A General discussion list for Vintage SAABs (92 through 99 and maybe early 900's)

mleon | 1 Apr 2009 04:01

clutch won't bleed

I need some ideas on how I can get my clutch bled on my 73, 96. I am using an Eezy-bleed and have not been able to keep the pressure after bleeding. I have rebuilt two different master and slave cylinders and am having the same problem. I can get some pressure on the pedal, but it bleeds off within two hours. Although it has held with diminished pressure for as long as two days. Once, as a test, I pumped the clutch while still attached to the eezybleed. I noticed that air bubbles headed back toward the eezybleed, then disappeared when I stopped. I didn't think this was an issue, as I figured that air was from above the fluid in the reservoir. I have also replaced the bleeder on one of the slaves and am using a NOS hose.

It was suggested that the cylinder(s) are glazed and I should hone them. However, I read comments that honing aluminum was a no-no. I'm stumped.

In a message dated 3/23/2009 4:04:56 A.M. Eastern Daylight Time, m.hilvers-epUZmem76+ebyly6AaOUig@public.gmane.org writes:

> ...on V-4s the wiring harness to the starter is routed awful close
> to the left side motor mount .

The left motor mount has a small hole for a screw and a clip to fix that wiring harness to the underside of the mount.

--
MH

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Zumaque | 1 Apr 2009 15:45

Re: clutch won't bleed

have you followed the lines everywhere? I had the same problem but finally found where the fluid was pooling under the line leak. If when you are bleeding you can make it squirt it is not likely the master, but air getting in the line. The hint is your description that it diminishes over time, the master works when you work it and while it could become so worn that pressure could bleed back through it, it probably wouldn't have created pressure in the first place if it was that bad.

If it is a master or slave, let Chip re-sleeve it.

----- Original Message -----

From: mleon-YDxpq3io04c@public.gmane.org

To: vSAAB-hHKSG33TihhbjbujkaE4pw@public.gmane.org

Sent: Tuesday, March 31, 2009 9:01 PM

Subject: [vSAAB] clutch won't bleed

I need some ideas on how I can get my clutch bled on my 73, 96. I am using an Eezy-bleed and have not been able to keep the pressure after bleeding. I have rebuilt two different master and slave cylinders and am having the same problem. I can get some pressure on the pedal, but it bleeds off within two hours. Although it has held with diminished pressure for as long as two days. Once, as a test, I pumped the clutch while still attached to the eezybleed. I noticed that air bubbles headed back toward the eezybleed, then disappeared when I stopped. I didn't think this was an issue, as I figured that air was from above the fluid in the reservoir. I have also replaced the bleeder on one of the slaves and am using a NOS hose.

It was suggested that the cylinder(s) are glazed and I should hone them. However, I read comments that honing aluminum was a no-no. I'm stumped.

In a message dated 3/23/2009 4:04:56 A.M. Eastern Daylight Time, m.hilvers <at> kpnplanet.nl writes:

> ...on V-4s the wiring harness to the starter is routed awful close
> to the left side motor mount .

The left motor mount has a small hole for a screw and a clip to fix that wiring harness to the underside of the mount.

--
MH

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Change settings via the Web (Yahoo! ID required)
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mleon | 1 Apr 2009 18:29

Re: clutch won't bleed

I have experienced no pooling of fluid (or leaks anywhere) and when I just ran air in the system, I could not hear any hissing of air escaping.

-----Original Message-----
From: Zumaque <zumaque-rphTv4pjVZMJGwgDXS7ZQA@public.gmane.org>
To: vSAAB-hHKSG33TihhbjbujkaE4pw@public.gmane.org
Sent: Wed, 1 Apr 2009 9:45 am
Subject: Re: [vSAAB] clutch won't bleed

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If it is a master or slave, let Chip re-sleeve it.

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Stefan Vapaa | 1 Apr 2009 18:42

Re: clutch won't bleed

What is EZ Bleed?
Explain to me your bleeding procedure please.  I'm thinking that if
your hydraulic parts are OK, then perhaps your bleeding procedure may
be at fault?

On Wed, Apr 1, 2009 at 12:29 PM,  <mleon@...> wrote:
>
>
> I have experienced no pooling of fluid (or leaks anywhere) and when I just
> ran air in the system, I could not hear any hissing of air escaping.
>
> -----Original Message-----
> From: Zumaque <zumaque@...>
> To: vSAAB@...
> Sent: Wed, 1 Apr 2009 9:45 am
> Subject: Re: [vSAAB] clutch won't bleed
>
> have you followed the lines everywhere?  I had the same problem but finally
> found where the fluid was pooling under the line leak.  If when you are
> bleeding you can make it squirt it is not likely the master, but air getting
> in the line.  The hint is your description that it diminishes over time, the
> master works when you work it and while it could become so worn that
> pressure could bleed back through it, it probably wouldn't have created
> pressure in the first place if it was that bad.
>
> If it is a master or slave, let Chip re-sleeve it.
>
> ________________________________
> New Low Prices on Dell Laptops - Starting at $399
>
> 

--

-- 
-STEFAN
http://www.at-speed.com
http://photos.at-speed.com
VSCCA comp #374
VRG comp #97

------------------------------------

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mleon | 1 Apr 2009 18:53

Re: clutch won't bleed

EZ Bleed is a bleeding system that works off tire pressure. You hook it to a spare tire, with about 14lbs of pressure, which goes to a fluid bottle. A line from the fluid bottle goes to a cap that fits on to the top of the Lockheed resevoir. It is the same size as the resevior's cap, but has an fitting for the line from the fluid bottle. I then am releasing the bleeder on the slave, with a tube that goes to a glass jar with fluid, so as to eliminate the risk of sucking in air that way. I hold the bleeder open until there are no bubbles in the tube. Shut the bleeder and release the air supply hose from the spare tire. When done, the resevoir is filled to the top of the filler neck. But because of the angle of the master cylinder, there is alwa ys a little airspace back toward the firewall.

-----Original Message-----
From: Stefan Vapaa <turbo-ooAQcTXgxthWk0Htik3J/w@public.gmane.org>
To: vSAAB-hHKSG33TihhbjbujkaE4pw@public.gmane.org
Sent: Wed, 1 Apr 2009 12:42 pm
Subject: Re: [vSAAB] clutch won't bleed

What is EZ Bleed? Explain to me your bleeding procedure please. I'm thinking that if your hydraulic parts are OK, then perhaps your bleeding procedure may be at fault? <*> To visit your group on the web, go to: http://groups.yahoo.com/group/vSAAB/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/vSAAB/join (Yahoo! ID required) <*> To change settings via email: mailto:vSAAB-digest-hHKSG33TihhbjbujkaE4pw@public.gmane.org mailto:vSAAB-fullfeatured-hHKSG33TihhbjbujkaE4pw@public.gmane.org <*> To unsubscribe from this group, send an email to: vSAAB-unsubscribe-hHKSG33TihhbjbujkaE4pw@public.gmane.org <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/

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Stefan Vapaa | 1 Apr 2009 19:11

Re: clutch won't bleed

OK, that all sounds good.  I would suggest following it up with the
traditional two-person method so that the master cylinder has a chance
to move some fluid around.  That way you cover your bases.  But
really,  I feel pressure bleeding is as reliable a method as any.

You say it will lose "pressure" over several hours or days?  By that I
am guessing you mean that when you come back to the car hours or days
later, it has lost the ability to depress the pressure plate before
the pedal hits the floor?  If so, the fluid must be going SOMEWHERE
and there are only so many places it can go:
1. Exterior of the system.  A joint leak for example.
2. Into the area behind the piston seal on the slave cylinder. In
which case it will show up inside the boot or bell housing once a
sufficient amount of fluid has leaked.
3. Into the area behind the piston seal on the master cylinder.  In
which case it will show up inside the boot or inside the cockpit once
a sufficient amount of fluid has leaked.

It sounds like you already know all that though, so I am probably
stating the obvious.

On Wed, Apr 1, 2009 at 12:53 PM,  <mleon@...> wrote:
> EZ Bleed is a bleeding system that works off tire pressure.  You hook it to
> a spare tire, with about 14lbs of pressure, which goes to a fluid bottle.  A
> line from the fluid bottle goes to a cap that fits on to the top of the
> Lockheed resevoir.  It is the same size as the resevior's cap, but has an
> fitting for the line from the fluid bottle.  I then am releasing the bleeder
> on the slave, with a tube that goes to a glass jar with fluid, so as to
> eliminate the risk of sucking in air that way.  I hold the bleeder open
> until there are no bubbles in the tube.  Shut the bleeder and release the
> air supply hose from the spare tire.  When done, the resevoir is filled to
> the top of the filler neck.  But because of the angle of the master
> cylinder, there is always a little airspace back toward the firewall.
>
> -----Original Message-----
> From: Stefan Vapaa <turbo@...>
> To: vSAAB@...
> Sent: Wed, 1 Apr 2009 12:42 pm
> Subject: Re: [vSAAB] clutch won't bleed
>
> What is EZ Bleed?
> Explain to me your bleeding procedure please.  I'm thinking that if
> your hydraulic parts are OK, then perhaps your bleeding procedure may
> be at fault?
>

--

-- 
-STEFAN
http://www.at-speed.com
http://photos.at-speed.com
VSCCA comp #374
VRG comp #97

------------------------------------