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  • Oil filters

    on my ka24de the bypass valve was broken so its plugged. I am looking for an oil filter and was looking at these two filters but i dont know what it means to be full flow and is there a benifit for a bypass valve to be a lower psid?

    Product Guide LF523


    Descriptions: Full-Flow Lube Spin-on
    Contains: Anti-Drainback Valve;8 PSID By-Pass Valve
    Fits: 2000-09 Honda S2000; 2004 Mazda Miata; Equipment with Isuzu, Kubota, Yanmar Engines
    Replaces: Honda 15400-PR3-014; Isuzu 8-94101-021-0; Kubota 15241-32092; Yanmar 12445035100; Baldwin B179
    Thread: M20 x 1.5
    Product Guide LF240


    Descriptions: Lube Spin-on
    Contains: Anti-Drainback Valve;14 PSID By-Pass Valve
    Fits: Acura, Chrysler, Dodge, Eagle, Ford, Honda, Infiniti, Isuzu, Mazda, Mercury, Mitsubishi, Nissan, Plymouth, Saturn Automotive, Light-Duty Trucks
    Replaces: Chrysler MD135737; Ford F32Z-6731-A; Mazda JEY0-14-302; Baldwin B1402
    Thread: M20 x 1.5
    O.D.: 2 9/16 (65.1)
    Length: 3 1/2 (88.9)

  • #2
    I looked in the FSM and there's no PSID spec listed for the bypass, but it does say they're replaceable. I didn't find a part number online but it might be worth a trip to the dealer to investigate. The bypass on the engine inlet and the bypass in the filter would bypass the same way, but there may be a reason to have two setpoints.

    https://zilvia.net/f/showthread.php?t=265699

    http://forums.240sxone.com/archive/i...p/t-10075.html

    https://www.bobistheoilguy.com/forum...s_delete,_is_i

    https://forums.nicoclub.com/check-ba...d-t275727.html

    http://nissanroadracing.com/forum/ch...-valve-failure
    Last edited by djsilver; 09-19-2019, 05:34 PM.
    Don Johnson (really!)
    Just so you know.

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    • #3
      I found one for RB motors that's probably the same thing. Read the accompanying text for entertainment value only! ;-)

      https://www.platinumracingproducts.c...-bypass-valve/
      Don Johnson (really!)
      Just so you know.

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      • #4
        I found the part number for the bypass valve in one of those threads. 15241-40F00

        There’s good discussion about the subject. My take is that filtered oil is better than un-filtered oil, but un-filtered oil is better than insufficient oil.


        Sent from my iPhone using Tapatalk
        Don Johnson (really!)
        Just so you know.

        Comment


        • #5
          You want one or the other. Plugged block bypass valve, get a filter with one and vice versa. I honestly don't think it'll have much impact either way. Use the higher rated PSID filter and one that will hold more oil.

          Don't forget due to my obliviousness when I had the KA S13, I accumulated 70+ hours of racing on unfiltering oil prior to spinning a rod bearing. We won a LeMons race during that time also.
          Last edited by gills; 09-20-2019, 07:21 AM.
          Core4 Motorsports
          CLICK HERE for Wilwood FSL6R Radial Bracket & Rear Wilwood BBK GROUP BUY
          S14 VQ AER Endurance Racing Team

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          • #6
            Originally posted by gills View Post
            You want one or the other. Plugged block bypass valve, get a filter with one and vice versa. I honestly don't think it'll have much impact either way. Use the higher one and one that will hold more oil.

            Don't forget due to my obliviousness when I had the KA S13, I accumulated 70+ hours of racing on unfiltering oil prior to spinning a rod bearing. We won a LeMons race during that time also.
            I agree. The idea of plugging the block bypass and getting a new bypass valve with each filter sounds good, but requires paying attention to filters to make sure it’s there.


            Sent from my iPhone using Tapatalk
            Don Johnson (really!)
            Just so you know.

            Comment

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