Transmission/clutch whine when clutch is NOT pushed in. - ZR-1 Net Registry Forums

oricale · 07-31-2013

Alright all,

I just installed new:

clutch master
clutch slave
clutch line
transmission with 32,000 miles (operated fine when pulled

I start it up and there is a obvious whine.

when i push in the clutch whine goes away.

did not have a whine before.

*possibly a need for more bleeding of the clutch???

WVZR-1 · 07-31-2013

Quote:

Originally Posted by oricale

Alright all,

I just installed new:

clutch master
clutch slave
clutch line
transmission with 32,000 miles (operated fine when pulled

I start it up and there is a obvious whine.

when i push in the clutch whine goes away.

did not have a whine before.

*possibly a need for more bleeding of the clutch???

What pilot bushing/bearing is in the crankshaft?

oricale · 07-31-2013

What about throwout bearing?, How can I check to see if that is the cause?

WVZR-1 · 07-31-2013

I've never done it but I don't know why you couldn't use a stethoscope on the fork and just in the general area of the flywheel-housing and the transmission itself. I would think the stethoscope on the fork would be the first place I'd go.

secondchance · 07-31-2013

http://www.powertorquesystems.com/Co...rvetteMain.htm

If pilot bushing Jim sells solid and fluted.
If TO bearing you are going to have to hunt for awhile - tough to find.

A26B · 07-31-2013

We have the fluted AC Delco bronze pilot bearing too.

http://jerrysgaskets.com/store2/root...roducts_id=780

oricale · 07-31-2013

Jerry,

Dont know if thats the problem,..but cant hurt to have one,

Get me a price for both pilot and throw out bearings.

gbrtng · 07-31-2013

Quote:

Originally Posted by WVZR-1

What pilot bushing/bearing is in the crankshaft?

The pilot bushing is not in play here - all rotating parts are at the same speed (crankshaft, flywheel, tranny input shaft).

oricale · 07-31-2013

Quote:

Originally Posted by gbrtng

The pilot bushing is not in play here - all rotating parts are at the same speed (crankshaft, flywheel, tranny input shaft).

Elaborate sir!,..

WVZR-1 · 07-31-2013

Quote:

Originally Posted by gbrtng

The pilot bushing is not in play here - all rotating parts are at the same speed (crankshaft, flywheel, tranny input shaft).

I saw the NOT after I had posted but left the post as a matter of interest into which was used if any at all, maybe it was the original one and NOT serviced but it's pretty common practice to replace on each removal of transmission by some. Was the flywheel inspected, pressure plate and disc removed for inspection and is the fork attached correctly to the pivot stud.

I also didn't see any mention of what had or hadn't been replaced other than hydraulics and was the transmission the one that was in the car or a replacement from another car with the 32K miles. That's a little vague. If the flywheel housing was removed and the transmission is from another car it may not like the orientation to the center-line of the crankshaft. I've never seen it mentioned when doing anything with an LT5 but what about offset flywheel housing dowels**

** is there dowels?

Just askin'

07-31-2013	#1
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Transmission/clutch whine when clutch is NOT pushed in. Alright all, I just installed new: clutch master clutch slave clutch line transmission with 32,000 miles (operated fine when pulled I start it up and there is a obvious whine. when i push in the clutch whine goes away. did not have a whine before. possibly a need for more bleeding of the clutch??? __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation*

07-31-2013	#3
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: Transmission/clutch whine when clutch is NOT pushed in. What about throwout bearing?, How can I check to see if that is the cause? __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation

07-31-2013	#4
WVZR-1 Join Date: Oct 2004 Posts: 1,889	Re: Transmission/clutch whine when clutch is NOT pushed in. I've never done it but I don't know why you couldn't use a stethoscope on the fork and just in the general area of the flywheel-housing and the transmission itself. I would think the stethoscope on the fork would be the first place I'd go.

07-31-2013	#5
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,704	Re: Transmission/clutch whine when clutch is NOT pushed in. http://www.powertorquesystems.com/Co...rvetteMain.htm If pilot bushing Jim sells solid and fluted. If TO bearing you are going to have to hunt for awhile - tough to find.

07-31-2013	#6
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,373	Re: Transmission/clutch whine when clutch is NOT pushed in. We have the fluted AC Delco bronze pilot bearing too. http://jerrysgaskets.com/store2/root...roducts_id=780 __________________ 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.