Slipping Clutch - 1982-1993 Mustang GT Registry Message Board

88gtconvert · 11-05-2009, 01:05 PM

I have a zoom clutch installed with less than 5,000 miles on it. It is slipping like nobody's business already! I think the rear main seal is leaking - would that cause it to slip, and if so, would the cause reamin if the seal is replaced, or should I plan on a new clutch at the same time?

What else could be causing it to slip with so few miles? Poorly adjusted quadrant?

PLAY400 · 11-05-2009, 06:59 PM

You answered your own question. The rear seal is leaking, oil is getting between the clutch friction plate and flywheel and yes you will need a new friction plate once you replace the seal. The quad is self adjusting and if you followed the procedure it should work fine.

GTvert90 · 11-05-2009, 10:35 PM

Its probably the rear main...

And the quadrant is self adjusting but there known to fail. as long as the cable fully releases tho there isn't a problem there. most likely the rear main...

86gtom · 11-06-2009, 09:38 AM

If you put a zoom quadrant & cable in, the quadrant is no longer adjustable, but the cable is. The others are right rear main will need replaced & flywheel should be resurfaced, along with a new clutch disc. Did you put a firewall adjuster in? If so when installing the cable there is a plastic(rubber) piece on the firewall side of the cable, should be black in color, remove it & file off the tits on the plastic piece so it will slide into the firewall adjuster properly. Hope this helps! Did it to mine 1050 miles ago NO PROBLEMS since. GOOD LUCK!!!

11-05-2009, 01:05 PM	#1
88gtconvert 2010 Donating Member Join Date: Jan 2004 Location: Southern Maryland Posts: 1,344	Slipping Clutch I have a zoom clutch installed with less than 5,000 miles on it. It is slipping like nobody's business already! I think the rear main seal is leaking - would that cause it to slip, and if so, would the cause reamin if the seal is replaced, or should I plan on a new clutch at the same time? What else could be causing it to slip with so few miles? Poorly adjusted quadrant? __________________ 1988 GT Convertible. Best 1/4 mile run so far: 14.44 @ 95.24 BBK=Length shorties, off road H-pipe, flowmasters, smog delete, underdive pulleys. Steeda Short Throw Shifter and Clutch linkage, King Cobra clutch FMS 3.73 rear, FMS 5-lug rear axles, SN/95 spindles with Cobra FDBs LRS 2" specific rate lowering springs Kenny Brown strut tower brace and welded in sub-frame connectors. 1999 VW Beetle TDI 50mpg gas-saving hoopdie 2009 VW Jetta Sportwagen TDI-best mileage to date: 51.4mpg

11-05-2009, 10:35 PM	#3
GTvert90 Senior Member Join Date: Jun 2006 Location: Illinois Posts: 1,044	Its probably the rear main... And the quadrant is self adjusting but there known to fail. as long as the cable fully releases tho there isn't a problem there. most likely the rear main... __________________ MGW short throw shifter UPR X pipe Hedman Shorties 70mm Mass Air Flow Sensor

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11-05-2009, 06:59 PM	#2
PLAY400 Senior Member Join Date: Aug 2001 Location: Winnipeg, Manitoba, Canada Posts: 321	You answered your own question. The rear seal is leaking, oil is getting between the clutch friction plate and flywheel and yes you will need a new friction plate once you replace the seal. The quad is self adjusting and if you followed the procedure it should work fine.

11-06-2009, 09:38 AM	#4
86gtom Member Join Date: Apr 2009 Location: HOPEWELL, VA Posts: 34	If you put a zoom quadrant & cable in, the quadrant is no longer adjustable, but the cable is. The others are right rear main will need replaced & flywheel should be resurfaced, along with a new clutch disc. Did you put a firewall adjuster in? If so when installing the cable there is a plastic(rubber) piece on the firewall side of the cable, should be black in color, remove it & file off the tits on the plastic piece so it will slide into the firewall adjuster properly. Hope this helps! Did it to mine 1050 miles ago NO PROBLEMS since. GOOD LUCK!!!