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Thread: 1/8 NPT thread.

  1. #1
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    Default 1/8 NPT thread.

    As far as I know a 1/8 NPT thread is a tapered thread so will need sealing with something. Does anyone know off the top of their head what is best to use to do this? Special sealer or teflon/PTFE tape?

    Got all the bits for the fuel pressure sender so want to make sure its all put together correctly now.
    1994 Alfa Romeo 155 Q4: Dozeing in the garage.
    2009 Audi A4 tdi: Everyday drive.
    1994 Alfa Romeo 155 , 1995cc Std Standard Black

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    I read that PTFE tape will react with petrol and turn gooey. What about Loctite (maybe a one time fitting though)
    Petrol resistant:
    http://65.213.72.112/tds5/docs/242-EN.PDF

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    Default

    I used PTFE tape, and have not had a problem so far.

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