924Board.org

pyromjm · Joined: 26 Sep 2003 Posts: 154 Location: Cupertino, CA USA

There seems to be some 'slack' somewhere in the drive train. When i am driving and i have my foot off the gas completely or push the clutch in but basically when the engine is not driving the wheels and then i apply the gas it feels like there is a delay somwhere like its picking up the slack before it actually applies force to the tires. Because of this it is kind of jerky when u apply the gas or take your foot off the gas. How do i tell what the problem is ? is it the clutch? the differential? or the transmissioN?
thanks a lot.
-Mike

1982 924 n/a
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1982 924 NA gray/silver with black int.

Paul · Posted: Mon Aug 29, 2005 11:28 am Post subject:

Could be:

the springs in the clutch disk

a broken hub in the clutch

bad cv joints

a loose rear wheel

the differential
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.

pyromjm · Joined: 26 Sep 2003 Posts: 154 Location: Cupertino, CA USA

Could it be related that my clutch is reallyd hard to press in?
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1982 924 NA gray/silver with black int.

Lizard · Posted: Mon Aug 29, 2005 11:36 am Post subject:

doubtful that it is related to the heavy clutch peddle, but my first guess would be broken springs in the clutch disc.
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3 928s,

pyromjm · Joined: 26 Sep 2003 Posts: 154 Location: Cupertino, CA USA

do i need to buy a whole new clutch
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1982 924 NA gray/silver with black int.

Lizard · Posted: Mon Aug 29, 2005 12:05 pm Post subject:

it is one of those while you in there you may as well do the works, if the fingers on the pressure plate look ok you may not need to replace this, however you will need to replace the throw out bearing, guide tube, pilot/needle bearing, and the clutch disc.
not a hard job but time consuming. and the pilot or needle bearing is a must.
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3 928s,

dpw928 · Joined: 02 Nov 2002 Posts: 1860 Location: owasso, ok 74055

Might try cleaning and lubing the the slide tube for the throwout bearing as this could cause both problems.

Dennis
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81 931 5 sp
78 928 5 sp Silver
78 928 AT Euro Black

Smoothie · Posted: Mon Aug 29, 2005 12:52 pm Post subject:

By what you've said so far I'm not convinced that you have much or even any more play than I have in my drivetrain. I think if the center of your clutch disk is shot you should be hearing and feeling an obviously abnormal clunk as you accel/decel. CV joints are probably by far the major source of freeplay. I've disassembled several and seen the trail that the ball bearings leave inside. I'd consider some play normal and not worry unless you're getting a clunk from the clutch area.
The stiff pedal action is probably making it tough to get a smooth clutch engagement.
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"..it's made in Germany. You know the Germans always make good stuff."

'82 924T, US version, dark green metallic, 5 speed Audi 016G gearbox

Gram · Posted: Mon Aug 29, 2005 2:38 pm Post subject:

Sounds like you have a faulty clutch cable..
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'82 924 NA Euro (hers)
'98 Audi A4 TDI (ours)

Mozencrath · Joined: 28 Jul 2005 Posts: 26

I am experiencing the same problem as the thread starter.....Most of the time when releasing the clutch to engage any gear, I'll hear and feel a clunk. Decel is noisy in every gear, and when letting off the gas or getting on it, the car jerks back and forth. 1st gear is the worst-I can't even let off the gas or the car heeves so badly you'll smack your head through the windshield/

Lizard · Posted: Tue Aug 30, 2005 10:03 am Post subject:

Mozencrath, the 87 924S came with rubber pucks in the clutch disc which dissintagrate over time and this is what you are seeing, you will definetly want to repair this, weither you do it yourself or if you dont have the time/drive to do it have a shop do it, any compentent shop could do this for you, however I would recommend that you post on rennlist asking for a list of shops in your area, as most of the guys on this board do it themselves and dont use shops, but rennlist is another story

forums.rennlist.com is the web addy.

but if you do choose to do it yourself we can assist you and you should be able to do the job in a weekend if you are mech inclined at all
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3 928s,

Mozencrath · Joined: 28 Jul 2005 Posts: 26

Lizard · Posted: Tue Aug 30, 2005 10:24 am Post subject:

we will move this back to your topic that you have posted and I will supply you with the info instead of hijacking someone elses thread
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3 928s,

pyromjm · Joined: 26 Sep 2003 Posts: 154 Location: Cupertino, CA USA

so an update on this. You know how the trans kind of sounds like a quiet jet engine when youre cruising. Well when im cruising i hear that but when going at a constant speed (not accelerating or decellerating) it kind of skips it reminds me of a rock skipping on water skkk skkk skkkk skkkk . Sometimes i can get it to stop making noise and thats when i can shift it into the next gear without the clutch really easily. Is this normal or is play in the transmission making contact and losing it because of free play?
thanks,
-Mike
_________________
1982 924 NA gray/silver with black int.

Paul · Posted: Fri Sep 16, 2005 8:24 am Post subject:

Anyone shifting one of these trannies without using the clutch should be looking for a new tranny.
_________________
White 87 924S "Ghost"
Silver 98 986 3.6l 320 HP "Frank N Stein"
White 01 986 "Christine"
Polar Silver 02 996TT. "Turbo"
Owned and repaired 924s since 1977
Porsche: It's not driving, it's therapy.