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Dauntless offy intake temp sender fitting size

Discussion in 'Early CJ5 and CJ6 Tech' started by rdynes01, Dec 8, 2015.

  1. Dec 8, 2015
    rdynes01

    rdynes01 Member

    Colorado
    Joined:
    Jun 8, 2008
    Messages:
    113
    I have an offenhauser 4 barrel intake for my dauntless and need to know the thread size for the temp sender fitting that is right behind the thermostat housing . It looks to be about 3/4" but I'm not sure of the thread.Can anyone help? Bob
     
    rdynes01, Dec 8, 2015
    #1
  2. Dec 8, 2015
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    Hi - it's probably 3/8" or 1/2" NPT (National Pipe Thread) size. The NPT standard refers to the interior diameter of the pipe, and the outside diameter is significantly larger than the nominal size of the pipe. Here is one description of the sizes - http://www.engineersedge.com/hardware/taper-pipe-threads.htm - you can measure this with your $10 Harbor Freight vernier caliper, or you can go to the Home Depot or Lowes and buy a couple of pipe nipples in 3/8" and 1/2" NPT for a couple of bucks and try them. Or take the manifold and try them in the store. Should be a NPT size, regardless.
     
    timgr, Dec 8, 2015
    #2
  3. Dec 8, 2015
    CJ Joe

    CJ Joe Truckhaven Tough!

    Pinon Hills, CA
    Joined:
    Nov 9, 2002
    Messages:
    390
    OMG Tim, that is funny.
     
    CJ Joe, Dec 8, 2015
    #3
  4. Dec 9, 2015
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,474
    The DP Offy intake has a couple size holes there you can use. They are all NPT thread - just put mine back on a rig and I use two of the ports. I keep brass fittings for size adaption in the shop for just such a deal.
     
    Warloch, Dec 9, 2015
    #4
  5. Dec 9, 2015
    tarry99

    tarry99 Member

    Northern California
    Joined:
    Oct 29, 2012
    Messages:
    3,784
    1/2" NPT
     
    tarry99, Dec 9, 2015
    #5
  6. Dec 10, 2015
    rdynes01

    rdynes01 Member

    Colorado
    Joined:
    Jun 8, 2008
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    113
    Thank you very much guys....Bob
     
    rdynes01, Dec 10, 2015
    #6
  7. Dec 10, 2015
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,474
    Yup - went out and looked. Mine has one 3/8" and two 1/2" NPT fittings in the water jacket are for the intake.
     
    Warloch, Dec 10, 2015
    #7
  8. Feb 26, 2016
    shaun

    shaun Member

    Lebanon, Ohio
    Joined:
    Oct 15, 2015
    Messages:
    390
    I have a dual port Offy with a holley 4bbl carb 390cfm. I noticed there are different ports than the original intake. How and where do the hoses connect to the offy pictures would be great. started to work on getting my engine up to par now and looking to paint the engine block and change the seals, but came to this intake situation and could use assistance.
     
    shaun, Feb 26, 2016
    #8
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