87 4+3 problems
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Joined: Jun 2005
Posts: 54
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From: San diego Ca
87 4+3 problems
I just bought an 87 corvette with a 4+3 tranny. on the drive home from the guys house the car was fine and i drove it around for 2 days then a friend of mine got in the car when it was off and started moving the shifter around and pressing on the clutch now there is no pressure to the clutch and the gears keep getting stuck in 2 and 3. so i went under the car and wiggled all the linkage so that it would go back in gear and it did but when i started the car again it jumped forward and the gears got locked in 2 and 3 again. has this ever happened to anyone before and what can i do anyone with ideas please help.
Instructor
Joined: May 2005
Posts: 247
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From: Ramona CA
Clutch slave or master. You better hope it's the slave because the master is a **** to change. Anyways, check the fluid in the master first and if it's dry, something's leaking. Dude that sold it to you probably knew about the problem and just filled the master when needed.
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Joined: Jun 2005
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From: San diego Ca
not dry
no the master wasnt dry just a little low i was thinking that there might be air in the system causing the clutch not to function. My other question is can the clutch not functioning cause the gears to get stuck like they are
Team Owner
Joined: Jun 2002
Posts: 21,510
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From: On a Wisconsin Death Trip
Originally Posted by skelly1
Clutch slave or master. You better hope it's the slave because the master is a **** to change. Anyways, check the fluid in the master first and if it's dry, something's leaking. Dude that sold it to you probably knew about the problem and just filled the master when needed.
Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
Look for signs of moisture on the slave cylinder. You may have to pull back the dust boot to see it. I'd certainly bleed the system while you're at it just to make sure there is no air in there.
Burning Brakes
Joined: Aug 2004
Posts: 1,174
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From: Dunstable MA
St. Jude Donor '05
There is a ten cent plastic bushing at the joint between the clutch pedal and the master cylinder. How's that little devil? Mine popped a few years ago, and I couldn't get the clutch to release unless I stood on the pedal. It did have pressure, but not for the first several inches.
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Team Owner
Joined: Mar 2000
Posts: 83,383
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From: Boston, MA
Originally Posted by boxvette
thanks for all the advice to the one who asked how the pedal feels it just goes straight to the floor no resistance what-so-ever
Melting Slicks
Joined: Feb 2003
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From: Construction Sucks! MI
Cruise-In V Veteran
St. Jude Contributor '03 & '05
i just replaced the master and slave cylinder. it's not that difficult. here's a good article to follow.
http://corvettefever.com/howto/84759/
http://corvettefever.com/howto/84759/
Team Owner
Joined: Jun 2002
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From: On a Wisconsin Death Trip
Originally Posted by boxvette
thanks for all the advice to the one who asked how the pedal feels it just goes straight to the floor no resistance what-so-ever
Originally Posted by scorp508
Make sure the pedal did not come off of the master cylinder pushrod.
Sounds severe...either your pedal came off the linkage or you blew the hose or a seal in the MC. Of course, you'd lose all the fluid if you blew the hose and you said you still had fluid.
Sounds dumb, but did you actually take the cap off the master cylinder to look at the fluid? I mean, are you absolutely positive there is fluid in there and it's filled to the line?
Also, I know when mine went the Slave Cylinder was just so worn it got really hard to shift like yours. It's aluminum and eventually wears out. The only way to check/fix that is to get a new one.
The only other thing it could be is air in the system.
