, CA

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