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slaves and masters

Printed From: West Coast Fieros
Category: Technical Topics Forum
Forum Name: Technical Questions and Discussions
Forum Description: Got a technical question about your fiero? ask it here.
URL: http://www.westcoastfieros.com/forum/forum_posts.asp?TID=1839
Printed Date: 24 April 2025 at 9:22am
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: slaves and masters
Posted By: marcelvdgn
Subject: slaves and masters
Date Posted: 06 May 2010 at 2:44am

No its not a game .... or ?????? but

Whats the slave of choice on an 85 2m4 with the isuzu 5 speed

Need to get a good one or a new one

Any advise will help in regard to cost and source.

will be checking lordco tomorrow

thanks



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Marcel 86SE V6 Auto
85SE V6 Auto
85 2m4
soon to be sleeper 3.8sc 5 speed



Replies:
Posted By: Dr.Fiero
Date Posted: 06 May 2010 at 7:13am
There can be...  only one...

And they're NLA from Lordco.

Give me a call though, as I just 'happen' to have what you need.  :)



Posted By: Capt Fiero
Date Posted: 06 May 2010 at 7:44am

 

 Yep you have no choice the only slave that will work on an Isuzu is the Isuzu Slave, and the good doctor just happens to have bought a few of them.



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Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.


Posted By: Patrick
Date Posted: 06 May 2010 at 12:39pm

Marcel, PM sent.

(No, I haven't got one to sell.  )

 



Posted By: Romeo
Date Posted: 06 May 2010 at 7:15pm

Speaking of slave cylinders, just finished doing a bleed yesterday, and after making it worse, I think I've only gotten it as stiff as what it was when it started (Not the brick wall it was when David and I installed my new clutch, sadly...)

This is the procedure listed on AllData:

  1. Fill supply tank with suitable brake fluid.
  2. Remove floor mat or any other object which may impede full travel of clutch pedal.
  3. Back out bleed screw on slave cylinder until fluid can be pumped out (approximatel 1/2 turn).
  4. Depress clutch pedal fully, then apply three short, rapid strokes.
  5. Release pressure to allow clutch pedal to return quickly to its stop.
  6. Repeat steps 2 and 3 until all air has been released from bleed screw.
  7. Close bleed screw immediately following last downward stroke of pedal when air bubbles no longer appear.

    Is that correct?


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Never shift into reverse without a back-up plan.


Posted By: Capt Fiero
Date Posted: 06 May 2010 at 8:21pm

Nope that is WAY overcomplicated.

    Park car nose up on a slanted driveway.  Flat will work, but slanted is better.

      Block both passenger side wheels

       Use the stock jack at the stock lift point to jack up car, front wheel will come up first, keep jacking until the rear wheel just starts to leave the ground.

      Open master, fill it to the brim, open slave cylinder port. 

              Now for the hard part.

   Go have a beer, smoke, fake sugar, whatever.  

Keep an eye on the clutch master, making sure it does not go empty.

This is what is called a gravity bleed.  It can be done with one person, in a relaxing manor.

        Let the master go down to about 1/4 full, then replace the bleeder screw and top up the master.   Gently get into the car and test the pedal, if it is firm enough, you are done, if not, give it one more round of bleeding.  

             It really is much more simple than it sounds the way I typed it out, but this is the procedure I use on ALL the standard trans cars I do and it works awesome, in fact that is how I bled your car out the first time.



-------------
Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.


Posted By: Patrick
Date Posted: 06 May 2010 at 8:35pm

I would add one step to the procedure that Dave has posted.

After opening the slave bleeder valve, grab the slave rod with vicegrips and push the slave piston in as far as you can, and wedge a piece of wood or whatever to hold it there during the gravity bleed.

When the bleed is done, close the bleeder valve and slowly allow the piston/rod to position itself back into the clutch lever on the tranny.

This extra step gets rid of air trapped in the slave itself.

 



Posted By: Dawg
Date Posted: 06 May 2010 at 9:17pm

Normally I would agree with this Patrick, but in this case, the air bubbles should migrate to the bleeder side of the slave automatically because the car is leaned over.

DG

Originally posted by Patrick Patrick wrote:

I would add one step to the procedure that Dave has posted.

After opening the slave bleeder valve, grab the slave rod with vicegrips and push the slave piston in as far as you can, and wedge a piece of wood or whatever to hold it there during the gravity bleed.

When the bleed is done, close the bleeder valve and slowly allow the piston/rod to position itself back into the clutch lever on the tranny.

This extra step gets rid of air trapped in the slave itself.

 



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You dream it up....I'll make it


Posted By: Patrick
Date Posted: 06 May 2010 at 10:29pm

Originally posted by Dawg Dawg wrote:

Normally I would agree with this Patrick, but in this case, the air bubbles should migrate to the bleeder side of the slave automatically because the car is leaned over.

Sure, they "should" migrate.

When bleeding Fiero clutch hydraulics, every little bit helps!

You do it your way, I'll do it mine. And Tristan can decide for himself how he chooses to do it.

 



Posted By: Romeo
Date Posted: 06 May 2010 at 11:45pm

GAH, CHOICES?!?! lol

Thanks for the heads up, boys. I will do that tomorrow. I don't suppose anyone has an estimate on how much DOT3 I'll need, do they?



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Never shift into reverse without a back-up plan.


Posted By: Patrick
Date Posted: 07 May 2010 at 12:48am

Tristan, because you won't be sucking air into the system (which necessitates yet more bleeding) using the gravity bleed method, you shouldn't need a lot of fluid. Obviously you want at least enough to fully flush the system if the old fluid is cruddy.

Of course, this is also based on the assumption that your connections are tight and your seals are in acceptable condition, thus not allowing air to be drawn into the system as soon as you start using the clutch normally.

There are probably more threads at Pennock's addressing clutch hydraulic issues than any other single tech topic.

Good luck!

 



Posted By: Romeo
Date Posted: 08 May 2010 at 11:03am
Mad house. Thanks brothers!

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Never shift into reverse without a back-up plan.


Posted By: Capt Fiero
Date Posted: 08 May 2010 at 11:17am

I should be here from 2pm till 5pm, if you wanted to stop by and I'll help you with the gravity bleed.

 



-------------
Capt Fiero
88 Fiero GT 5spd V6
Eight Fifty Seven GT V8 5spd.



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