5th Gear grind after maintenance

Joe@ZSpeed · 10-02-2019, 10:51 AM

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.

USMCram · 10-06-2019, 08:39 PM

Quote:

Originally Posted by Joe@ZSpeed

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.

beauz · 10-23-2019, 06:54 PM

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

Joe@ZSpeed · 10-24-2019, 08:50 AM

Quote:

Originally Posted by beauz

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.

10-02-2019, 10:51 AM	#1 (permalink)
Joe@ZSpeed A True Z Fanatic Join Date: Mar 2011 Location: Ohio Posts: 1,304 Drives: Nissan Rep Power: 343000	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. USMCram and Asus_ like this. __________________ http://photos.zspeedperformance.com/...ardsize=468x60 Phone *937-506-7224* E-Mail Sales@Zspeed.com www.ZSPEED.com

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10-23-2019, 06:54 PM	#3 (permalink)
beauz Base Member Join Date: Apr 2012 Location: australia Posts: 58 Drives: 09 370Z bs m6 Rep Power: 14	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