Results 1 to 4 of 4

Thread: Overheated engine , possible loss of piston ring tension ?

  1. #1

    Overheated engine , possible loss of piston ring tension ?

    I overheated my 1970 318 and think I may have a few cylinders that dont have compression due to loss of ring tension. What are all of the tests I could do to determine this or what other problem I may have.
    I was told there is a possibility if it is a ring tension problem there may be a way to cheat-fix it...running it on transmission or other type of oils to free up the rings? :?: :?
    All help greatly appreciated...Thanks Tommy

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    May 2006
    Posts
    2,044
    Ok, this might be a dumb question but why do you think you have messed up the rings? Is it missing really bad? Smoking badly? It might just be a blown head gasket which would make it miss and produce thick white smoke I.E> water in combustion chamber.

    Iron headed motors are pretty forgiving when it comes to over-heating, rarely can you get one hot enough to seize rings on the lands, but popping a head gasket is fairly common place. If you have messed up the rings which I doubt then you'll be tearing it down for a rebuild, there is no magic cure.
    Remove all 8 spark plugs and do a compression check and if you have any that are low, squirt some oil in them(about 4 good squirts from a oiling can) and if they come up after putting oil in there then its a ring problem.
    I'd also do a cooling system pressure check.
    Keep us updated.
    Cp
    ***IN GOD WE TRUST***

  3. #3
    Senior Member RACING JUNKIE fla1976's Avatar
    Join Date
    Aug 2007
    Posts
    1,530

    Rings

    I agree, older engines were especially forgiving. A leakdown check would be he easiest and fastest way to check it out.

  4. #4
    Senior Member RACING JUNKIE TheYellaBrick's Avatar
    Join Date
    Mar 2008
    Location
    Emmett, Idaho
    Posts
    7,334
    Had an all iron 460 in my '61 Merc. My first road trip brought to my attention a severe cooling issue. Actually seized it up overheating it, let it cool down a couple of hours, fired it up and I ran that engine hard for 19 years more with zero probs.
    TRUTH is HATE
    to those who
    HATE TRUTH

    God Bless our folks in uniform
    "We the People, have your backs"
    http://www.racingjunk.com/profile/279898


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Copyright © 2005-2016 RacingJunk.com All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the RacingJunk.com
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy