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Oil Bypass valves 30psi

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  • Oil Bypass valves 30psi

    Hello from Oz gentleman,
    The more i read about these bypass valves the more confused i get. 454 Mag Mpi Horizon 2000 x 2 in Sea Ray Engine VI
    During rebuild i removed these oil bypass valves, which was a good thing as they where blocked with debris.
    when purchasing new valves was where the confusion starts as all suppliers had 30 psi valves.
    Some people i read leave them out all together. My manual says "If you have a vertical external oil cooler fitted to front of the engine then you must install a 30 psi valve" Now this is the setup i have. So the question i have is " should i install them , them being 2 of, or leave them out, Do i install the 30psl valves in both locations or do i install just 1 in one location. Lets call Locations center and off center.
    Any help to clear this up would be greatful as motors are still sitting on stands as apparently if i get this wrong i can cook the motors.
    kind regards

  • #2

    on plumbing of your oil cooler and your remote filter head as well as if there is a bypass in your remote filter head

    if you leave them out, you will have no oil flow.

    since you have the vertical cooler, you can either put 30# in each location, or you can stake a plug in the rail oil cooler plumbing

    start reading http://garage.grumpysperformance.com...ferences.4576/
    1988 Cruisers Rogue 2420 -VP 290 DP now powered by custom 468 - http://forums.iboats.com/forum/owner...988-rogue-2420

    Past Boats
    1970 Wooster Hellion - Merc 9.8
    2002 SeaRay 190BR - 5.0 - A1G2 - "Cheasheads in Paradise"
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    What’s behind you doesn’t matter.Enzo Ferrari


    • #3
      Sign up today
      Thank you Scott
      i followed the standard 1 in each location
      Thank for your help
      Aaron in OZ