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304 FPR leak?

Discussion in 'V8 Development and Modification' started by Deuce, Nov 28, 2018.

  1. Deuce

    Deuce Super Stock

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    Hi all, I just pulled the vac line off from the fuel pressure reg to the manifold, and it smelt like fuel. It was also wet at the ends and I am sure I saw a drop of fuel come out. (It was bloody tight and didn't come off easily).
    Does it sound like the fuel is bypassing the diaphragm inside the Regulator?
    Notes:
    I was only removing the vac line to try an alternative routing.
    Fuel rail and reg may have been sitting for a while between vehicle's. Reg is VN type with screw on outlet (not the later smaller VR+ style with 1piece housing and outlet)
     
  2. Brisbarnz

    Brisbarnz Active Member

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    Yeah it’s a tell tale it ain’t happy, mine blew a black cloud on start up when it failed.
    I used my spare, new ones ain’t cheap compared to a v6.
     
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  3. Deuce

    Deuce Super Stock

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    I have a later style as a spare. But will not fit earlier rail, and later style has oe crossover that will not work with current manifold
     
  4. EYY

    EYY Well-Known Member

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    Got a pic of how yours is set up? Is it just one of the inline ones? Are you still running the return or dead head system? Plenty of options in any case - but should be no fuel in that hose at all
     
  5. Deuce

    Deuce Super Stock

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    Repco reg $258 or something like that.
    Original return system still in use.
    Using the rear most vac port of the 3 on the drivers side in middle of plenum.

    Looking to use my old rail and reg and build suitable crossover to suit that.
     
  6. EYY

    EYY Well-Known Member

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    Yeah man just have a couple of AN-8 or 10 bosses welded in. Shouldn’t cost more than $50 for somebody to do that for you. Factory rails look real nice when they’re polished imo. Those cooling fins are there for a reason too.
     
  7. delcowizzid

    delcowizzid on holiday

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    Is it like early vn v6 2 bolt big regulator.you can buy a bolt on fitting that goes out the an fittings and fit a deceint aftermarket reg or I may have a v6 one here that's in ok knick
     
  8. immortality

    immortality Moderator Staff Member

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    Good point, I might have a spare early V6 one around here if it will fit.
     
  9. Deuce

    Deuce Super Stock

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    Thanks guys, new reg would definitely be the quickest and easiest solution if you have one.
    Here is the early style V8 reg
    20181203_070041-1.jpg
     
  10. immortality

    immortality Moderator Staff Member

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    I'll pull out a V6 one tomorrow and see if it looks similar.
     
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  11. Deuce

    Deuce Super Stock

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    Cheers. VR reg (late style) is smaller in size and mounts on differently. Your sen should be the same as vr?
     
  12. Deuce

    Deuce Super Stock

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    V6 and V8 regulators look slightly different and have different part numbers.

    I am tempted to see if they can be made to work for each other though.
     
  13. delcowizzid

    delcowizzid on holiday

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    What's different about them
     
  14. Deuce

    Deuce Super Stock

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    Immortality sent me a picture of 0 280 160 249 that looks like fuel in one end and out the other (unless that is a fat vac hose on the number end).
    V8 reg 0 280 160 237 has small vac port on non number end and a larger fitting before a screw in barb for fuel out on number end. Fuel in from the side and bracket looks the same
     
  15. Deuce

    Deuce Super Stock

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    Actually. Looking at the above pic vs the picture immortality sent me, I reckon it would work with just a different vac hose fitted (which will be easy on an aftermarket manifold).

    Did you have one you do not need any longer Delcowizzid?
     
  16. delcowizzid

    delcowizzid on holiday

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    Think the old one off the vb is sitting there
     
  17. Deuce

    Deuce Super Stock

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    Mint. I might PM you for further details.
     
  18. delcowizzid

    delcowizzid on holiday

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    Sweet as I'll go get it
     
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