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Clutch Chatter - Kennedy stage 1 w/ CB superdisc.
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Bug53
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PostPosted: Mon Jul 14, 2025 12:20 pm    Post subject: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Since day one this clutch has been shuddering and chattering upon release. I have shimmed the Bowden tube quite a bit but it only helps a little.
Just how much can this be bowed before I am in a situation where the cable is sawing through the tube?
Have contemplated pulling the engine and putting a Sachs pressure plate in there.
Its also not real pleasureable to drive with aged knees Smile
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volky1970
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PostPosted: Mon Jul 14, 2025 12:31 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Hi,

That happened to me once all of a sudden. I saw the cable had already cut the tube and was getting caught in it.

I tried to put a copper tube on it but impossible since I didn't want to lower the tranny, so I took a worm clamp and tighten it to the point the cut tube would get together.

At least that solved my issue. Been 3 years now.
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jim martin
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PostPosted: Mon Jul 14, 2025 1:38 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

you need to pull the motor and inspect all 3 items carefully .
disc, pp and flywheel .
you will find your answer by looking at the contact areas
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Bobs67vwagen
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PostPosted: Mon Jul 14, 2025 3:20 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

I had a shuttering problem on a 67 bug many years ago, it turned out that the rear most weld on the clutch tube had broken. You might check that- good luck-Bob
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Bruce
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PostPosted: Mon Jul 14, 2025 7:57 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Bug53 wrote:
Its also not real pleasureable to drive with aged knees Smile

Later VWs had a longer lever arm for the cable to pull on. Lengthening your existing one will relieve the stress on your knee.
100mm center-to-center is the factory upgrade arm.
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Bug53
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PostPosted: Tue Jul 15, 2025 1:21 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

jim martin wrote:
you need to pull the motor and inspect all 3 items carefully .
disc, pp and flywheel .
you will find your answer by looking at the contact areas


I had already planned pulling the motor but the reason was to get rid of the Kennedy PP. and put on a Sachs Amartex one I have.

First I'm shimming the Bowden tube with another washer or two and hoping that takes care of it.
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oprn
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PostPosted: Tue Jul 15, 2025 8:16 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

I quit using solid center clutch discs. If your set up is inclined to chatter or grab the solid center disc will bring it to the fore in a heart beat.
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Bug53
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PostPosted: Tue Jul 22, 2025 3:40 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Bruce wrote:
Bug53 wrote:
Its also not real pleasureable to drive with aged knees Smile

Later VWs had a longer lever arm for the cable to pull on. Lengthening your existing one will relieve the stress on your knee.
100mm center-to-center is the factory upgrade arm.


Does this require any geometry change at the pedal??
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ZEKE65
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PostPosted: Tue Jul 22, 2025 7:27 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Long arm worked fine on my 65 with no other changes. The diaphragm pressure plate doesn't need all the travel that the short arm provided.
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Bug53
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PostPosted: Wed Jul 23, 2025 2:56 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

ZEKE65 wrote:
Long arm worked fine on my 65 with no other changes. The diaphragm pressure plate doesn't need all the travel that the short arm provided.


Where did you source the long clutch arm?
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ZEKE65
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PostPosted: Wed Jul 23, 2025 7:52 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Ebay, Clutch cable arm long vw
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chrisflstf
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PostPosted: Wed Jul 23, 2025 8:28 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Weddle has long arms, but only for 20mm shafts. Empi arms are sketchy. Stuff like splines clocked wrong... You can make a long arm yourself. Cut and weld

My long arm with a kep stage 1 , you can push the pedal in easy with 1 hand
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Bug53
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PostPosted: Yesterday 12:53 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

chrisflstf wrote:
Weddle has long arms, but only for 20mm shafts. Empi arms are sketchy. Stuff like splines clocked wrong... You can make a long arm yourself. Cut and weld

My long arm with a kep stage 1 , you can push the pedal in easy with 1 hand


I bought one from J-Bugs Shocked we will see what happens.
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BFB
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PostPosted: Yesterday 5:59 am    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

worn out / weak trans mount can accentuate that too.
so can trying to ease the clutch out too much because your concerned about the clutch chatter / jumping. ive had a couple that did that and they drove way better when I just let the clutch out & go and avoid slippage as much as possible
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Bug53
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PostPosted: Yesterday 12:44 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

chrisflstf wrote:
Weddle has long arms, but only for 20mm shafts. Empi arms are sketchy. Stuff like splines clocked wrong... You can make a long arm yourself. Cut and weld

My long arm with a kep stage 1 , you can push the pedal in easy with 1 hand


I am wondering if this can be swapped with the engine in the car.?
I’m thinking so.
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chrisflstf
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PostPosted: Yesterday 1:49 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

[quote]
I am wondering if this can be swapped with the engine in the car.?
I’m thinking so.[/quote

Maybe, but that damn spring will ruin anybodies day Laughing

I found a 4 inch long Philips screwdriver works the best to get it over the arm
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b-man
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PostPosted: Yesterday 2:29 pm    Post subject: Re: Clutch Chatter - Kennedy stage 1 w/ CB superdisc. Reply with quote

Bug53 wrote:
I am wondering if this can be swapped with the engine in the car.?
I’m thinking so.

There’s hardly any access and once you start you’ll wish you’d just pulled the engine in the first place.
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