When is a clutch slave cylinder not a clutch slave cylinder? - ZR-1 Net Registry Forums

XfireZ51 · 04-28-2010

I have the car up on jackstands getting ready for trip to BG in a few weeks. Changed trans fluid, changed spark plugs, looking at exhaust(see thread), and I thought I would pull clutch slave cylinder to do a look see on the plunger sealing. When I went to drain clutch fluid by opening bleeder valve, the barrel of the cylinder rotated. I was pretty sure that meant new slave cylinder. Ordered a DOM replacement from Advance Auto for $74 plus shipping. Hoping it gets here by Friday. In the meantime, =Jeff= took mine apart and although the plunger seal was on correctly, it was pretty loose in the housing and the ridges of the seal were non-existent. I may have found why my clutch engages near the bottom of the pedal stroke. Stay tuned.

PhillipsLT5 · 04-29-2010

Napa may have in stock, Bill B is the expert on slave

GOLDCYLON · 04-29-2010

Bought my last one on Ebay. Very happy made in the UK.

Scrrem · 04-29-2010

Quote:

Originally Posted by GOLDCYLON

Bought my last one on Ebay. Very happy made in the UK.

I was wondering about those. The housing looked like is was cast not stamped, maybe is was just the picture.
Rich

GOLDCYLON · 04-29-2010

Mine I believe was cast. I posted a link in an earlier post with the vendor who was selling the UK version

Sgreg · 05-01-2010

Quote:

Originally Posted by XfireZ51

I have the car up on jackstands getting ready for trip to BG in a few weeks. Changed trans fluid, changed spark plugs, looking at exhaust(see thread), and I thought I would pull clutch slave cylinder to do a look see on the plunger sealing. When I went to drain clutch fluid by opening bleeder valve, the barrel of the cylinder rotated. I was pretty sure that meant new slave cylinder. Ordered a DOM replacement from Advance Auto for $74 plus shipping. Hoping it gets here by Friday. In the meantime, =Jeff= took mine apart and although the plunger seal was on correctly, it was pretty loose in the housing and the ridges of the seal were non-existent. I may have found why my clutch engages near the bottom of the pedal stroke. Stay tuned.

When is a clutch slave cylinder not a clutch slave cylinder ? When it's a knock off and cast material.

-=Jeff=- · 05-01-2010

Quote:

Originally Posted by Sgreg

When is a clutch slave cylinder not a clutch slave cylinder ? When it's a knock off and cast material.

I dunno, my cast slave cylinder works fine..

Sgreg · 05-02-2010

Quote:

Originally Posted by -=Jeff=-

I dunno, my cast slave cylinder works fine..

And it may continue to and it may not. My GM/ACD slave is 18 years old and still works fine. Let me know 18 years from now !!!! I know I hate laying on my back at my age. If I replace mine, I want to do it once.

-=Jeff=- · 05-02-2010

Quote:

Originally Posted by Sgreg

And it may continue to and it may not. My GM/ACD slave is 18 years old and still works fine. Let me know 18 years from now !!!! I know I hate laying on my back at my age. If I replace mine, I want to do it once.

I went through 3 slaves on my 89.. all were AC Delco..

2 leaked from areas other then the seal

I am pretty sure my Cast one was made in Mexico too, just like the DOM ones

XfireZ51 · 05-02-2010

The Advance Auto slave turned out to be a cast piece altho the website illustration showed what appeared to be a DOM version. I had removed the hydraulic hose from the master in order to allow slave cylinder to drop further so I could undo hose at slave. Unfortunately, I ended up stripping threads inside master when I tried reattaching hose. Word to the wise, aligning the fitting with the female outlet of the master cylinder is a bitch without undoing hose clip on firewall and loosening master cylinder attaching bolts. I think there was an issue with the master to begin with. Al at Brakes Plus to the rescue. He had a DOM master sitting around and so we swapped the guts of his old one with mine.
Internals looked pretty good. This time I attached hose at master before bolting master to firewall. Luckily, the threads on the hydraulic hose were not damaged. Al had given me a spare fitting and double flare tool set if I needed to replace male fitting. Now I'm ready to attach rod to clutch pedal and start buttoning things up followed by bleeding system. Should be on the road later today. We'll see if that addresses the low pedal engagement issue I was having. I hope to "fix" my exhaust constriction next and then should be ready for trip to BG. Thanks Al and =Jeff=.

04-28-2010	#1
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,709	When is a clutch slave cylinder not a clutch slave cylinder? I have the car up on jackstands getting ready for trip to BG in a few weeks. Changed trans fluid, changed spark plugs, looking at exhaust(see thread), and I thought I would pull clutch slave cylinder to do a look see on the plunger sealing. When I went to drain clutch fluid by opening bleeder valve, the barrel of the cylinder rotated. I was pretty sure that meant new slave cylinder. Ordered a DOM replacement from Advance Auto for $74 plus shipping. Hoping it gets here by Friday. In the meantime, =Jeff= took mine apart and although the plunger seal was on correctly, it was pretty loose in the housing and the ridges of the seal were non-existent. I may have found why my clutch engages near the bottom of the pedal stroke. Stay tuned.

04-29-2010	#2
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Re: When is a clutch slave cylinder not a clutch slave cylinder? Napa may have in stock, Bill B is the expert on slave

04-29-2010	#3
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: When is a clutch slave cylinder not a clutch slave cylinder? Bought my last one on Ebay. Very happy made in the UK. __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

04-29-2010	#5
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: When is a clutch slave cylinder not a clutch slave cylinder? Mine I believe was cast. I posted a link in an earlier post with the vendor who was selling the UK version __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

05-02-2010	#10
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,709	Re: When is a clutch slave cylinder not a clutch slave cylinder? The Advance Auto slave turned out to be a cast piece altho the website illustration showed what appeared to be a DOM version. I had removed the hydraulic hose from the master in order to allow slave cylinder to drop further so I could undo hose at slave. Unfortunately, I ended up stripping threads inside master when I tried reattaching hose. Word to the wise, aligning the fitting with the female outlet of the master cylinder is a bitch without undoing hose clip on firewall and loosening master cylinder attaching bolts. I think there was an issue with the master to begin with. Al at Brakes Plus to the rescue. He had a DOM master sitting around and so we swapped the guts of his old one with mine. Internals looked pretty good. This time I attached hose at master before bolting master to firewall. Luckily, the threads on the hydraulic hose were not damaged. Al had given me a spare fitting and double flare tool set if I needed to replace male fitting. Now I'm ready to attach rod to clutch pedal and start buttoning things up followed by bleeding system. Should be on the road later today. We'll see if that addresses the low pedal engagement issue I was having. I hope to "fix" my exhaust constriction next and then should be ready for trip to BG. Thanks Al and =Jeff=. Last edited by XfireZ51; 05-02-2010 at 10:42 AM.