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Joined: Feb 2007
Posts: 570
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2007
Posts: 570 |
We just rebuilt an aluminum 1964 Powerglide. Upon completion, we only have First Gear. Second and Reverse are inoperable. We only changed out the band, the clutches/steels, valve body gasket, pump gasket and Front and Rear seals. Has anybody ever experienced this, and if so, what was the remedy?
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Joined: Feb 2007
Posts: 570
Oil Can Mechanic
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OP
Oil Can Mechanic
Joined: Feb 2007
Posts: 570 |
I remedied the problem for the record. There were gaskets in the kit that covered several versions of the Powerglide, and the incorrect gasket was used on the rear pump assembly, thereby blocking off the oil flow to the rear pump, which supplies the fluid to both reverse and high. Moral of the story is, don't rebuild your own transmission!
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Joined: Dec 2001
Posts: 2,142 Likes: 3
ChatMaster - 2,000
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ChatMaster - 2,000
Joined: Dec 2001
Posts: 2,142 Likes: 3 |
Moral of the story is, don't rebuild your own transmission! Been there done that
John
1954 Belair Sport Coupe
1960 2 door Impala Hardtop 348/340HP 4spd
1962 2 door Impala Hardtop 409/409 4spd
1962 2 Door Biscayne Sedan 327/250 Auto
1977 Monza Mirage 305 4 Speed
1988 Celebrity Wagon
2018 GMC Sierra 2500 HD Diesel
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The 1966 and up did not have a rear pump and evidently that is what the gaskets were for. You would thnk they would have a warning packed in with the gaskets.
Actually the rear pump does not cut in until about 40 MPH. Before that the front pump supplies the pressure. When the rear pump cuts in it blocks off the pressure from the front pump. The front pump is sending presure to the rear pump and valve body at all times so the flow must be maintained.
The units with no rear pump can not be push started.
Last edited by Chev Nut; 11/22/14 10:13 AM.
Gene Schneider
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