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  • Fox 5.0 Mustang Tech

Drivetrain Clutch Issues With Pictures

  • Thread starter Thread starter AUBURN1111
  • Start date Start date Mar 27, 2017

AUBURN1111

Founding Member
Oct 17, 2000
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Mobile, AL
Mar 27, 2017
#1
  • Mar 27, 2017
  • #1
Installed a new clutch and pressure plate, while installing the transmission I noticed that even with the clutch cable tightened all the way the clutch fork is hitting the bell housing prior to releasing the clutch. Its not my first clutch install on this car and Ive never had an issue.
1992 5.0L, OEM replacement from Autozone.
 
D

Deleted member 215073

Mar 27, 2017
#2
  • Mar 27, 2017
  • #2
What clutch did you buy? That diaphragm spring doesn't look right to me either. Looks to flat, like the clutch is in it's released position already.
 

AUBURN1111

Founding Member
Oct 17, 2000
560
20
49
Mobile, AL
Mar 27, 2017
#3
  • Mar 27, 2017
  • #3
It's a stock replacement from AutoZone. I had one under warranty so swapped it for new while changing the rear main seal.
 
D

Deleted member 215073

Mar 27, 2017
#4
  • Mar 27, 2017
  • #4
Is that diaphragm spring on the old clutch that flat also?
 

jrichker

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Mar 28, 2017
#5
  • Mar 28, 2017
  • #5
Help for those who have replaced the clutch assembly and are still having problems with adjustment:
The next step doesn't make much sense it you already have the transmission installed, but just for sake of discussion, here it is:
The throwout bearing sits in the clutch fork arm with the wave springs pressing on the rear flange of the throwout bearing.



Major differences between the distance between the flywheel surface and the clutch fingers may require tinkering with the clutch fork pivot ball. Stack your old pressure plate, clutch disc and flywheel up like they were when installed in the car. Tighten down all the pressure plate bolts and measure the distance between the clutch fingertips and the flywheel face.
Too much thickness will cause the clutch fork arm to sit too far back to get the clutch cable on the quadrant. It may even sit against the rear or the bell housing hole for the clutch fork arm. In that case, reduce the pivot ball height.
Too little thickness will cause the clutch fork arm to sit too far forward and bottom out against the front side of the bell housing hole for the clutch fork arm.. This will prevent the clutch from fully disengaging.
In other words, the clutch fork arm should sit positioned midway or a little towards the rear in the bell housing hole for the clutch fork arm when the cable is properly tensioned.
 

Dan02gt

mazing how much gas smell came from that tiny hole
20+ Year Stangneter
Mar 2, 2003
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Greenville, NC
Mar 28, 2017
#6
  • Mar 28, 2017
  • #6
JMGlasgow said:
What clutch did you buy? That diaphragm spring doesn't look right to me either. Looks to flat, like the clutch is in it's released position already.
Click to expand...

Looks like that to me also. Here's a picture of a clutch on LMRs site and you can see how high the fingers are raised on the pressure plate compared to the ones in OPs picture

 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,218
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Massachusetts
Mar 28, 2017
#7
  • Mar 28, 2017
  • #7
First impression....the fingers were "off" as well. Looks like they are already pressed in. With the pressure plate bolted down, the fingers usually spread outwards away from the flywheel as you suck down the bolts. Did you see this happen?
 

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
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polk county florida
Mar 28, 2017
#8
  • Mar 28, 2017
  • #8
Does the clutch fork move up and down?
Maybe it is not set on pivot ball.
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,218
17,901
224
Massachusetts
Mar 28, 2017
#9
  • Mar 28, 2017
  • #9
That clutch fork also looks bent a bit.
 

AUBURN1111

Founding Member
Oct 17, 2000
560
20
49
Mobile, AL
Mar 28, 2017
#10
  • Mar 28, 2017
  • #10
the figures went slightly inward toward the fly wheel when torquing it down. I dont have my old clutch I swapped it out for new under warranty.
 

AUBURN1111

Founding Member
Oct 17, 2000
560
20
49
Mobile, AL
Mar 28, 2017
#11
  • Mar 28, 2017
  • #11
The throw out bearing was installed correctly and the clutch fork is in good shape.
 

General karthief

wonder how much it would cost to ship you a pair
5 Year Member
Aug 25, 2016
27,872
10,542
203
polk county florida
Mar 28, 2017
#12
  • Mar 28, 2017
  • #12
But can you move the clutch fork up and down?
I'm leaning towards the fork is not attached to the pivot ball or the bearing is not attached to the fork correctly,
 

Mustang5L5

That is…until I whipped out my Bissell
Mod Dude
Feb 18, 2001
43,218
17,901
224
Massachusetts
Mar 28, 2017
#13
  • Mar 28, 2017
  • #13
Give this a read. Looks like you aren't the first to experience this with an AZ clutch

http://forums.corral.net/forums/gen...ch-wont-disengage.html#/topics/1274273?page=2
 

AUBURN1111

Founding Member
Oct 17, 2000
560
20
49
Mobile, AL
Mar 28, 2017
#14
  • Mar 28, 2017
  • #14
Thanks for that link, I'm wondering if the disk is not compatible with the pressure plate. You can only install the disk one way when I flipped it around it would not sit flush against the flywheel. How much of a gap should i see when placing the pressure plate on the dowel pins with no bolts, I was showing about 1/4" prior to tightening it down?
 

AUBURN1111

Founding Member
Oct 17, 2000
560
20
49
Mobile, AL
Apr 23, 2017
#15
  • Apr 23, 2017
  • #15
Swapped out the clutch for another, same part # and installed it just like the other and this time no issues. I believe that I had a bad part.
 
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