Clutch replacement questions - Page 4 - ZR-1 Net Registry Forums

LGAFF · 08-04-2009

Should I be able to spin the output shaft still with the trans so close to the bell housing? I would be afraid if I cycle the clutch fork that it might cause the clutch disk to shift?

Thanks.....see Jeff how nice Jim is, maybe a lesson to be learned!

No Cam Emblems for You! Come back 1 year!

XfireZ51 · 08-04-2009

Jim is correct. Shouldn't be an issue. The input shaft should be thru the clutch disc at this point meaning that the splines are set. May want to try tipping trans slightly downward. Don't forget that motor may be tilting back a bit.

LGAFF · 08-04-2009

Quote:

Originally Posted by XfireZ51

The input shaft should be thru the clutch disc at this point meaning that the splines are set.

Thats what I thought, but I was surprised I can now turn the output shaft, when I could not the other day. PITA

XfireZ51 · 08-04-2009

Quote:

Originally Posted by LGAFF

Thats what I thought, but I was surprised I can now turn the output shaft, when I could not the other day. PITA

Is the trans in neutral or in gear?

LGAFF · 08-04-2009

Was in gear, but maybe with all the bumping I knocked it out...I will have to check

Toyvet1 · 08-04-2009

Want to know a way to trash the pilot bushing. Force the trans in ! Ask me how I know.

If you are lucky enough to have someone work the clutch while you guide the trans in. Pumping the clutch will work also. Help to make sure the trans is in gear.

As for Jeffs helpful hints , remember he spends alot of lonely night in the garage alone....

LGAFF · 08-04-2009

Hope to jesus I have not knocked any needle bearings out

A26B · 08-04-2009

Lee,
Just a couple of basics that can cause issues similar to those you are experiencing.

1. Throwout bearing. Did you slide it onto the input shaft housing while the trans was out to make sure it went on OK? There are 2 different sizes of input shaft housings. The throwout bearing for the small size will not go on the large one. Makes installing the trans a real bitch I would imagine.

2. Clutch alignment. Did you use an alignment tool to align with the pilot bearing while cross tightening the pressure plate? If properly aligned, a little wiggle on the tail end while on the alignment studs, some forward pressure & it should slide right in. If you doubt the alignment is still good, back the trans out & check it with the tool again. Can do this with the bellhousing in place.

3. DO NOT try to pull the trans into the bellhousing with bellhousing bolts. If it doesn't go easily, something is not right.

4. If the trans is in gear, you should not be able to turn the output shaft if the splines are in the clutch disc.

5. Before installing clutch, always a good idea to slide the new disc onto the input shaft to insure it slides freely.

Toyvet1 · 08-04-2009

Well it wouldnt hurt to pull the trans out and check the needles .

Reinstall the alinement tool and check the clutch alinement. Lee what are you using for a tool. I have a old input shaft that I have much better luck with if you interested

LGAFF · 08-05-2009

-Did not force the trans on with bolts
-An allignment tool came with the kit, so good there
-Looks like I did knock the shifter into neutral when I was restrapping the trans to the jack.
-The shaft is going into the throwout, so should be good

-Will try pumping the clutch tomorrow.

Thanks for all the help, so many things that are not mentioned when people discuss, great learning experience.

08-04-2009	#31
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch replacement questions Should I be able to spin the output shaft still with the trans so close to the bell housing? I would be afraid if I cycle the clutch fork that it might cause the clutch disk to shift? Thanks.....see Jeff how nice Jim is, maybe a lesson to be learned! No Cam Emblems for You! Come back 1 year! __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

08-04-2009	#32
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,708	Re: Clutch replacement questions Jim is correct. Shouldn't be an issue. The input shaft should be thru the clutch disc at this point meaning that the splines are set. May want to try tipping trans slightly downward. Don't forget that motor may be tilting back a bit.

08-04-2009	#35
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch replacement questions Was in gear, but maybe with all the bumping I knocked it out...I will have to check __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

08-04-2009	#36
Toyvet1 Join Date: Dec 2007 Location: Bloomingdale, Il Posts: 330	Re: Clutch replacement questions Want to know a way to trash the pilot bushing. Force the trans in ! Ask me how I know. If you are lucky enough to have someone work the clutch while you guide the trans in. Pumping the clutch will work also. Help to make sure the trans is in gear. As for Jeffs helpful hints , remember he spends alot of lonely night in the garage alone....

08-04-2009	#37
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch replacement questions Hope to jesus I have not knocked any needle bearings out __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

08-04-2009	#38
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Clutch replacement questions Lee, Just a couple of basics that can cause issues similar to those you are experiencing. 1. Throwout bearing. Did you slide it onto the input shaft housing while the trans was out to make sure it went on OK? There are 2 different sizes of input shaft housings. The throwout bearing for the small size will not go on the large one. Makes installing the trans a real bitch I would imagine. 2. Clutch alignment. Did you use an alignment tool to align with the pilot bearing while cross tightening the pressure plate? If properly aligned, a little wiggle on the tail end while on the alignment studs, some forward pressure & it should slide right in. If you doubt the alignment is still good, back the trans out & check it with the tool again. Can do this with the bellhousing in place. 3. DO NOT try to pull the trans into the bellhousing with bellhousing bolts. If it doesn't go easily, something is not right. 4. If the trans is in gear, you should not be able to turn the output shaft if the splines are in the clutch disc. 5. Before installing clutch, always a good idea to slide the new disc onto the input shaft to insure it slides freely. __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

08-04-2009	#39
Toyvet1 Join Date: Dec 2007 Location: Bloomingdale, Il Posts: 330	Re: Clutch replacement questions Well it wouldnt hurt to pull the trans out and check the needles . Reinstall the alinement tool and check the clutch alinement. Lee what are you using for a tool. I have a old input shaft that I have much better luck with if you interested

08-05-2009	#40
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch replacement questions -Did not force the trans on with bolts -An allignment tool came with the kit, so good there -Looks like I did knock the shifter into neutral when I was restrapping the trans to the jack. -The shaft is going into the throwout, so should be good -Will try pumping the clutch tomorrow. Thanks for all the help, so many things that are not mentioned when people discuss, great learning experience. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359