Clutch Engagement - ZR-1 Net Registry Forums

Scrrem · 04-03-2010

Ok, just installed my Fidanza FW and sprung hub clutch and I now have a lot of chatter upon engagement. Those of you with spring hub clutches and alumnium FW's, is this due to the nature of the sprung hub clutch and I just need to learn how to drive her or do I have a mechanical problem?

LGAFF · 04-03-2010

I think you have an issue. I wish I knew what the issue might be, but mine makes no noise or chatter at all with the sprung hub.

Hammer · 04-03-2010

Mine doesn't make any chatter either. There is however a noise that could best be described as sounding like a box of rocks under the car. This is due to the aluminum flywheel and is common in most applications.

Does the clutch engage properly and is it smooth operating the pedal?

Hammer · 04-03-2010

You're in a great area to have someone look at your car if your worried about it. Contact Ron Kreigh or maybe Jim Voter. Maybe they'll pipe in too.

Scrrem · 04-03-2010

Yeah, Jim helped me put the clutch in. The only thing I can think of is that maybe I didn't get the FW dowel pin hole widened enough and the FW is not seated on the crank. It felt seated but must not be. My fear is now that the thing is torqued down, I may have distored the FW. CRAP!!! I may be put'n the DM back on

LGAFF · 04-03-2010

Don't panic, it is probably not anything major. I would doubt thats the issue(warped), did you replace the throwout? Mine started to rattle just before it came apart. If it was something major the thing would sound like hell the entire time.

Hammer · 04-03-2010

Quote:

Originally Posted by Scrrem

Yeah, Jim helped me put the clutch in. The only thing I can think of is that maybe I didn't get the FW dowel pin hole widened enough and the FW is not seated on the crank. It felt seated but must not be. My fear is now that the thing is torqued down, I may have distored the FW. CRAP!!! I may be put'n the DM back on

I initially put the flywheel on without opening up the dowel hole. I thought it felt OK going on, but after exchanging emails with Marc, I decided to take it back off and open that puppy up. It did make a difference.

Just hit the track today and all went well.

LGAFF · 04-03-2010

I have a McLeod, whats the scoop on the Fidanza?

Scrrem · 04-04-2010

Quote:

Originally Posted by LGAFF

Don't panic, it is probably not anything major. I would doubt thats the issue(warped), did you replace the throwout? Mine started to rattle just before it came apart. If it was something major the thing would sound like hell the entire time.

Lee,
Yeah, new throw out bearing. The car shift OK, but just the engagement is very chattery.

QB93Z · 04-04-2010

My first suggestion is to verify that the clutch hydraulics are operating properly. If that isn't the problem, we will have to pull the clutch and flywheel again.

Jim

04-03-2010	#1
Scrrem Join Date: Feb 2009 Location: Alexandria, Virginia Posts: 1,469	Clutch Engagement Ok, just installed my Fidanza FW and sprung hub clutch and I now have a lot of chatter upon engagement. Those of you with spring hub clutches and alumnium FW's, is this due to the nature of the sprung hub clutch and I just need to learn how to drive her or do I have a mechanical problem? __________________ 1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member

04-03-2010	#2
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch Engagement I think you have an issue. I wish I knew what the issue might be, but mine makes no noise or chatter at all with the sprung hub. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 04-03-2010 at 08:58 PM.

04-03-2010	#3
Hammer Join Date: Apr 2006 Location: Ideho Posts: 2,653	Re: Clutch Engagement Mine doesn't make any chatter either. There is however a noise that could best be described as sounding like a box of rocks under the car. This is due to the aluminum flywheel and is common in most applications. Does the clutch engage properly and is it smooth operating the pedal? __________________ [I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I]

04-03-2010	#4
Hammer Join Date: Apr 2006 Location: Ideho Posts: 2,653	Re: Clutch Engagement You're in a great area to have someone look at your car if your worried about it. Contact Ron Kreigh or maybe Jim Voter. Maybe they'll pipe in too. __________________ [I][FONT=Comic Sans MS]John Boyd[/FONT][/I] [I][FONT=Comic Sans MS][SIZE=1]Ideho[/SIZE][/FONT][/I] [FONT=Comic Sans MS][SIZE=1][I]2015 ZL1 [/I][I]Camaro #1121 BLACK/BLACK 6 SPD (540 RWHP)[/I][/SIZE][/FONT] [I][FONT=Comic Sans MS][SIZE=1]1991 ZR-1 #458 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK 72[/COLOR]k miles ([B][COLOR=red]SOLD[/COLOR][/B]) 1991 ZR-1 #473 [COLOR=red]RED/[/COLOR][COLOR=black]BLACK [/COLOR]37k miles ([B][COLOR=red]SOLD[/COLOR][/B])[/SIZE][/FONT][/I]

04-03-2010	#5
Scrrem Join Date: Feb 2009 Location: Alexandria, Virginia Posts: 1,469	Re: Clutch Engagement Yeah, Jim helped me put the clutch in. The only thing I can think of is that maybe I didn't get the FW dowel pin hole widened enough and the FW is not seated on the crank. It felt seated but must not be. My fear is now that the thing is torqued down, I may have distored the FW. CRAP!!! I may be put'n the DM back on __________________ 1990 Bright Red Coupe #608 380 Stroker, Ported Heads/Intake/Housings/TB Haibeck Secondary Delete Chip / Pete's Cams George Braml Intake / FIC Injectors Coated SW Headers / Corsa Bill Boudreau B/B ZF6 / Viper 4.10 gears Ron Davis Radiator Pioneer AVIC-Z140BH NAV Fikse FM5's 285 / 335 / C6 Brakes WAZOO Member

04-03-2010	#6
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch Engagement Don't panic, it is probably not anything major. I would doubt thats the issue(warped), did you replace the throwout? Mine started to rattle just before it came apart. If it was something major the thing would sound like hell the entire time. __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 Last edited by LGAFF; 04-03-2010 at 10:48 PM.

04-03-2010	#8
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Clutch Engagement I have a McLeod, whats the scoop on the Fidanza? __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

04-04-2010	#10
QB93Z Join Date: May 2007 Location: Westminster, Maryland Posts: 3,687	Re: Clutch Engagement My first suggestion is to verify that the clutch hydraulics are operating properly. If that isn't the problem, we will have to pull the clutch and flywheel again. Jim __________________ If it isn't fun, you aren't doing it right! 1990 Black ZR-1 - sold 1993 Quasar Blue ZR-1 1994 Competition Yellow ZR-1 1995 Dark Purple ZR-1 Maryland State Coordinator WAZOO Member