What is a good way to re-seal a dip stick tube?

Discussion in 'Ranchero Tech Help' started by Jeff B, Feb 9, 2018.

  1. Jeff B

    Jeff B In Overdrive BRONZE MEMBER

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    I had to remove the dip stick tube on the Ranchero and tweak it a bit to go around the blower bracket.
    The little tab that braced the top of the tube had to be removed and I will figure something out to replace that.
    What is the best way to seal the tube to the block. I get mixed reviews on silicone and oil and I would hope to get at least a little holding strength. This is on a '70 302.
     
  2. ribald1

    ribald1 In Maximum Overdrive PLATINUM MEMBER

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    If the end of the tube away from the block is not solidly secured to either the block or head the tube will leak and also quickly fail.
    I haven't run into leaks on front mount tubes, probably because there is little oil at the point they enter.
     
  3. handy_andy_cv64

    handy_andy_cv64 In Maximum Overdrive SILVER MEMBER

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    As long as the hole and the tube end is clean and oil-free, Black RTV works just fine: allow it to cure 24 hours before exposing it to hot oil. And John's right about the bracket; at the very least, it can end up pulling out of the block if it's not secured topside.
     
  4. Jeff B

    Jeff B In Overdrive BRONZE MEMBER

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    I have a tube of Ford oil pan stuff, I will see if is still good. I agree on the bracket on the tube. The bolt on the head is now covered up so I will have to find another way to secure it.
     
  5. Basstrix

    Basstrix In Overdrive BRONZE MEMBER

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    I agree with Andy. It was normal to remove the dip stick tube when we rebuilt engines at our shop and the only thing I can remember us using was silicone. The tube needs to fit snugly into the block.
     
  6. pmrphil

    pmrphil In Overdrive GOLD MEMBER

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    Permatex "The Right Stuff" will add some hold, as well as seal it very well, even if it's a bit loose.
     
  7. beerbelly

    beerbelly In Overdrive SILVER MEMBER

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    JB Weld- fixes most things, including my oil pan the PO repaired:

    Old oil pan patch.jpg
     
    Jeff B likes this.
  8. 1965 Ranchero 66G

    1965 Ranchero 66G In Maximum Overdrive PLATINUM MEMBER

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    A whack with a drift punch on the block end of the tube to make a tighter seal,then seal it.
     

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