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304 Head Bolt Sealant

Discussion in 'Intermediate CJ-5/6/7/8' started by rusty72cj5, Jul 31, 2020.

  1. Jul 31, 2020
    rusty72cj5

    rusty72cj5 New Member

    Florida
    Joined:
    Jan 24, 2017
    Messages:
    26
    I’m sure this discussion is on here somewhere already but I couldn’t find it after searching a while. Sorry if this is a duplication.

    ‘72 304

    Installed my heads following TSM and Haynes directions. Neither mentioned anything about putting sealant on any of the headbolts.

    I’ve come across some blogs that are saying there was in fact one bolt on the driver’s side that is not blind and should have gotten some sealant to prevent coolant climbing the threads.

    Anyone know if this is true, which bolt it actually is, and at this point is it worth taking that head off again, putting sealant, and re-torquing the whole thing? I would rather not at this point but if it is mission-critical obviously I will.
     
  2. Aug 1, 2020
    TheBeav1955

    TheBeav1955 Member

    Wyoming, Mi
    Joined:
    Apr 14, 2004
    Messages:
    261
    Rusty, I am just putting my 72 304 back together after all the machine work. I didn't see any sealant on any of the bolts I took off. I didn't put any sealant on any of the new bolts I installed. Might have missed but I never had any coolant on top of the heads under the valve covers or at any for them on the ones that are external to the cover. I still have all the bolts and will check them out
     
  3. Aug 1, 2020
    timgr

    timgr Eppur si muove. 2020 Sponsor 2019 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    21,235
  4. Aug 1, 2020
    TheBeav1955

    TheBeav1955 Member

    Wyoming, Mi
    Joined:
    Apr 14, 2004
    Messages:
    261
    I did look at the bolts and there was nothing on any of them
     

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