Nissan 370Z Forum  

Cmak clutch bleed, 1/2 inch play, not coming up

Hi forum, Just finished a Zspeed clutch install with the cmak. Been trying to bleed it for over an hour. Issue is, when I press the clutch pedal down, it

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain


Like Tree9Likes
  • 3 Post By NissanTracker
  • 3 Post By JARblue
  • 2 Post By NissanTracker
  • 1 Post By Joe@ZSpeed

Reply
 
LinkBack Thread Tools Display Modes
Old 08-24-2020, 06:59 PM   #1 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default Cmak clutch bleed, 1/2 inch play, not coming up

Hi forum,

Just finished a Zspeed clutch install with the cmak. Been trying to bleed it for over an hour. Issue is, when I press the clutch pedal down, it comes back up 95% of the way. There is a very small amount of play that I have to pull the clutch pedal up manually. Any ideas?

I upgraded to the wilwood master cylinder and measured the OEM length with calipers and set it to the wilwood. Pedal distance from the floor looks exactly like I had it before, almost level with the brake pedal

Last edited by NissanTracker; 08-24-2020 at 08:31 PM.
NissanTracker is offline   Reply With Quote
Old 08-24-2020, 08:06 PM   #2 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Tried bleeding again for a bit... Same thing. I'm using the technique as if I were bleeding brakes.
NissanTracker is offline   Reply With Quote
Old 08-24-2020, 09:18 PM   #3 (permalink)
Ronin Samurai - Assassin
 
Rusty's Avatar
 
Join Date: Dec 2011
Location: Fayettenam,Pennsyltucky
Age: 68
Posts: 35,172
Drives: 2011 Nismo GM 6M
Rep Power: 2684437
Rusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond reputeRusty has a reputation beyond repute
Talking

OEM or RJM clutch pedal assy?
__________________

浪人 - 殺し屋
"The Difficult Anytime, The Impossible By Appointment Only"
http://www.the370z.com/members-370z-...o-journal.html
Rusty is offline   Reply With Quote
Old 08-25-2020, 09:18 AM   #4 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Quote:
Originally Posted by Rusty View Post
OEM or RJM clutch pedal assy?
OEM pedal assembly
NissanTracker is offline   Reply With Quote
Old 08-25-2020, 09:27 AM   #5 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Talked with Joe this morning. Mentioned that I probably just need to adjust the master cylinder on the clutch assembly. Probably off by a half a turn or something. I'll give that a whirl and check back.

FYI. I posted this yesterday because Zspeed closed before I could ask Joe. Figure someone here may have ran into it.
NissanTracker is offline   Reply With Quote
Old 08-25-2020, 05:33 PM   #6 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

So found a thread on the Cmak review and OP was kind enough to post a picture with the measurements of the Fork to tranny. I measured this myself and all looks good. Just the adjustment of the pedal is needed. Here is the original thread:

ZSpeed Performance "CMAK" Review
Rusty, old guy and ZontheRocks like this.
NissanTracker is offline   Reply With Quote
Old 08-25-2020, 08:53 PM   #7 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

So buttoned up everything. Clutch feels like an old mustang clutch I once drove before. Much stiffer than stock... but more deterministic for sure. When it grabs, it just grabs. Not like the dual mass flywheel that "lagged" when grabbing.

***NOTE***
There is some play in the pedal assembly. The pin that goes through the pedal is machined for the Master cylinder "adjustment fork".. but on the pedal side, there is some play. Going to research this... there isn't a sleeve or something that fell out is there?
NissanTracker is offline   Reply With Quote
Old 08-25-2020, 10:20 PM   #8 (permalink)
A True Z Fanatic
 
JARblue's Avatar
 
Join Date: Mar 2011
Location: Austin, TX
Age: 43
Posts: 36,450
Drives: 11 Z34, 98 E36 M3
Rep Power: 2684440
JARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond reputeJARblue has a reputation beyond repute
Default

Get the RJM pedal and dump that OEM garbage. It will fix what ails you

I'll send you an old 2.2 revision for free if a little bit of research doesn't convince you to just buy the latest rev 3.X yourself.
Rusty, old guy and NissanTracker like this.
__________________

2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed |

Last edited by JARblue; 08-25-2020 at 10:22 PM.
JARblue is offline   Reply With Quote
Old 08-26-2020, 09:09 AM   #9 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Quote:
Originally Posted by JARblue View Post
Get the RJM pedal and dump that OEM garbage. It will fix what ails you

I'll send you an old 2.2 revision for free if a little bit of research doesn't convince you to just buy the latest rev 3.X yourself.
yeah, i've heard good things. There is a v4 version for my 350HR available September 10th. I'll have to think about that one. Already plenty deep in $$ with the A-A upgrade and Clutch kit. Maybe a next year mod
JARblue and Rusty like this.
NissanTracker is offline   Reply With Quote
Old 08-26-2020, 09:40 PM   #10 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Update

So I forgot about the switch adjustment screw when I was setting the pedal yesterday. I ended up getting it pretty much perfect. The pedal is just slightly above the level of the brake pedal. Using specialtyZ clutch pedal adjustment instructions, I was able to dial it in. Instead of backing out the switch threads completely flush to the nut, I added 2 turns.

Also, to get rid of the play in the pedal, I grabbed some thin sheet metal and added a cut a small piece just to wrap once around the pin. I stuffed it into the pedal hole and greased it up. The pin now is tight in there and removed the play. Will have to see how long that lasts, but a quick DIY fix until I get the RJM pedal next year.

Clutch Pedal Adjustment |
NissanTracker is offline   Reply With Quote
Old 08-26-2020, 09:43 PM   #11 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Also,

The flywheel chatter is minimal. I do hear it once in a while, but a little adjustment on how I engage it will fix that over time. Definitely much stiffer. Just sucks I have to drive a bunch of miles in low rpms. Going to keep it below 3k for 500 miles. Then add more rpms for another 250 miles... Then at about 1k miles, I'll start getting more aggressive.

Thanks again for the input and help!
NissanTracker is offline   Reply With Quote
Old 09-22-2020, 04:40 PM   #12 (permalink)
A True Z Fanatic
 
Joe@ZSpeed's Avatar
 
Join Date: Mar 2011
Location: Ohio
Posts: 1,304
Drives: Nissan
Rep Power: 342999
Joe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond reputeJoe@ZSpeed has a reputation beyond repute
Default

You can adjust the play out with the just the master rod adjustment, No need to add anything in there, Just don't go too far or it can hold pressure in the system (BAD)
NissanTracker likes this.
Joe@ZSpeed is offline   Reply With Quote
Old 06-23-2021, 12:08 AM   #13 (permalink)
Track Member
 
Join Date: Jun 2016
Location: Massachusetts
Posts: 724
Drives: 07' Nismo, 14' Nismo
Rep Power: 29262
NissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond reputeNissanTracker has a reputation beyond repute
Default

Update after 1K miles on the clutch. Thing still grabs like no tomorrow. Since picking up the 14 Nismo, I'm remembering how crappy the old clutch in the HR nismo was. Probably going to look for the CMAK delete for the 14 nismo.

On another note, the 14 nismo only has 16K miles. After a hard drive, i can hear the CSS noises at idle. Errr, annoying. Another purchase from Joe @ZSpeed coming. Working on a TT motor build right now, so I'll wait until that is done.
NissanTracker is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
ZSpeed Stage 1, 2 & 3 Clutch and CMAK Clutch Release System Packs! In Stock! Joe@ZSpeed Drivetrain/Engine 82 05-24-2023 05:09 PM
[WTB] ZSPEED Clutch/Flywheel + CMAK combo dboss Parts for sale (Private Classifieds) 1 03-26-2019 10:53 AM
ZSpeed CMAK Clutch Movement Alteration Kit CSC Delete Joe@ZSpeed Drivetrain/Engine 114 07-17-2018 10:36 AM
[FOR SALE] Brand new ZSP Stage 2 HD Clutch, Pressure Plate, Flywheel, and CMAK CSC Kit embuzen Parts for sale (Private Classifieds) 3 04-05-2017 07:56 PM
How soon to bleed clutch? JCarter Engine & Drivetrain 8 04-28-2014 08:05 PM


All times are GMT -5. The time now is 12:41 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2