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Thread: Smokes and misses

  1. #11
    Join Date
    Jan 2011
    Location
    Fernandina Beach, FL
    Posts
    3,689

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    Continuing on with the temperature of the engine, I found that my truck did not get warm. I confirmed that there was no thermostat in it. With a new thermostat, the temp comes up rather quickly (we are talking Florida, summer) and stops at 180. It never goes above that, even in a parade. These engines will suffer from not getting hot enough to burn off the moisture in the engine.

    Now I will say that my truck has a new three core section in the original radiator. No sludge or restriction. I have also read that an engine can actually overheat with no thermostat because the coolant goes so quickly through the core that it doesn't have time to have the heat extracted. Don't know if that is an urban legend of factual.

    The one thing that I always refer back to is that these trucks ran well when new. Bringing it back to original spec usually just works.

    About the valve seals, I think that Kaiser fixed the leaky seals in tha 1969 trucks; or maybe they were replaced in the motor pool. If there is good compression, that's a start (and a good sign to me). As long as the valve guide is not hogged out, you may be able to replace the seals without pulling the head. That is always a BIG plus.

  2. #12

    Default

    Compression on cylinder 6 is only 60 psi, not good, but better than nothing?

    Confirmed to have no thermostat, adding it now then warm it up for some more atf down the carb

  3. #13

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    Quote Originally Posted by farmer View Post
    Compression on cylinder 6 is only 60 psi, not good, but better than nothing?
    Barely. I think mine was at 140-ish straight across when checked before installation.

  4. #14

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    Quote Originally Posted by Nailhead View Post
    Barely. I think mine was at 140-ish straight across when checked before installation.
    Fark.

    Ran it up to 200, still in 3rd gear WOT to get up hills, fed it atf, ran it more.

    The other 5 run better but #6 is still down for the count. Guess I'll continue on with the 454

    Thanks guys

  5. #15
    Join Date
    Jan 2011
    Location
    Fernandina Beach, FL
    Posts
    3,689

    Default

    Quote Originally Posted by farmer View Post
    Fark.

    Ran it up to 200, still in 3rd gear WOT to get up hills, fed it atf, ran it more.

    The other 5 run better but #6 is still down for the count. Guess I'll continue on with the 454

    Thanks guys
    Well that just sux, I am sorry to hear that. I guess that at least, the head would need to be pulled. Not fun (And I have not ever done one).

    Sorry for your grief.

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