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Thread: Disconnecting gauges

  1. #1
    Join Date
    Aug 2019
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    Washington
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    Default Disconnecting gauges

    When you disconnect the oil pressure gauge and fuel pressure gauge, what do you use to cap off the lines to keep oil or fuel from leaking out?
    Cat D6 5R

  2. #2
    Join Date
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    If you have an extra adapter ell, use it with a pipe cap.
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  3. #3
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    Default

    Quote Originally Posted by STEPHEN View Post
    If you have an extra adapter ell, use it with a pipe cap.
    The problem I have is I have no clue what the size of the connections are.

    I looked at the gauges in my parts book and I don't think the gauges match, but the parts book seems to suggest they may be 1/4" or 1/8"

    I can probably hit the hardware store if those are the sizes and get some pipe extensions and/or caps. I just do not know what size would be the proper size.
    Cat D6 5R

  4. #4
    Join Date
    Dec 2019
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    Pouce Coupe, BC Canada
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    Default 1/8" pipe thread ?

    Quote Originally Posted by BigAgCat View Post
    The problem I have is I have no clue what the size of the connections are.

    I looked at the gauges in my parts book and I don't think the gauges match, but the parts book seems to suggest they may be 1/4" or 1/8"

    I can probably hit the hardware store if those are the sizes and get some pipe extensions and/or caps. I just do not know what size would be the proper size.
    -i find 1/8" pipe thread is super common for small lines and fittings...that's where a small box of misc fittings comes in handy...brass, copper, stainless...whatever....and if i don't find something that threads...i just use a plastic cap or plug...and press it on snug...
    Caterpillar D6C 99j

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  5. #5
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    Apr 2007
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    I use electrical tape as it can be stretched tight!

  6. #6
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    Default

    Quote Originally Posted by drujinin View Post
    I use electrical tape as it can be stretched tight!
    Ok, I might have inferred the question incorrectly, I was thinking he wanted to run the engine with the gages removed, so if not, just tape them up. Sometimes I just pull a small square of plastic over the line fitting and all then tape around the knob.
    Thirty PS4051
    Gas 35's
    Diesel 35
    Diesel 40
    Gas 50's 5A
    Diesel 50 1E1755
    Diesel 75
    D6100 power unit 4C9144
    D 8800 power unit 9J 6113SP
    RD4
    D4 7J & 7U
    R4 4G
    D2 5u & 3J
    212 9T
    LeTourneau D4 tournapull/Q Carryall
    Letourneau D Carryall's
    LaPlant-Choate CAB-97.
    Henry G1 hyd pan

  7. #7
    Join Date
    Apr 2007
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    Elkhorn, WI
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    Default

    Yea, I see he says leaking out, But he didn't say spraying out! LOL!

  8. #8
    Join Date
    Aug 2019
    Location
    Washington
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    Default

    Haha, yeah. I may try to build a little kit from the hardware store, but could maybe do the electrical tape thing.
    Cat D6 5R

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