Transmissions and Drivetrain Need help with your trans? Problems with your axle?

HELP! rebuilt 700r4 pressere check numbers inside

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Old 03-25-2012, 12:18 PM
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
HELP! rebuilt 700r4 pressere check numbers inside

gear- press@idle w/tv - press@idle w/o tv - press@hi idle full tv

(Park)- 75 - 125- 110
(reverse)- 120 -200 - 175
(neut) -75 -125 -110
(OD) - 75 -125 - 110
(3) -75 - 125 -125
(2) -175 -175 - 175
(1) - 110- 110 -150
here is my problem so far, 1-2 shift is about right. engine rpm flares a bit between 2-3 and i think 4th is ok, been scared to drive it far enough to really find out. and suggestions from any pros? thanks -art

Last edited by vasquezmrysvll; 03-25-2012 at 02:28 PM.
Old 03-26-2012, 12:38 PM
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
Re: HELP! rebuilt 700r4 pressere check numbers inside

anyone?
Old 03-27-2012, 10:11 AM
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
Re: HELP! rebuilt 700r4 pressere check numbers inside

i guess ill just start throwing parts at it? corvette servo is on the way.
Old 03-28-2012, 07:31 AM
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Car: 1986 IROC
Engine: 355 Tpi
Transmission: 700r4
Axle/Gears: 9 Bolt 3.27
Re: HELP! rebuilt 700r4 pressere check numbers inside

Pressures are a little on the low side, in my experience 2-3 flare is usually from worn 3-4 clutches.
Old 03-28-2012, 10:08 AM
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Join Date: Sep 2007
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
Re: HELP! rebuilt 700r4 pressere check numbers inside

This thing has less than a mile.I hope no clutches are burnt
Old 03-28-2012, 10:55 AM
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Car: 1986 IROC
Engine: 355 Tpi
Transmission: 700r4
Axle/Gears: 9 Bolt 3.27
Re: HELP! rebuilt 700r4 pressere check numbers inside

Well in that case, could be cut or damaged lip seals on the piston, maybe a bad sealing ring on the input shaft. Could also be some garbage in the valve body, the valves are very sensitive to dirt and can get stuck.

Did you build the transmission or a shop?


Dana (Pro Built Automatics) is the true expert on this board. Hopefully he'll chime in here, if not maybe try to PM him.
Old 03-28-2012, 12:38 PM
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
Re: HELP! rebuilt 700r4 pressere check numbers inside

the trans was built and dynoed at the local college.but this was 3 years ago. never been installed till now.
Old 03-30-2012, 04:34 PM
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Join Date: Sep 2007
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Car: 1985 California Iroc
Engine: HSR ZZ4 0411 swapped
Transmission: 4L60E
Axle/Gears: 3.23 posi
Re: HELP! rebuilt 700r4 pressere check numbers inside

i ordered and installed a corvette servo. installed in about 30 mins. now the problem is gone? now it shifts really well.
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