something wrong with new gearbox?
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Joined: Jan 2010
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something wrong with new gearbox?
i installed a new 700r4 automatic transmission in my 1986 corvette coupe. when i drove i the first 20miles+ it geared just fine as it should, but all of a sudden i felt that it started to slam into gear so i felt the car jolt a little when going into third and its been doing that ever since. But if i accelerate hard it gears as smoth as it should but on a higher speed as expected.
i can drive it fine but im a little worried. Is there something i can do to make it gear more smoothly at lower speeds?. I have adjusted the TV cable as it should so i don`t think thats the problem.
theese are the components i use:
http://www.summitracing.com/parts/TCI-373000/
http://www.summitracing.com/parts/TCI-242800/
i can drive it fine but im a little worried. Is there something i can do to make it gear more smoothly at lower speeds?. I have adjusted the TV cable as it should so i don`t think thats the problem.
theese are the components i use:
http://www.summitracing.com/parts/TCI-373000/
http://www.summitracing.com/parts/TCI-242800/
Drifting
Joined: Jan 2007
Posts: 1,908
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From: Supreme Soviet Peace-Loving Pipple's Kollektive of Seattle Wa
wish i could help here... only 2 times i've had "slam-shift" situations and both were caused by air bubbles in the line pressure. had an air leak in the pump pick-up line. weren't gm trannies tho'.. have you called summit?
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ok thanks. i will call them up today.
the car shifts fine when it gears down from 4th to third and on upshift from 2-3 when i really put the pedal to the metal, but if im loafing around it usually slams into third and the car jolts a bit. It gears at correct speeds so it shouldn`t be the TV cable either. It might be as you say air bubbles in the line pressure or something like that.
the car shifts fine when it gears down from 4th to third and on upshift from 2-3 when i really put the pedal to the metal, but if im loafing around it usually slams into third and the car jolts a bit. It gears at correct speeds so it shouldn`t be the TV cable either. It might be as you say air bubbles in the line pressure or something like that.
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hmm well. i guess it`s the TV-cable that needs correct adjustment. i thought it was adjusted correctly but it`s not. I had help adjusting it the first time and after that i thought it was adjusted correctly but it wasn`t it turns out as i tried it myself yesterday.
Now it gears more smoothly than it did before. I didn`t adjust much, just 1-2 milimeter or so more loose than it was, but allready i se a big improvment in shift feel.
Now it gears more smoothly than it did before. I didn`t adjust much, just 1-2 milimeter or so more loose than it was, but allready i se a big improvment in shift feel.
