| [GMCnet] A Tranny Problem [message #84160] |
Wed, 12 May 2010 00:36  |
Gary Berry
Messages: 1002
Registered: May 2005
Karma:
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Senior Member |
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A couple of weeks ago Larry and I replaced the transmission in his
76 PB. When we fired up the engine, there was a lot of clanging and
banging. We turned the engine off, and there was a sound like a turbo
was spinning down. It looks like we might have destroyed the pump.
When we installed the new trans, the torque Converter (TC) was as far
into the case as we could get. When we installed the trans, the TC was
up against the flexplate. We turned them separately from each other to
align the flexplate to TC bolt holes. Evidently there needs to be more
room between the TC and the flexplate when installing, but how do you
get more room?. I removed the new trans today. Both the original trans
and the new trans are sitting side-by-side with the TCs as far into
the case as I can get them. I took a straight edge and laid it across
each of the cases and measured to one of the bolt holes on the TC.
They both measured at 1". So, I'm confused. My question is how far
from the flexplate is the TC when you bolt up the trans to the engine
block? Also, is there a good transmission fellow in the Pacific
NorthWest that works on the 425 trans? I have 17 days to get this
running and movable. If I don't have a place to go by Saturday, then
I'm reinstalling the old one (it worked OK, but the fluid was turning
brown). If that doesn't work, Larry is having the local wrecking yard
come out and pick this up and take it away.He's done. I'm just trying
to save it. Let me know.
--
Gary and Diana Berry
73 CL Stretch in Wa.
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