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  1. BuickSix

    Flex plate

    I get a planetary whine in first gear...goes away in Second. My planet looks good. Does anyone else have this?
  2. BuickSix

    Flex plate

    No problems seen yet. Just putting some seals through it. I had a hard garage shift into reverse cold, so I wanted to look at the low reverse clutch. The wave plate it ok but the frictions are quite worn........to much clearance.
  3. BuickSix

    Flex plate

    Waterdown. I don't think mine was bent, just low quality. I replaced it 15 years ago with a King-O-matic part sourced through work when the engine was rebuilt. With all the work I did at that time it was difficult to nail down the source of the vibration. What had happened was I was coming down...
  4. BuickSix

    Flex plate

    I received my Amazon flex plate.....$100 Canadian dollars. Pioneer FRA-147. It looked good, the ring gear had more meat to it, less holes drilled into it, but it was also flat. My old one and the NA one are slightly bent ....dished, this one was flat. It fit nice on the crank but because it's...
  5. BuickSix

    Flex plate

    My original one is long gone. I've compared the one in the car now with a NA flex plate. The ring gear definitely has high spots on it. I've ordered one from Amazon which I can return easier if I don't like it. I work in the transmission business, back in the day changing flex plates was a...
  6. BuickSix

    Torque converter install

    When it's in the pump all the way you shouldn't be able to get you fingers behind it. When bolting the bell housing bolts, the converter should be a good 1/4 inch off the flex plate.....if its against the flex plate before the trans is on the motor the converter is not in the pump all the way...
  7. BuickSix

    Flex plate

    Is this the correct flex plate for my 87 LC2? I have a vibration, and this one seems warped and out of round. Also, are they 160 tooth or 153? This one is 160. When the starter turns it over it doesn't sound bad, but it doesn't sound good no matter how I shim the starter. Thanks.
  8. BuickSix

    Miss at idle, miss at cruising speed.

    The flex plate can only bolt on one way right?
  9. BuickSix

    Miss at idle, miss at cruising speed.

    The flex plate is correct. It matches what they sell on Gbody parts and Rock auto.
  10. BuickSix

    Miss at idle, miss at cruising speed.

    Ive had my own gauge on it...........17in steady at idle.
  11. BuickSix

    Miss at idle, miss at cruising speed.

    It got a new chain, gears, lifters bearings, oil pump. Cam & crank were polished. Pistons reused. The flex plate was replaced at the time of rebuild. I find it unlikely that it is the wrong one....I could be wrong.....worth checking.
  12. BuickSix

    Miss at idle, miss at cruising speed.

    Reread the post.........I did compression test and leak down.........150 psi across 6 cylinders...+ - 5psi.
  13. BuickSix

    Miss at idle, miss at cruising speed.

    This issue started after the engine was removed for a rebuild. Just a stock rebuild, nothing fancy. The engine has always seemed to have a long crank before it fires but it was doing that before the rebuild. So the problem is a miss at idle that shakes the engine, its not a dead miss as it comes...
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