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NEW Clutch not Engaging...Money Pit

UPDATE: I removed the trans and installed the new clutch kit myself but could not get the trans/engine mated together, gave up after 8 hours. My mechanic just put everything

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Old 08-14-2024, 09:05 AM   #1 (permalink)
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UPDATE: I removed the trans and installed the new clutch kit myself but could not get the trans/engine mated together, gave up after 8 hours. My mechanic just put everything back for me, CMAK Delete kit, OEM CMC etc. Fresh fluids, clutch/trans

one thing...car drives great, already $7000 sunk into this. Nightmare is...i felt clutch pedal vibrations randomly already when shifting around 3k-4k rpms...I am worried. It's the same problem from the previous install/failed kit. I contacted JWT when my previous kit and csc failed after only 4k miles and he said this ..."there is an air gap between that sleeve and the disc's hub. So the piston on the CSC was pushed so far forward that it broke the clip off and pushed it onto the disc's hub.* At that point the piston and bearing are no longer contained on the body of the CSC and the hydraulic*seals no longer work.Over travel issues can be caused by problems with the master cylinder*and or the adjustment of the clutch pedal's travel and free play."

Can someone translate this to a noob? Did my previous fresh setup fail because of lack of adjustment to the master cylinder and clutch pedal. Am I now experiencing the same issues and will require adjustment?
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Old 08-14-2024, 12:56 PM   #2 (permalink)
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Originally Posted by Spaghetti999 View Post
UPDATE: I removed the trans and installed the new clutch kit myself but could not get the trans/engine mated together, gave up after 8 hours. My mechanic just put everything back for me, CMAK Delete kit, OEM CMC etc. Fresh fluids, clutch/trans

one thing...car drives great, already $7000 sunk into this. Nightmare is...i felt clutch pedal vibrations randomly already when shifting around 3k-4k rpms...I am worried. It's the same problem from the previous install/failed kit. I contacted JWT when my previous kit and csc failed after only 4k miles and he said this ..."there is an air gap between that sleeve and the disc's hub. So the piston on the CSC was pushed so far forward that it broke the clip off and pushed it onto the disc's hub.* At that point the piston and bearing are no longer contained on the body of the CSC and the hydraulic*seals no longer work.Over travel issues can be caused by problems with the master cylinder*and or the adjustment of the clutch pedal's travel and free play."

Can someone translate this to a noob? Did my previous fresh setup fail because of lack of adjustment to the master cylinder and clutch pedal. Am I now experiencing the same issues and will require adjustment?
There is a sweet spot where you must push up on engine even if transmission looks aligned. Obvioulsy two people are require for this.

As for new clutch vibrations. Give it time to break in. Drive gently for first 1000km (normal shifts etc) Let eveything work in, including CMC and Slave cylinder.
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Old 08-16-2024, 12:08 PM   #3 (permalink)
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Originally Posted by ZoomZ View Post
There is a sweet spot where you must push up on engine even if transmission looks aligned. Obvioulsy two people are require for this.

As for new clutch vibrations. Give it time to break in. Drive gently for first 1000km (normal shifts etc) Let eveything work in, including CMC and Slave cylinder.
I am not convinced this will solve the issue. The vibration was present on the last kit and only worsened. It seems I need to adjust the cltuch pedal and master cylinder rod in some way?

https://blog.specialtyz.com/?page_id=178
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Old 08-16-2024, 12:28 PM   #4 (permalink)
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I am not convinced this will solve the issue. The vibration was present on the last kit and only worsened. It seems I need to adjust the cltuch pedal and master cylinder rod in some way?

https://blog.specialtyz.com/?page_id=178
So you put in a CMAK with an OEM Clutch/PP assembly from Zspeed? which clutch did you buy? I think he only sells the Exedy version for OEM.

And a new OEM Clutch Master? OEM Flywheel?

Adjusting pedal will only change engagement height. It's worth a try. Not sure how it's going to remove vibrations. I could be wrong.

Do you have any other mods, like transmission mount etc?
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Old 08-18-2024, 09:11 AM   #5 (permalink)
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So you put in a CMAK with an OEM Clutch/PP assembly from Zspeed? which clutch did you buy? I think he only sells the Exedy version for OEM.

And a new OEM Clutch Master? OEM Flywheel?

Adjusting pedal will only change engagement height. It's worth a try. Not sure how it's going to remove vibrations. I could be wrong.

Do you have any other mods, like transmission mount etc?
this is the kit I bought, it has the Exedy clutch, comes with an OEM master. No other mods.

I'm only thinking of adjusting pedal/master rod b/c JWT noted my previous kit with same vibration was overextending and stated that such problems can be caused by adjustment of the master cylinder/clutch pedal travel/free play

https://zspeed.com/products/zspeed-p...7%20Q60%20G35S
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Old 08-18-2024, 01:23 PM   #6 (permalink)
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this is the kit I bought, it has the Exedy clutch, comes with an OEM master. No other mods.

I'm only thinking of adjusting pedal/master rod b/c JWT noted my previous kit with same vibration was overextending and stated that such problems can be caused by adjustment of the master cylinder/clutch pedal travel/free play

https://zspeed.com/products/zspeed-p...7%20Q60%20G35S
But that was a whole lot different set up.

Check under the car for broken exhaust hangers (the rubber).

Check loose exhaust points and leaks. ( exhaust did come off for transmission removal)

Check your Transmission mount points etc.

check your drive shaft mount bolts. etc.
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Old 08-25-2024, 07:28 PM   #7 (permalink)
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This has become a $7k money pit. I am thinking I am done with this platform.

I adjusted the master cylinder rod found in the firewall that connects to the pedal. I lessened the length of it and guess WHAT

The intensity of the vibrations have dramatically decreased by 80%. They used to be present at 3k+ rpm shifts, now I can rev up to 3200-3300rpm without vibrations.

Problem is...they are still present!!!!!!!!!

We are onto something though. This has lessened the throw/travel I believe. How can i further decrease the throw and travel even more?
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