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Thread: by-pass valve help

  1. #1
    SCH Member
    Join Date
    Jan 2003
    Posts
    58

    by-pass valve help

    what size drill bit and tap do i need to make threads to install the by-pass vavle?thanks

  2. #2
    Senior SCH Member Jason915's Avatar
    Join Date
    Nov 2002
    Posts
    179
    grodri1972, do you have a steel discharge tube? Don't your inlet already have threads in it for a fitting? If indeed you have a steel discharge, or (aluminum) you will probably have to drill and braze in a bung for a fitting. On the inlet side I have seen guys drill and epoxy a fitting in if the inlet don’t already have a place for the fitting. The size of the fittings would depend on how large the hoses are from the bypass valve.

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