Lower dipstick tube 3951600

Discussion in 'Engine Topic' started by 8pack, Jan 2, 2017.

  1. 8pack

    8pack Veteran Member Lifetime Gold Member

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    Aug 29, 2007
    Pittsburgh, PA
    I just installed a Lokar dipstick. It says to be sure you have the lower dipstick tube installed GM Part#3951600.

    How can I tell if this part is installed? I know it slides into the block and has a flange that keeps it from dropping into the block. The new dipstick housing was a good firm tight fit when I put it in and I assume it would be a loose fit without it.....I can't see by just looking at it. Also, If I did need to install the tube would I need to remove the header?

    Thanks!
     
  2. Bandit723

    Bandit723 Veteran Member

    548
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    Oct 1, 2016
    Waupaca WI
    Lower tube is to make sure that the dip stick does not float up in to a moving part. with out pulling the oil pan I would pull the Lokar and shine a light down the dipstick hole to see if there is a tube in there.
     
  3. 8pack

    8pack Veteran Member Lifetime Gold Member

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    Aug 29, 2007
    Pittsburgh, PA
    I don't think I will be able to see with the headers in the way. Maybe I can bend a wire and use it as a feeler.....

    It's a 383 so I would hope the engine builder put it in, I just am not sure.
     
  4. Twisted_Metal

    Twisted_Metal Moderator Staff Member Lifetime Gold Member

    24,395
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    Feb 26, 2004
    Bloomington, MN
    I was going to suggest using a wire with a bend on the end.
    (Not a hooked end... You don't want it to get stuck!)
     
  5. 8pack

    8pack Veteran Member Lifetime Gold Member

    1,554
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    Aug 29, 2007
    Pittsburgh, PA
    I know! If its copper it should be able to pull straight. Like some 15 amp romex ground wire.....don't feel like taking it off again though...I hate when I have to install things multiple times!
     

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