Author Topic: th350 rebuild problems (maybe?)  (Read 1930 times)

Offline werewolfx13

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th350 rebuild problems (maybe?)
« on: February 12, 2013, 09:22:44 pm »
I finally got around to starting the rebuild on my th350 for my '76 k20..While installing the new low/reverse frictions and steels I noticed something that doesn't look right...With the transmission facing up, the 4th steel is at the top edge of the planetary housing, and the 4th friction is actually above the planetary..I can't remember and I haven't been able to find any info as to the exact "fit" of the clutches in relation to the planetary, but this really does not seem correct to me. Any ideas?
« Last Edit: February 14, 2013, 09:53:38 am by werewolfx13 »
Chris
'83 Chevy c10 Silverado SWB
'76 Chevy k20 LWB 6.5'x8' Flatbed
“I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.”

Offline Captkaos

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Re: th350 rebuild problems (maybe?)
« Reply #1 on: February 18, 2013, 09:15:21 pm »
Bump, did you figure this out?

Offline werewolfx13

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Re: th350 rebuild problems (maybe?)
« Reply #2 on: February 19, 2013, 12:23:35 am »
I think so, I've not had a chance to start reassembling again, but I found a pocket of metal shavings I missed while I was cleaning, so before taking it down to the car wash I completely disassembled it, and the l/r piston was a real bear to get back out even with 120 psi of air pressure behind it ..I had to pull on it gently with two sets of needle nose vice grips with the air pressure behind it, and it SEEMS like the "tang" wasn't lined up as I pulled it out. I was curious after seeing that so I dropped it back in, and it seemed to seat MUCH deeper after paying close attention to that tang. Tomorrow night I'm going to start reassembly again and that will be the real test. If that was the issue, than that explains why the return spring took so much effort to draw down with my clutch compressor.  :o
Chris
'83 Chevy c10 Silverado SWB
'76 Chevy k20 LWB 6.5'x8' Flatbed
“I know that you believe you understand what you think I said, but I'm not sure you realize that what you heard is not what I meant.”