Sunday was bad news. I'm going to need some help!

Discussion in 'Small Block Tech' started by Storm1, Jul 9, 2018.

  1. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  2. Storm1

    Storm1 Silver Level contributor

    Wow! that's a great read thanks Larry.

    Lots of good info I'll check as I'm putting everything back together.
     
  3. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Definitely want to check out the transmission and cooling circuit. Yardley once had transmission shifting issues that confounded him, and it turned out his new trans cooler was restricted. I don't think it hurt the motor, but he was pretty frustrated for awhile.

    When I first went to a fixed pitch transmission, and new converter, I rigged up an oil pressure gauge in the return line. Pressures were pretty low, 20-30 psi if I remember correctly. When I put the transmission in manual low and second, it boosted pressures, up around 40-60 psi. Something to think about.
     
  4. Storm1

    Storm1 Silver Level contributor

    I'm not running a trans cooler, but I will definitely check the circuit pressure now. I had no shifting issues before the breakdown, but...Someone has been in that trans and added a shift kit, so it might be a good idea for me to have it gone through again.
     
  5. mikethegoon

    mikethegoon Well-Known Member

    I can't see any pics of the fried thrust. Just boxes / ?
     
  6. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Measure the main line pressures inside the transmission. If they are excessive, it can contribute to the problem. Like I said, manually selecting gears boosts the pressure beyond what it normally is, so if it's too high already.
     
  7. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    That's on your end, I see everything just fine.
     
  8. mikethegoon

    mikethegoon Well-Known Member

    I see the pics now.(on tablet). If it was me I would get another block and crank. At the shop I work at the money for replacement heads and new cover has to be on the table before we start on the thing. You want it bored out? Wait on buying the piston till u hear from us. These requirements pertain to buick v/8.
     
  9. Storm1

    Storm1 Silver Level contributor

    Mike, this happened 2yrs ago. Larry was suggesting before I put my new build in (see: https://www.v8buick.com/index.php?threads/my-350-build-getting-closer-need-some-advice.350594/) that I check the trans to make sure it wasn't the root cause of failure.

    I definitely don't want to do this again!
     
  10. mikethegoon

    mikethegoon Well-Known Member

    OK let me check it out then. Nope. Can't see that either.
     

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