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Clutch Fork, Throwout Position

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Old Aug 16, 2014 | 10:28 AM
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Chinaski's Avatar
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St. Jude Donor '14
Default Clutch Fork, Throwout Position

Getting ready to drop my new motor in, but have a few questions regarding clutch, trans etc.


Motor is on a cradle on the floor. Flywheel, clutch and pressure plate installed. Trans slips in no problem (Muncie)

Clutch is a McLeod Super Street. Stock 1.5 inch GM Pivot Ball. GM 621 Bellhousing. Verified the correct position of the (New) Clutch Fork Boot via my AIM


With the transmission OUT, the throwout bearing is touching the fingers on the pressure plate. I know this probably isn't right, but I am thinking once the trans is slipped in the system 'self corrects'.

I have also verified proper install of the throwout, but when you slide the input shaft of the trans into the bearing, it slides out a bit and pivots into the correct position, so I am good there. I guess?

Also, the dust boot on the bell seems to limit the clutch fork movement fairly drastically.
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Old Aug 16, 2014 | 11:58 AM
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Good article on clutch geometry:
http://www.novak-adapt.com/knowledge/clutches_etc.htm

Not sure what this means:
"With the transmission OUT, the throwout bearing is touching the fingers"

Had the same issue with the boot. A little cutting solves it.

Originally Posted by Chinaski
Getting ready to drop my new motor in, but have a few questions regarding clutch, trans etc.


Motor is on a cradle on the floor. Flywheel, clutch and pressure plate installed. Trans slips in no problem (Muncie)

Clutch is a McLeod Super Street. Stock 1.5 inch GM Pivot Ball. GM 621 Bellhousing. Verified the correct position of the (New) Clutch Fork Boot via my AIM


With the transmission OUT, the throwout bearing is touching the fingers on the pressure plate. I know this probably isn't right, but I am thinking once the trans is slipped in the system 'self corrects'.

I have also verified proper install of the throwout, but when you slide the input shaft of the trans into the bearing, it slides out a bit and pivots into the correct position, so I am good there. I guess?

Also, the dust boot on the bell seems to limit the clutch fork movement fairly drastically.
Reply
Old Aug 16, 2014 | 01:41 PM
  #3  
Chinaski's Avatar
Chinaski
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Joined: Apr 2002
Posts: 26,563
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From: Northridge California
St. Jude Donor '14
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Removed the boot and it is definitely what was pushing the fork against the finger/arms on the pressure plate. I'll try trimming it down later...
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