leaky tranmission dipstick????

Discussion in 'General Chevy & GMC Pickups Talk' started by superfly68, Dec 17, 2003.

  1. superfly68

    superfly68 Member

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    Dec 2, 2003
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    Location:
    carlsbad usa
    i recently got a new chrome transmission dipstick for my turbo 400 to replace my leaky original one. Well, it's still leaking and i was wondering if i am missing a seal or something? if so where can i get it? i know there is the little o-ring that comes with the kit but when i insert the shaft if rolls up with it. i tried some silicon around the edge but that didn't do the trick.

    ANY IDEAS??
     
  2. dvalentine

    dvalentine Charter Member

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    Pull the dipstick out and try and see if the OLD O ring ( from the previous dipstick) is still in there.

    If so, "carefully" remove the old O ring. Then replace the one on the new dip-stick with a new one. I can't remember if the dipstick on that trans had a retaining bolt. If that is missing, replace it too.

    Dennis
     
  3. tech1

    tech1 Member

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    Yea, make sure you have a good o ring on the tube so it can seal.
     
  4. spitnvnm

    spitnvnm Member

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    Durham USA
    I had the same problem with my chrome dipstick. I had to replace the original o-ring with a larger one.
     
  5. tech1

    tech1 Member

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    Yes it's all about the o ring.
     
  6. Russm

    Russm Member

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    Location:
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    I had the exact same difficulty with the chrome one that came on my 69. I had it worked on twice at a Goodyear store we use, and it started leaking again each time. Then I tried it myself with the help of a mechanic friend of mine. We kept trying different o rings until we finally found one that we could barely get in the hole without pushing it off the indention in the tube - even put a little grease on it to get it in - but was still relatively tight, and used high temp silicone around the top. I thought I had it, but within a week it was leaking again. I finally went to a local performance shop and bought a flexible braided metal tube by Lokar. It fits better and has double o rings. It has not leaked since, and that has been at least a month. One draw back - it cost me over $50, ouch. But I didn't know what else to do. good luck
     

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