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Join Date: Dec 2008
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clutch doesnt disengage

hello guys i hope you can help me. after dropping my engine to do my sincros and after installing everything in order, the clutch doesn't disengage. i got the idea that it could be a little bit of rust since i pressure washed the engine and gearbox together after removing. by the way i never did separate the gearbox from the engine and i did all the necessary sincro's change with the gearbox together with the motor. and if it is rust, do you guys have any idea how can i solve the problem without bringing the engine down again? if it is rust its not older than 2 weeks. i appreciate your help....
Old 02-16-2009, 09:37 AM
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will the pedal even go down? Also, did you check the "omega" spring? And if the pedal will go down, is the fork seated on the throwout bearing?

Now this advice is assuming that you got a 930 4 speed trans- if other please specify
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Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 02-16-2009, 10:11 AM
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chris... yes its a 4 speed 930 1979 and clutch and adjustments are all 100%. fork is in bearing and clutch lever is working on the bearing. i have the impretion that it is rust.
Old 02-16-2009, 10:38 AM
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are you saying you could push the clutch down but it still grabs when it is down? Well if it is rust that is causing this- get the car on a partial down hill slope (as if you were going to drive it away) push in the clutch pedal and fire her up in first (I know this sounds bad, but it will work eventually) then drive her around the neighborhood (be gentle) with the pedal down until the clutch decides to let go of the friction disk. Now don't beat its brains out untill you driven the car sto and go for a little while. I know how horrible this sounds- but if this is caused by rust, then this should solve your problem.
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Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 02-16-2009, 12:04 PM
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thank you kris i done what you advised and took 10 metres and waalla. clutch 100% and thanks again
Old 02-17-2009, 10:02 AM
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Last edited by A930Rocket; 02-17-2009 at 12:10 PM..
Old 02-17-2009, 10:21 AM
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Thats awsome sky! thank you 930rocket- and I'm glad it worked- How is the trans with your new synchros?
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Kris @ Tech9
86' 930/GT-40R Sold
94' Rustang GT daily (long gone)
2008 C6/Z51 Corvette
Old 02-17-2009, 11:12 AM
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So you are telling me that even with the clutch pedal depressed you were still able to drive the car around?
I would have never thought a clutch and friction disk could become fused like this, especially from water.
Very Impressive, and great insight!
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Jeremy C.
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Old 02-17-2009, 03:55 PM
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Funny I've got A 79' 930 had the exact same problem. 1 speed bump and she was fine. i guess speed bumps do have a purpose...
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Old 02-17-2009, 05:10 PM
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