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 2Likes
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1
Post By trularin
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1
Post By 68 Fastback
05-29-2013, 06:28 PM
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CC Member
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Join Date: Jun 2010
Location: Lewisville,
TX
Cobra Make, Engine: BDR, 302
Posts: 273
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Not Ranked
Clutch Slave
We hadn't been in the Cobra lately, so I fire it up and back out of the garage and into the alley. Push the clutch in and no pressure. Finally get it in gear put it back into the garage and see this.
Talk about the pushrod out of align. I had replaced the slave a couple of years ago and just flushed and bled the system a couple of weeks ago. I haven't had time to crawl underneath but it looks like the pushrod may have broken. Anyone else have this happened?
Thanks.
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05-29-2013, 07:38 PM
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Senior Club Cobra Member
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Join Date: Sep 2000
Location: Holderness, NH, US of A,
NH
Cobra Make, Engine: CSX 4772 old iron FE
Posts: 5,499
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Not Ranked
Looks like it has worn and punched the push rod through the end of the fork.
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05-30-2013, 07:48 AM
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Member of the north
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Join Date: May 2003
Cobra Make, Engine: A Cobra
Posts: 11,207
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Not Ranked
I drilled a tight hole through the arm and put a #8 bolt through to allow a pivot. I then made an adaptor block out of key stock and threaded one end, put the same size hole in the other.
Sorry, I do not have pics.
Hope this helps.
__________________
I'm a writer, feed the artist and buy a book.
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05-30-2013, 11:38 AM
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CC Member
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Join Date: Mar 2007
Location: Waco,
TX
Cobra Make, Engine: Lone Star Classics / Roush 427 SR
Posts: 280
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Not Ranked
I have had the pushrod unscrew from the piston on a Willwood slave cylinder a couple of times.
__________________
Roush #1
Lone Star Classics
Roush Edition #01
Roush 427 SR #444
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06-03-2013, 11:01 AM
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CC Member
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Join Date: Jan 2009
Location: Jonesboro,
AR
Cobra Make, Engine: Backdraft 874 solid red Roush 427 small block 515 hp
Posts: 572
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Not Ranked
I just had my clutch bled. Photos would be useful for us that can not do our own wrenching.
Thanks.
I wonder if this has been corrected on newer cars or if a kit is available.
__________________
There were no atheists in the foxholes.
Last edited by rpatton3; 06-03-2013 at 12:05 PM..
Reason: typo
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06-03-2013, 01:05 PM
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CC Member
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Join Date: Aug 2007
Location: Carlsbad,
Ca
Cobra Make, Engine: SPF 2932 with 438 Lykins Motorsports engine. Previous owner of FFR 5452.
Posts: 2,616
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Not Ranked
When you replace the slave, make sure the push rod is pushing straight. Might have to make a new bracket to get the right alignment. I had to on mine.
Actually, on examining the photo a little further, there appears to be two slots where the slave mounts to the bracket allowing for proper adjustment.
__________________
Jim
Last edited by jhv48; 06-03-2013 at 01:07 PM..
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06-03-2013, 02:53 PM
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Average Guy
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Join Date: Sep 2002
Location: Rushville,
IN
Cobra Make, Engine: red Shell Valley, white stripes
Posts: 579
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Not Ranked
Could the clutch fork have been pulled off the ball pivot? If so, perhaps you could push it back on and determine what caused it to be pulled off.
__________________
When I said I wanted to be somebody, I probably should have been more specific...
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06-05-2013, 06:02 PM
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CC Member
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Join Date: May 2005
Posts: 379
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Not Ranked
I just put on my 4th slave tonight (Mazda B2600) since my car was new...hmmm about 4,000 miles and 7 years!  Heat shield was added, fluid annually flushed with the same piss poor result of parts failure from too much heat where the master is located. A poor engineering design. Thank God I can work on my own car and the slave is only $12.99 at advance auto parts.
Never had a pushrod problem and mine is just a mickey mouse piece of threaded rod with a couple of washers...from the factory that way! (But it works).
Cheers ya'll!  |
06-05-2013, 11:02 PM
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CC Member
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Join Date: Jan 2009
Location: Jonesboro,
AR
Cobra Make, Engine: Backdraft 874 solid red Roush 427 small block 515 hp
Posts: 572
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Not Ranked
Is there a list of parts like this so I will know what to use?
I found out by accident rear shocks are VW beetle.
Front tie rods are RX-3, I think.
__________________
There were no atheists in the foxholes.
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06-06-2013, 04:15 PM
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CC Member
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Join Date: Jan 2009
Location: Mooresville,
NC
Cobra Make, Engine: BDR, Stroked small block
Posts: 117
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Not Ranked
I added a heat wrap to my master and slave.
I would love to get a list of parts used (based on car number).
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06-06-2013, 04:35 PM
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CC Member
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Join Date: Jan 2009
Location: Jonesboro,
AR
Cobra Make, Engine: Backdraft 874 solid red Roush 427 small block 515 hp
Posts: 572
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Not Ranked
Parts list
Quote:
Originally Posted by 68 Fastback
I added a heat wrap to my master and slave.
I would love to get a list of parts used (based on car number).
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Amen!
__________________
There were no atheists in the foxholes.
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06-07-2013, 08:32 PM
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CC Member
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Join Date: Jun 2010
Location: Lewisville,
TX
Cobra Make, Engine: BDR, 302
Posts: 273
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Not Ranked
Well I finally got around to replacing the slave and replacing the pushrod with one from Rosehill.
Rosehill Performance Parts
Much better than the cut off bolt and washers that were originally used by Backdraft. Mick was right, the end of the bolt wore down and slipped over. Also it need more adjusting out which I couldn't do with the threads on the old rod all mashed down. The slave over entended and the piston came out.
Works great now. |
06-08-2013, 04:51 PM
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CC Member
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Join Date: Jun 2010
Location: Lewisville,
TX
Cobra Make, Engine: BDR, 302
Posts: 273
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Not Ranked
One thing I thought of AFTER I got everything back together was I should have replaced the rubber hose to the slave with a stainless steel braided hose. Being somewhat AN hose/fitting challenged, does anybody know what size hose and fittings go on the BDR slave and clutch line?
Thanks.
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07-23-2013, 10:23 PM
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CC Member
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Join Date: Oct 2012
Location: Owasso,
Ok
Cobra Make, Engine: Backdraft, Ford Racing 347
Posts: 32
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Not Ranked
I've been having troubles with the clutch getting stuck all the time. Bleeding fixes it for a little bit, but it quickly gets worse again. I suppose leaky slave or master? Would the heat wrap help keep the slave in better condition? Where can i buy this?
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08-08-2013, 08:25 PM
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CC Member
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Join Date: Jun 2006
Location: wellington,
oh
Cobra Make, Engine: BDR #260 w/ 347 stroker, Canfield 195 cc heads, prosystems carb on a VicJr, Comp roller cam
Posts: 225
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Not Ranked
You know...i fought this pedal getting spongie and going to the floor on my BRD #260, heat boiling the brake fluid??? it boils at 475*f...man that is hot...I don't think this is the issue. If it was...you'd have brake issue also...correct? (I shielded the line and master cylinder...still had the problem) Mis-alignment of slave to clutch fork...you bet, but even fixing that it still failed in short order. What fixed mine was the double seal piston on the slave. Yep, it got the standard U cup....and an "O"ring seal. mazda ??? with the bleeder on the top....sweet! it been 3 years and 7000 miles...same slave! all I can say is it worked for me!
__________________
BDR#260...21.6K miles logged as of 4/2018
www.motorheadsohio.com We are an engine machine shop, specializing in crankshafts!
47 years of doing business an going strong! stop on by for a personal tour of the shop
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