Clutch bleeding issue. - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Swamped13 · 12-22-2009, 07:25 AM

Tried searching, came up empty handed

Car is a 91' Coupe Auto.
Just finished the 5spd swap.
Basically, the clutch won't start to bleed. After numerous, and I mean numerous, depresses of the pedal, no fluid is making it's way into the clutch line.
New oem master cylinder & slave cylinder. New oem pedal and bracket.
I know there's a metric shit ton of air in the line, obviously, but after 15 minutes of bleeding, still nothing.
*perplexed*

VNG704 · 12-22-2009, 08:21 AM

If you haven't yet, try visually following the master all the way to the slave looking for a leak. Have someone step on the clutch pedal, this should make pressure forcing the fluid to come out.

***S14DB*** · 12-22-2009, 08:50 AM

What technique are you using to bleed?

g6civcx · 12-22-2009, 09:43 AM

Did you try to install the clutch damper? Search and bypass if you did.

Swamped13 · 12-22-2009, 11:34 AM

No clutch dampner, already found out that it was useless.
Basic bench bleed, using pedal to build up pressure.
Issue is that no fluid is even making its way out of the resevoir into the line to begin with.

g6civcx · 12-22-2009, 11:43 AM

Pump the clutch pedal repeatedly and then hold. While holding the pedal down, loosen the clutch line at the reservoir just a tad and quickly tighten the fitting again.

You will feel some air escape. Now fluid is in the line and will run down to the slave.

Swamped13 · 12-22-2009, 12:04 PM

I'll give it a shot.
I've been working on cars quite a while, kinda hate that i'm perplexed by something as simple as bleeding a clutch... :\

nixad · 12-22-2009, 12:13 PM

After everything everyone else said.. your master is flucked.

Swamped13 · 12-22-2009, 02:05 PM

I'm kinda thinking the master itself is no good, regardless of it being a brand new one from Nissan...
Oh well, back from lunch, have to look at a cel on a CTS (Cadillac technician), then get back on the S13 I suppose
*shrug*

***S14DB*** · 12-22-2009, 02:36 PM

Are you solo bleeding or have help?

Swamped13 · 12-22-2009, 04:14 PM

Found out the issue.
I read on another forum (which I won't mention, just to be polite), that where the marks are to drill for the master cylinder, that you're supposed to cut the grommets in half where the studs on the clutch pedal bracket go.
I followed this... now regretibly.
Those extensions are there for the master cylinder rod for the diaphragm.
Basically, my diaphragm was extended past the inlet hole in the MC resevoir, not allowing fluid to enter the MC.
So I added to oversized bolts to the clutch pedal bracket to act as spacers, now everything is working as it should.
As soon as my starter bolts come tomorrow from Nissan, then I can start the car and enjoy it.
Thanks everyone for the input. Much appreciated

12-22-2009, 07:25 AM	#1
Swamped13 Join Date: Nov 2009 Location: Loo e z an uh Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	Clutch bleeding issue. Tried searching, came up empty handed Car is a 91' Coupe Auto. Just finished the 5spd swap. Basically, the clutch won't start to bleed. After numerous, and I mean numerous, depresses of the pedal, no fluid is making it's way into the clutch line. New oem master cylinder & slave cylinder. New oem pedal and bracket. I know there's a metric shit ton of air in the line, obviously, but after 15 minutes of bleeding, still nothing. perplexed

12-22-2009, 08:21 AM	#2
VNG704 Zilvia FREAK! Join Date: Dec 2008 Location: Wisconsin Posts: 1,209 Trader Rating: (12) Feedback Score: 12 reviews	If you haven't yet, try visually following the master all the way to the slave looking for a leak. Have someone step on the clutch pedal, this should make pressure forcing the fluid to come out. __________________ For Sale:PM me for specifics.

12-22-2009, 08:50 AM	#3
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 18,701 Trader Rating: (2) Feedback Score: 2 reviews	What technique are you using to bleed? __________________ Comments should be taken as Opinions not as Statements of Fact.

12-22-2009, 02:36 PM	#10
*S14DB* AFC #1 Join Date: Oct 2003 Location: 昨晩あなたのお母さんの家 Posts: 18,701 Trader Rating: (2) Feedback Score: 2 reviews	Are you solo bleeding or have help? __________________ Comments should be taken as Opinions not as Statements of Fact.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

12-22-2009, 09:43 AM	#4
g6civcx Post Whore! Join Date: Apr 2004 Location: Virginia, USA Posts: 5,767 Trader Rating: (5) Feedback Score: 5 reviews	Did you try to install the clutch damper? Search and bypass if you did.

12-22-2009, 11:34 AM	#5
Swamped13 Join Date: Nov 2009 Location: Loo e z an uh Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	No clutch dampner, already found out that it was useless. Basic bench bleed, using pedal to build up pressure. Issue is that no fluid is even making its way out of the resevoir into the line to begin with.

12-22-2009, 11:43 AM	#6
g6civcx Post Whore! Join Date: Apr 2004 Location: Virginia, USA Posts: 5,767 Trader Rating: (5) Feedback Score: 5 reviews	Pump the clutch pedal repeatedly and then hold. While holding the pedal down, loosen the clutch line at the reservoir just a tad and quickly tighten the fitting again. You will feel some air escape. Now fluid is in the line and will run down to the slave.

12-22-2009, 12:04 PM	#7
Swamped13 Join Date: Nov 2009 Location: Loo e z an uh Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	I'll give it a shot. I've been working on cars quite a while, kinda hate that i'm perplexed by something as simple as bleeding a clutch... :\

12-22-2009, 12:13 PM	#8
nixad Zilvia Member Join Date: May 2006 Location: Long Island, NY Posts: 163 Trader Rating: (0) Feedback Score: 0 reviews	After everything everyone else said.. your master is flucked.

12-22-2009, 02:05 PM	#9
Swamped13 Join Date: Nov 2009 Location: Loo e z an uh Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	I'm kinda thinking the master itself is no good, regardless of it being a brand new one from Nissan... Oh well, back from lunch, have to look at a cel on a CTS (Cadillac technician), then get back on the S13 I suppose shrug

12-22-2009, 04:14 PM	#11
Swamped13 Join Date: Nov 2009 Location: Loo e z an uh Posts: 35 Trader Rating: (0) Feedback Score: 0 reviews	Found out the issue. I read on another forum (which I won't mention, just to be polite), that where the marks are to drill for the master cylinder, that you're supposed to cut the grommets in half where the studs on the clutch pedal bracket go. I followed this... now regretibly. Those extensions are there for the master cylinder rod for the diaphragm. Basically, my diaphragm was extended past the inlet hole in the MC resevoir, not allowing fluid to enter the MC. So I added to oversized bolts to the clutch pedal bracket to act as spacers, now everything is working as it should. As soon as my starter bolts come tomorrow from Nissan, then I can start the car and enjoy it. Thanks everyone for the input. Much appreciated

Sponsored Links