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Thread: Oil Pressure Gauge

  1. #1
    Join Date
    Apr 2009
    Location
    New Mexico
    Posts
    155

    Default Oil Pressure Gauge

    Due to my OCD, I'm adding an oil pressure gauge to my 91 RRC.. The thread for the sender is 1/8 NPT.. I'd love to be able to just get an adapter and put it in one of the existing holes in the oil filter housing, but I can't afford to have the car down for long enough to drain the oil and find out what thread the existing holes in the housing are.. Anybody know what they are off the top of their heads? (I'd like to get the necessary adapter and have it ready for the next oil change.. And I DON'T want to use a "sandwich" to mount the sender)
    Thanks.
    1956 86" S1
    1957 88" S1
    1967 109" SIIA NADA
    2007 LR3

  2. #2
    Join Date
    Oct 2006
    Posts
    1,199

    Default

    I want to say the ports on the adapter are NPT, but the exact size I am not sure if it's 1/2

  3. #3
    Join Date
    Apr 2009
    Location
    New Mexico
    Posts
    155

    Default

    Thank you.. I was also thinking they were NPT, but it looks like I'll just have to pull one of the bolts out and find out what the size is for sure.
    1956 86" S1
    1957 88" S1
    1967 109" SIIA NADA
    2007 LR3

  4. #4
    Join Date
    Oct 2006
    Posts
    1,199

    Default

    Yeh everything on the engine is SAE, not metric.

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