I won the CSM Elim kit at the 2017 Z Nationals, so I figured I would just stick with it, but I wasn't aware of any issues. Thanks for the info. I'll have ot look it to it a little more.

I was an early adopter of the Z1 CSCEK. I went through 4 cylinders in about 50K miles. Had external plastic shell leak as well as internal seals leak. Z1 only replaced the first one at their expense. The last three I paid for out of pocket. I purchased the ZSpeed CMAK a few months back to replace it.

This can be clutch related, Do you have issues getting into any other gears? 1st/Reverse?
Is you shiter hard to move into gear sitting still?

JWT disk is sorta heavy which adds centrifugal weight to the disk, which in turn leads to the syncros having a harder time slowing down to shift.

Yea, actually I do have issues getting into reverse sometimes

Do you have to force the shifter into 1st gear sitting still? Does it grind going to reverse?

Have had to force into reverse a couple of times. Never any grinding though.
Have had an issue going into 1st maybe once. Didn't try to force it in, just went into a couple of other gears first, and it went in just fine after that.

If you have to force it... that's a bad sign. Check the guide plate. Super easy to do. And super easy for a shop to screw up. Best of luck :driving:

They may have replaced gear box oil to a different viscosity.

Changing gear box oil is usually done when clutch is replaced.

On the JWT clutch you need to ensure that the fingers of the pressure plate are not hitting the center of the clutch disk at full stroke (pedal on floor) I have seen quite few of the JWT have interference issues when new. If the pressure plate fingers hit the disk when you have the pedal to the floor it can cause shifting issues and cause gear grinds.

You can normally tell this is happening at idle as well, if you push the pedal all the way to floor you can normally hear it scrape a little and can also cause it to be hard to get into gear. if you let up a little it will go right into gear.

Thanks for the info, Joe. I'll try and check it out tomorrow and see what the issue is. I really appreciate your input.

Hey joe,

This finger contact to the clutch disc is what you mean about clutch overstroke im guessing? I emailed you yesterday about a similar symptom. Mine also can be hard to get into first/reverse at a stop, i can remedy this by shifting into 2nd then back into first.

Beau

Your issue sounds more like a disk is not sliding smoothly on the input shaft upon release or there is possibly some material transfer from one of disk, Could also be a trans issue causing that. The overstroke could happen with the OS giken if you do not have a pedal stop and the fingers may hit the top disk. Most twins triples will require a pedal stop to prevent this.
They way to set up a twin is to find the point at which the clutch is fully released on the down stroke, at this point make a pedal stop that will limit any further travel so you do not over stroke it.