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Kool
 
AirtekHVAC's Avatar
 
Join Date: Mar 2012
Location: China Grove, NC
Posts: 1,808
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Brake / clutch

Ok..this is weird...since I redid the brakes, and now, today, put in 1 of my axles...I decided to run her through the gears with the motor running...put it in gear, and the wheels would not turn...gave it gas, and still nothing.... ( remember, she is still on lift bars). The motor did not bog down , or anything.....I thought that perhaps the parking brake shoes might be hanging. Pulled up on the parking brake handle, the wheels start turning, lower it, and the wheels stop again...WTF?

Any ideas?

Looks like I have a parking brake issue, and a clutch issue? Perhaps need to do more bleeding? I'm confused!

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Ron
1978 5sp (#30) project-Wreckscue, 1979 5sp Euro Project
1982 5sp resto project, 1985 Auto S3
1984 Parts car (the fire car) 1987 s4 (parts, or maybe project)
(Yes, I now have 4 project Sharks)
Old 03-30-2014, 05:44 PM
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928 Junkie
 
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Join Date: Apr 2008
Location: Chattanooga, TN 37421
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Ron
The clutch and the gearbox work much differently under load than on stands. The 79 could get 5th on stands but would not hold it under load with wheels on the ground.

Did you pull the driverside rear wheel to check it out the e brake?

The double disc clutch is a royal pain. I have mine on a bench right now just waiting to remove the flywheel and have all of it re surfaced at the same time.

Keep us posted
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Brian Phillips
1979 928 , 5-speed, cork interior
1982 Euro S 5-speed project
1985 928S, auto(sold)1978 Euro 5-speed (found another home)1983 928 s 5 sp short shifter black/black (sold)1982 928 auto (sold)
Old 03-31-2014, 02:27 AM
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Pete R's Avatar
 
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Location: New Hampshire
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You probably don't have an lsd so maybe only 1 wheel was turning and you didn't see it, when you pulled the brakes it switched which wheel was spinning. Otherwise if your car was in gear and NO wheels turned something is horribly wrong in the driveline. Bleeding won't help, if there was air, it would keep your clutch engaged not disengaged.
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1979 928 85 Euro 2v motor,S4 Brakes and suspension, 1988 951 street legal track car(sold)
Neon SRT4 track car
Old 03-31-2014, 02:46 AM
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Quote:
Originally Posted by AirtekHVAC View Post
Ok..this is weird...since I redid the brakes, and now, today, put in 1 of my axles...
Ron, do I understand correctly that you only have one axle installed? That would explain it.
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87 928 S4 Exported for Japan
Old 03-31-2014, 04:48 AM
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Kool
 
AirtekHVAC's Avatar
 
Join Date: Mar 2012
Location: China Grove, NC
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Ok...a little more detail is in order.....

I do not think I have LSD....

BEFORE I touched anything, I could run through all gears, on lift bars, and watch the wheels spin. Clutch would engage, and I could push the brake pedal and make them stop, and the car would shut off, unless I gave more gas or pushed in the clutch.

I changed the clutch master and blue hose, and bled everything, and tested, and it operated as expected. I then removed the rear rotors, replaced the parking shoes and springs, and took out the passenger side axle. Put the axle back in last night, and decided to test, with the results I posted about .

Perhaps I did change up some dynamics, and did not see that only the passenger side was spinning. When I pull the parking brake up, drivers side spins. I'll have to angle a mirror, or get the wife to look at the pass side tonight.

Old 03-31-2014, 10:08 AM
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