ZCar Forum banner

Status
Not open for further replies.
1 - 9 of 9 Posts

·
Registered
Joined
·
29 Posts
Discussion Starter #1
I just rebuilt my clutch master cyl. But everytime I adjust the pushrod for a little play in the clutch pedal, after about 20 min. the play is gone! I've done this 4 x now.

I've checked the hold down nut and it's fine. Any idea's?
Kip
 

·
Registered
Joined
·
1,610 Posts
> I just rebuilt my clutch master cyl. But
> everytime I adjust the pushrod for a little
> play in the clutch pedal, after about 20
> min. the play is gone! I've done this 4 x
> now.

> I've checked the hold down nut and it's
> fine. Any idea's?
> Kip
Did you prefill the master cylinder with fluid before installing it? If not, you are working air out of it and it will take you a while. I've adjusted that rod once and that was enough for me. It ws a real pain..
Phantom
 

·
Registered
Joined
·
3,550 Posts
> Did you prefill the master cylinder with
> fluid before installing it? If not, you are
> working air out of it and it will take you a
> while. I've adjusted that rod once and that
> was enough for me. It ws a real pain..
> Phantom

I always bench bleed before I install. Brake master cyl or clutch. Saves time getting the air out before you fill your system full of it and have to spend all that time at the wheels/slave cyl bleeding out air.

My nickels worth....(you know two cents won't get you anything anymore)

Ken
 

·
Registered
Joined
·
1,610 Posts
Ken, What about Slave?

> I always bench bleed before I install. Brake
> master cyl or clutch. Saves time getting the
> air out before you fill your system full of
> it and have to spend all that time at the
> wheels/slave cyl bleeding out air.

> My nickels worth....(you know two cents
> won't get you anything anymore)

> Ken

Ken,
Could a leaking slave cylinder cause the same symptoms? Or would it be the opposite? When mine went south it was like I had air in the line - Always having to pump the clutch pedal to get enough fluid in line to disengage the clutch .
Phantom
 

·
Registered
Joined
·
3,550 Posts
Re: Ken, What about Slave?

> Ken,
> Could a leaking slave cylinder cause the
> same symptoms? Or would it be the opposite?
> When mine went south it was like I had air
> in the line - Always having to pump the
> clutch pedal to get enough fluid in line to
> disengage the clutch .
> Phantom

I don't recall one ever sucking air back into the system, but I suppose it could happen. Sounds like there is air trapped somewhere, but I can't see where. I would be more apt to blame the master cyl not holding tight (sort of like the brakes when you have a leaky master cyl) than the slave cyl. I had similiar problems and with a healthy diet of AutoX I replaced both at the same time when I got a hint of trouble. All has been well since, over a year.

another nickels worth...

Ken
 

·
Registered
Joined
·
439 Posts
Re: Another clutch question

> I don't recall one ever sucking air back
> into the system, but I suppose it could
> happen. Sounds like there is air trapped
> somewhere, but I can't see where. I would be
> more apt to blame the master cyl not holding
> tight (sort of like the brakes when you have
> a leaky master cyl) than the slave cyl. I
> had similiar problems and with a healthy
> diet of AutoX I replaced both at the same
> time when I got a hint of trouble. All has
> been well since, over a year.

> another nickels worth...

> Ken

Ken or Phantom

I have an 83ZX and I think I may need to replace and/or rebuild my master and slave cylinders too. I seem to have the right amount of clutch pedal free play, but I have to push the clutch pedal about 2 inches before the slave cylinder begins to move. Also, the slave cylinder only moves less than 1/2 inch. Are these indications of a need to replace or rebuild. I'm no expert, at diagnosing symptoms, but can do the work. Thanks for any advice.

Dan in Virginia
 

·
Registered
Joined
·
29 Posts
Discussion Starter #7
Yes,I bled the master cyl.and I have fluid in it.
If you re-read you'll see that I wasn't talking about that. Kip
 

·
Registered
Joined
·
787 Posts
Kip you should go back to the autoparts store and get another master clutch cylinder. Master Cylinders for brakes and clutchs can be defective straight from the factory. Just take it back and tell them it is defective.

I know some people that had to go back several times until they found one that worked.

hope this helps you out.

> Yes,I bled the master cyl.and I have fluid
> in it.
> If you re-read you'll see that I wasn't
> talking about that. Kip
 

·
Registered
Joined
·
3,550 Posts
Re: Another clutch question

> Ken or Phantom

> I have an 83ZX and I think I may need to
> replace and/or rebuild my master and slave
> cylinders too. I seem to have the right
> amount of clutch pedal free play, but I have
> to push the clutch pedal about 2 inches
> before the slave cylinder begins to move.
> Also, the slave cylinder only moves less
> than 1/2 inch. Are these indications of a
> need to replace or rebuild. I'm no expert,
> at diagnosing symptoms, but can do the work.
> Thanks for any advice.

> Dan in Virginia

I have never measured the travel on the slave cylinder, but it would be interesting to see what the stroke is. You may want to consult a repair manual to make sure clutch pedal free play is adjusted correctly. The price of the new master cylinder and slave cylinder decided it for me. I too was not sure which may be my problem, since the price was right, I replaced both.

Ken
 
1 - 9 of 9 Posts
Status
Not open for further replies.
Top