Fuel spray from bov

Thread in 'Technical Questions' started by magicflying198, Dec 19, 2013.

  1. magicflying198

    magicflying198 Member

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    Hi guys,

    im in having a issue that I'm getting fuel spraying out of my bov !!!

    any ideas why ?

    thanks
     
    #1 magicflying198, Dec 19, 2013
  2. mc_bob

    mc_bob Active Member

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    Split fuel pressure reg got a split in it putting fuel down vac lines?
     
    #2 mc_bob, Dec 19, 2013
  3. magicflying198

    magicflying198 Member

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    Nice guess... I will look into it :)

    I also need to see if throttle body is sealing when closed and also check if and injector is stuck full open !!

    They are my guess's !! Correct me if wrong before I strip apart at weekend
     
    #3 magicflying198, Dec 19, 2013
  4. Andy_F

    Andy_F S13+S15=S28?

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    Silly question, but is it definitely fuel? BOV's quite often spit oil vapour...
     
    #4 Andy_F, Dec 19, 2013
  5. Swampy442

    Swampy442 Active Member

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    If your bov was spitting fuel I doubt your car would run due to over fuelling. Going to be oil vapour.
     
    #5 Swampy442, Dec 19, 2013
  6. magicflying198

    magicflying198 Member

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    it is defiantly fuel as its oil vapour its puddles of it and smells just like v power !!!
     
    #6 magicflying198, Dec 19, 2013
  7. chopaholic

    chopaholic Well-Known Member

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    Its spitting Fuel? Sounds like a fire waiting to happen.
     
    #7 chopaholic, Dec 19, 2013
  8. magicflying198

    magicflying198 Member

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    luckily i noticed it after initialling the engine and not driving it yet... but yeah its a concern... i was thinking about putting a screamer style pipe off it and having out of the wing with an igniter lol
     
    #8 magicflying198, Dec 19, 2013
  9. Swampy442

    Swampy442 Active Member

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    Where is the bov located?
     
    #9 Swampy442, Dec 19, 2013
  10. Ruishy1

    Ruishy1 Active Member

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    how the hell does fuel manage to get to your BOV ?
    The injectors are after the BOV and the unburnt fuel would go down the exhaust, fuel would naturally never get introduced to the inlet so something is majorly wrong
     
    #10 Ruishy1, Dec 19, 2013
  11. RobinvdH

    RobinvdH Member

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    When a fuel pressure regulator is internally leaking it's quite easy to get it into the inlet manifold, it's pumping with a healthy +- 3 bars? :p
    Still, don't see how it could 'easily' spray out of the BOV even if it's leaking like that... plus, it wouldn't really run, well it might, but would be super rough and not driveable really
     
    #11 RobinvdH, Dec 19, 2013
  12. magicflying198

    magicflying198 Member

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    The BOV is about 8 inches from the TB...

    The car idles and runs fine... haven't driven it yet as brakes and prop are not yet fitted... no idea on fuel pressure as using stock FPR...
     
    #12 magicflying198, Dec 19, 2013
  13. RobinvdH

    RobinvdH Member

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    Really doubt it's fuel then tbh mate...

    what kind of amount of spray are you getting? is the engine using a lot of oil?
     
    #13 RobinvdH, Dec 19, 2013
  14. magicflying198

    magicflying198 Member

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    its clear and smells of fuel and a lot comes out... I'm 100% sure its not oil as its black and smells of oil... !!!

    its also clean fuel as it sprayed all over my hand and i wasn't left with a oily residue...
     
    #14 magicflying198, Dec 19, 2013
  15. 200sx-s13-1993

    200sx-s13-1993 Member

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    Hello
    Magicflying198

    Have you try'd taking off the vac pipe to the bov to see if there is any coming out from there? wot is the car ideling at? was the engine warmed up before it started to happen or did it do it from getgo?
     
    #15 200sx-s13-1993, Dec 20, 2013
  16. magicflying198

    magicflying198 Member

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    It was worse when cold and it's idling a bit fast which I think was due to being on choke and I had to adjust the TPS but still happened when it warmed up !!! I removed the vac line and the engine hesitated but when I blipped the throttle the bov wouldn't open with no vac line as there is not drop in pressure on the inlet side...

    I'm stumped
     
    #16 magicflying198, Dec 20, 2013
  17. RobinvdH

    RobinvdH Member

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    and there's nothing coming out of that vac.line when you disconnect it from the BOV?
     
    #17 RobinvdH, Dec 21, 2013
  18. Swampy442

    Swampy442 Active Member

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    Have you taken the intake pipe off and seen what its like inside?
     
    #18 Swampy442, Dec 21, 2013
  19. magicflying198

    magicflying198 Member

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    i will be taking it all apart tomorrow to have a closer look
     
    #19 magicflying198, Dec 21, 2013
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