Honda CR-Z Hybrid Car Forums banner
161 - 180 of 180 Posts

·
Registered
Joined
·
10 Posts
Last week I installed a 04 civic clutch master cylinder. All I had to do was swap the rods. It performs a lot better but if you take it up to 6k and speed shift it doesn't bark second it takes a half second to slide into gear.

I used to own a 04 civic and I could chirp second no problem but not the CRZ.

So I'm thinking that maybe the slave cylinder is causing this.
 

·
Registered
Joined
·
464 Posts
~swap the rods~speed shift it doesn't bark second it takes a half second to slide into gear~could chirp second no problem but not the CRZ.

So I'm thinking that maybe the slave cylinder is causing this.
Do you have pictures of the rods? I think I know what you mean but I've never dissembled a clutch master cylinder (only replaced).

Bark second? Half second to slide into gear? Are you saying the Civic clutch master cylinder has helped, hindered, or narrowed down the problem to specifically the CDV?
 

·
Registered
Joined
·
10 Posts
Sorry I don't have any pix. The Civic CMC had a shorter rod (it's what attaches to the pedal), easy swap to the longer rod from the CRZ.

With out a doubt it shifts better, more consistent clutch engagement and I don't find the rpm's hanging up like before. But if I am aggressive 6k rpm shift, instead of hitting the gear it slides into gear like an auto trans would.

I know that newer Civic owners and s2000 owners have complained about the slave cylinder, almost tempted to by another one for our car and see if I can modify it (bore it out a little)
 

·
Registered
Joined
·
10 Posts
Just for an update. I bled the clutch system again and it seems a little better, good firm shifts but I still cant chirp second. Is it the IMA system? Do other 6m owners chirp second or is this a hybrid thing.
 

·
Registered
Joined
·
1,500 Posts
Just for an update. I bled the clutch system again and it seems a little better, good firm shifts but I still cant chirp second. Is it the IMA system? Do other 6m owners chirp second or is this a hybrid thing.
uhm..i know this may be obvious so sorry for asking but you are turning off vsa right? also i cant remember whether or not i cud do that in stock form. certainly with the hpd kit yes but it is not so easy to shift quickly from 1st to 2nd. i do need a stronger clutch tho
 

·
Registered
Joined
·
10 Posts
Yeah, VSA off. Part of the problem for me is the Throttle body delay. Its impossible to time your shift. Last week I was testing out a BRZ, and I wasn't even trying to bark second, but did it twice in the first 2min of driving. I think cause I subconsciously shift more aggressive in the CRZ. I'm buying a pump to bleed the system maybe there is still air? Or of course I could install a supercharger:thumbsup:
 

·
Registered
Joined
·
593 Posts
Did you buy all of these up to make these ;) They are backordered, need to replace my master cylinder and can't find one anywhere.
hey, i actually have a used non-CDV clutch master i bought off another user here with the intent of deleting the CDV. i never had a chance to install it given i've gotten married, moved twice, and have a baby on the way now since i've picked this part up lol... in the mean time i've just gotten used to the CDV and have had to put other priorities ahead.

i'll sell it at the same price i bought it for if interested. just PM me. $50 used
 

·
Registered
Joined
·
114 Posts
hey, i actually have a used non-CDV clutch master i bought off another user here with the intent of deleting the CDV. i never had a chance to install it given i've gotten married, moved twice, and have a baby on the way now since i've picked this part up lol... in the mean time i've just gotten used to the CDV and have had to put other priorities ahead.

i'll sell it at the same price i bought it for if interested. just PM me. $50 used
PMed on this if it's still available.
 

·
Registered
Joined
·
1 Posts
Nothing in the slave from what I can tell. It's a straight shot into the cylinder from the hardline port with no restrictions.
Yes, I'm still making these. PM is the best way to contact me about it. Sorry I missed your post earlier; I haven't been keeping an eye on this thread...



Like I said before, your clutch may not be worn down, but instead glazed over. Plenty of clutch material may still be there, but at the friction interface the material is ruined by being smooth and glassy. The CDV can contribute to this because it favors slipping to "protect" the drivetrain, but ultimately it is how the car is driven that determines whether this will occur or not. It can easily get ruined in one driving session, especially with an inexperienced driver... I let my brother drive my car one time and there were a few shifts where I was absolutely cringing. Sometimes, especially since I am supercharged, once the clutch has started to slip it would not grab until you almost completely backed out if the throttle. My brother kept his foot into it a few times... Never doing that again...

I will agree that the CR-Z clutch is barely adequate even for a stock car though. I know I won't be going back to a stock clutch ever...

So to answer your question, yes, the CDV does potentially contribute to more wear since it, by design, allows more slip to reduce shock to the drivetrain. However, the CDV is not a moving part that can get stuck; it is simply a metal diaphragm that flexes under pressure. It's pretty much impossible for it to fail, unless there was so much water in your hydraulic system it caused it to corrode away. You have bigger problems if that were the case...

Anyways, a CDV delete will help prevent some of the excessive slipping from occurring and give you more of that 90's Honda clutch feel. It's not capable of miracles though... You can still ruin your clutch if you tried hard enough...
You still making these ?! I would love one !!!
 
161 - 180 of 180 Posts
Top