1958 Lark 35

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  • July 31, 2015 at 9:40 pm #21339
    chris-p
    Participant

      In general for that motor:

      Size 10 screws 25 to 35 inch lbs
      Size 12 screws 35 to 40 inch lbs
      Size 1?4" 60 to 80 inch lbs
      Size 5?16 120 to 140 inch lbs
      Size 3?8 220 to 240 inch lbs

      July 31, 2015 at 10:45 pm #21343
      vintin
      Participant
        quote Chris_P:

        Start in the center, and spiral outwards as you go.

        Start at 1/2 torque for a revolution, then 3/4 torque, then the final torque.

        The compression relief valves have a gap of 020, or is it 010, Ill have to check the manual. Been a while since Ive gapped one.

        Compression release is .020

        I would think there would not be a compression release system when using a 40hp head.

        July 31, 2015 at 11:43 pm #21344
        flathead
        Participant

          great, thanks guys. Going out to see if I can get it put back together,

          August 24, 2017 at 12:19 pm #63722
          Moxy
          Participant

            Canada Member - 2 Years
            quote flathead:

            great, thanks guys. Going out to see if I can get it put back together,

            Hate to revisit such an old thread, but I read all through it and my curiosity is getting the better of me. (I also could see that you still visit the forum, flathead :)) …so I was just wondering – did hunting down all the rubber pieces solve the overheating issue?

            I just bought an old ’58 Lark and I’ve been doing some reading to determine what some problems down the road might be…

            August 24, 2017 at 8:02 pm #63729
            outbdnut2
            Participant

              US Member
              quote VinTin:

              I would think there would not be a compression release system when using a 40hp head.[/size]

              The first 40 HP motors, which came out in 1960, all had compression release just like the 35s. Not sure what year it may have been discontinued.
              Dave

              August 26, 2017 at 11:13 pm #63843
              flathead
              Participant

                Yes it did take care of the problem. I don’t remember exactly where in the adventure that quote was from. Chasing it all down took a while. Each time I was sure I had it figured out, no more rubber, then had to go in a little deeper.

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