Anyone had bad experience with Zpeed heavy duty slave cylinder?

gsg740 · 08-18-2015, 12:25 AM

I heard lots of good reviews about Zspeed heavy duty slave cylinder.
Last week, we tried to install a clutch kit with the Zspeed HDCSC. Everything worked out smoothly. However, after we finished up everything and were trying to bleed the clutch. We found the bleeding screw on the slave cylinder won’t be able to seal the system. We tightened the screw as much as we could, but it leaked when we pumped the clutch pedal. No pressure could be build.

We took a look at the bleeding screw. It seems the system supposed to be sealed by two pieces angled metal surface, much like tightening tapered lug nuts into the wheels.
It’s hard for me to believe the system will be sealed without any rubber ring. Is there anyone else had same issue as I had or did I miss something during the installation?

Thanks a lot!

gomer_110 · 08-18-2015, 06:50 AM

Give Joe at ZSpeed a call and I'm sure he'll get you straightened out. He's a good guy with a vested interest in the Z community.

TreeSemdyZee · 08-18-2015, 12:10 PM

Had mine in since November. No issues so far.
Joe installed the clutch, flywheel and slave at his shop. Definitely call him. He's not someone who like to have things fail. Very conscientious.

JARblue · 08-18-2015, 12:12 PM

You haven't talked to Joe yet? He's the best vendor out there in terms of customer service. These guys are right about him. I would definitely call him asap.

DIGItonium · 08-18-2015, 10:57 PM

I like everything about the ZSpeed HD-CSC along with the new lines, but I wonder how long the bleeder screw will last. My tech had to put in more effort to tighten it hard enough so it won't leak, so there's some slightly worn out edges.

+1 to Joe@ZSpeed. One of the best vendors out there.

eastwest2300 · 08-20-2015, 02:13 PM

yup.. joe is a good dude.. he'll take care of you.

pbs370z · 09-07-2015, 08:22 PM

Correction: My Zspeed CSC did not fail. Was the clutch itself.

see thread: Upgraded Clutch Slave Cylinder Fails Again!

08-18-2015, 12:25 AM	#1 (permalink)
gsg740 Base Member Join Date: Feb 2012 Location: Seattle, WA Posts: 79 Drives: 2011 nismo 370z Rep Power: 13	Anyone had bad experience with Zpeed heavy duty slave cylinder? I heard lots of good reviews about Zspeed heavy duty slave cylinder. Last week, we tried to install a clutch kit with the Zspeed HDCSC. Everything worked out smoothly. However, after we finished up everything and were trying to bleed the clutch. We found the bleeding screw on the slave cylinder won’t be able to seal the system. We tightened the screw as much as we could, but it leaked when we pumped the clutch pedal. No pressure could be build. We took a look at the bleeding screw. It seems the system supposed to be sealed by two pieces angled metal surface, much like tightening tapered lug nuts into the wheels. It’s hard for me to believe the system will be sealed without any rubber ring. Is there anyone else had same issue as I had or did I miss something during the installation? Thanks a lot!

08-18-2015, 06:50 AM	#2 (permalink)
gomer_110 A True Z Fanatic Join Date: Aug 2011 Location: Perrysburg, OH Posts: 17,992 Drives: '11 Nismo #528 GM Rep Power: 36940	Give Joe at ZSpeed a call and I'm sure he'll get you straightened out. He's a good guy with a vested interest in the Z community. __________________ '11 370Z Nismo #528 Fast Intentions \| Stillen \| Motordyne \| Uprev \| CSF \| Zspeed \| Z1 Motorsports \| AST \| Swift \| SPC \| SPL \| Whiteline \| Hotchkis \| Bride \| Schroth \| Robispec \| Cusco \| Nismo \| Volk \| Forgestar \| Hoosier \| RJM '17 Titan Bone Stock

08-18-2015, 12:12 PM	#4 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	You haven't talked to Joe yet? He's the best vendor out there in terms of customer service. These guys are right about him. I would definitely call him asap. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

08-18-2015, 10:57 PM	#5 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 42	I like everything about the ZSpeed HD-CSC along with the new lines, but I wonder how long the bleeder screw will last. My tech had to put in more effort to tighten it hard enough so it won't leak, so there's some slightly worn out edges. +1 to Joe@ZSpeed. One of the best vendors out there. __________________

08-20-2015, 02:13 PM	#6 (permalink)
eastwest2300 A True Z Fanatic Join Date: May 2010 Location: South FL Posts: 90,817 Drives: '16QX70/'21 Supra3.0 Rep Power: 2684549	yup.. joe is a good dude.. he'll take care of you. onzedge likes this. __________________ Infiniti QX70 & Toyota Supra 3.0 Premium

08-18-2015, 12:10 PM	#3 (permalink)
TreeSemdyZee Premium Member Join Date: Dec 2009 Location: Kentuck-IANA Age: 59 Posts: 4,880 Drives: '09 370 & ‘14 Juke Rep Power: 27408	Had mine in since November. No issues so far. Joe installed the clutch, flywheel and slave at his shop. Definitely call him. He's not someone who like to have things fail. Very conscientious.

09-07-2015, 08:22 PM	#7 (permalink)
pbs370z Base Member Join Date: Jul 2010 Location: Near Portland, OR Posts: 92 Drives: '10 370Z, Sport Pkg Rep Power: 3369	Correction: My Zspeed CSC did not fail. Was the clutch itself. see thread: Upgraded Clutch Slave Cylinder Fails Again! TreeSemdyZee likes this. __________________ '10 Z, Sport Pkg 6 MT, Stillen Brake Cooler, Z1 Oil Cooler w/Setrab 25 row/Mocal T-stat, Southbend Clutch w/light wt Flywheel. Last edited by pbs370z; 09-18-2015 at 06:37 PM. Reason: Wrong Info

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