445 Oil pump filter bypass?
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445 Oil pump filter bypass?

  1. #1
    "Mad" Member Jet Mad's Avatar
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    Default 445 Oil pump filter bypass?

    How do I shim the oil filter bypass on a HV Mellings pump?


    JM


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  3. #2
    Van
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    The bypass on the pump is not the filter bypass, It's the pressure relief valve. The filter bypass is on the filter housing that you screw the filter on to. You will not need to shim the pump if you are running the HV pump. If you are not I would try talking to GOD for help
    Van

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    "Mad" Member Jet Mad's Avatar
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    Quote Originally Posted by Van View Post
    The bypass on the pump is not the filter bypass, It's the pressure relief valve. The filter bypass is on the filter housing that you screw the filter on to. You will not need to shim the pump if you are running the HV pump. If you are not I would try talking to GOD for help
    Van
    I asked, and He said I must rephrase my question.

    How do I prevent the oil from bypassing the filter when I am using a H/V pump. I am running a remote filter and oil cooler.

    JM


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  6. #4
    Van
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    Most remote oil filter heads use the Ford type filter. The Ford filter has a built into the filter bypass, it's not something you can modify. There are some remote filter heads out there that use a different filter that is not bypassed internally but most people would just use the system 1 filter. It will just screw on to any ford style mount head and has no bypass
    Now I understand what you were asking
    Van

    Isn't this for an OLDS ? If it's for a Chevy just use the factory adapter that spaces the oil filter down and has fittings for a remote cooler. This factory adaptor has duel bypasses, one for the filter & one for the cooler, don't mess with the bypass for the cooler, but you can plug the filter one. Use only a hi flow filter if you do this mod.
    Last edited by Van; 04-06-2010 at 11:39 AM.

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    "Mad" Member Jet Mad's Avatar
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    It is a 455 Oldsmobile, misspelled it in my post as 445

    Here are some pics of the oil cooler adapter, the oil filter adapter bolts onto this unit. Remote filter as in the pic of the engine.
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    Van
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    OK what you have is a stacker plate that reuses the factory filter mount ? If so the filter mount most likely has the bypass valve in it. The filter should be on the block not remote, just the cooler should be remote ? Most of the stacker style plates have a bypass for the cooler itself this is a good thing as most coolers are very restrictive and need a bypass for the same reasons filters need bypasses. If you are running the cooler with no bypass make real sure it has much bigger hoses than in the pics and can flow all the oil needed. I tend to run a 10 quart pan and no cooler but if I do run a cooler it must have a bypass. You don't want that nice OLDS tossing it's cookies again. Don't put a plate over that stacker and block it off and just run those lines, that's a no no
    Van
    Are you trying to eliminate the filter bypass because you have metal debris in the cooler and lines ? This is the best advice I can give you, toss all that stuff and put the factory filter mount back on the block and run a good 10 quart pan. If you need the mount for the filter I have one = It's free just pay the shipping. I do have a new Milodon pan also but I don't want this to sound like I'm trying to sell you parts.
    Last edited by Van; 04-06-2010 at 11:06 PM.

  9. #7
    "Mad" Member Jet Mad's Avatar
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    I have the stock factory filter mount. I run a 8qt Moroso pan because my motor is on a 3 point motor mount.

    Thank you very much for the offer on the spares, I might take you up on that.

    The water temp on the river where I stay is average 22 - 25 degrees and because I am only running an 8qt pan I am considering running an oil cooler.

    JM


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    I use the same setup on my 455. I run a cooler and remote filter off of that adapter. It does not have a bypass built in to it. The bypass will be on the filter adapter. If all you want to do is block that bypass, you can modify the filter adapter use any of the aftermarket ones that don't have a bypass.
    Hope that helps,
    Tim

  11. #9
    "Mad" Member Jet Mad's Avatar
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    Quote Originally Posted by cv19 View Post
    I use the same setup on my 455. I run a cooler and remote filter off of that adapter. It does not have a bypass built in to it. The bypass will be on the filter adapter. If all you want to do is block that bypass, you can modify the filter adapter use any of the aftermarket ones that don't have a bypass.
    Hope that helps,
    Tim
    Thanks Tim,

    I am going to run it the same as yours. Will put on a big high flow filter.

    JM


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  12. #10
    Horsepower sells Engines lefty's pride's Avatar
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    so you rather no oil over dirty oil? of you pressure before the filter is below the pop off you dont need to worry about it. but just call a local filter supplier and see if they have a filter # that doesn't have a bypass but matches every where else
    "Horsepower sells Engines but torque wins races."
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