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  1. 7

    Onto my next issue

    Andy I agree with you Thank you for your thoughts.
  2. 7

    Onto my next issue

    I have a 77 K20 350 eng that has dual tanks and HAD a 6 port single wire transfer valve that took a dump and was replaced with a 3 port single wire. Figured what were supply lines that went to valve and then return line and vents which were hooked together by what they did. The engine has a...
  3. 7

    Turbo 350 issues

    Thank you I'll take a look
  4. 7

    Turbo 350 issues

    Both great ideas Thank you for the ideas.
  5. 7

    Turbo 350 issues

    Yes I have a welder. That's way to easy. Thank you again
  6. 7

    Turbo 350 issues

    Well here's what I found. As far as I can tell the vent orfice is open. Was able to take some wire and stick it in about an inch or so. Never really found a hole that the wire would go into the transmission. The pan is a stock metal pan not any deeper than my old 350 turbo in my 72 K10 It does...
  7. 7

    Turbo 350 issues

    I'll go tear into it today and report my findings. Thank you both for your insight and thoughts.
  8. 7

    Turbo 350 issues

    With all due respect then why does the dipstick show 1 pint low?
  9. 7

    Turbo 350 issues

    I just changed the filter and gasket and put in 9 qts which left me at the bottom of the fill line on dipstick.
  10. 7

    Turbo 350 issues

    Nick Thank you for your thoughts and insights. I'm kind of at a loss for other options. What thoughts might you have to my problem of the dipstick moving out the tube when driving and your suggestions to solve the problem? The trans works fine and shifts solid like it may have a kit in it Thank...
  11. 7

    Turbo 350 issues

    I was reading other posts about this same issue and I found a great thought that I'll share. After cleaning the hole take a small amount, a couple psi, of compressed air from compressor insert the line into the fill tube and hopefully it will push whatever is blocking the vent hole out. Keep...
  12. 7

    Turbo 350 issues

    My trans has just a hole in the top of case above shift linkage. On my other turbo's they've either had a metal tube or a vent like an axle vent in that spot. My truck came from Montana and was a serious work truck there. Hard to say what it's been thru and what changes/deletes were done. Thanks...
  13. 7

    Turbo 350 issues

    Hello all. I have a 77 k20 that keeps spitting the dipstick out of the tube a couple inches after driving it. I thought changing the fluid and filter as well as cleaning the vent would help. Nope still does it. Hasn't been an issue until now since selling my other truck it's become the only...
  14. 7

    Turbo 350 (TH350) Information Thread

    Hello all I have a 77 k20 turbo 350 that's giving me fits. It blows the dipstick up out of the tube about 1-2 inches after driving it even a little distance to town and back about 15 miles. Just running in shop never an issue. I just changed fluid and filter thinking that might be a problem as...

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