[DeTomaso] No Pantera in Reno - My Luck Runneth Out

[Pantdino]

Keep in mind that I know only about 1% as much as most of the guys posting here about this, but it makes sense to me that a new, thicker clutch plate would tend to move the lever arm closer to the slave cylinder.
If the lever arm is positioned on the clutch spline such that it is now jammed against the slave when the slave piston is fully pressed into the bore, you will have no play.

Is that what is going on?

If so, you need to undo the lever arm from the splined shaft and rotate it to the next position away from the slave.

My understanding is that as long as you have SOME play, that is, the system is not preloaded with pressure on the clutch lever at rest, it should be OK.
I think there was some discussion on some past thread that when the clutch / slave heats up it could decrease the free play, but I don't recall if that was finally accepted or just a theory

I'm waiting for Mike to tell me, "WRONG-O, buddy!"  :-)

Jim Oddie


-----Original Message-----
From: Mike Thomas <mbefthomas at comcast.net>
To: 'John Buckman' <jb841 at cox.net>; detomaso at realbig.com
Sent: Wed, Jun 1, 2011 7:15 pm
Subject: Re: [DeTomaso] No Pantera in Reno - My Luck Runneth Out


Thanks for taking the time to do that, that's very interesting.  If the
imensions are as you say, then I may have another problem of which I don't
now.
The clutch does feel to be engaging, but only at the very top of the travel,
uch higher than it used to be.  I have no free play at the top of the
edal, didn't have much before but more than this.  I can only move the
ever arm back about 1.6 mm from the stop.  Even when I completely
isconnect the slave from the lever arm in the bell housing, I don't get any
ore free play there than that.  I've been advised that I should get more
ike 2-2.5 mm.  Not much granted.  I'm going bleed the clutch again and take
t for another drive.
We'll see.
hanks all, this is a great group.
ike  
-----Original Message-----
rom: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
ehalf Of John Buckman
ent: Wednesday, June 01, 2011 11:13 AM
o: detomaso at realbig.com
ubject: [DeTomaso] No Pantera in Reno - My Luck Runneth Out
Mike,
Let's take a few steps back and look at this.  From you description, it
ould appear that the clutch may not be engaging fully.  Do you have any
ree play at the slave cyl adjusting bolt?  Is the clutch arm return spring
nstalled, and is it strong enough to move the clutch arm against the free
lay adjusting bolt stop?  If you do not have any free play at the slave cyl
nd can't adjust any, then you may have to remove the clutch arm and rotate
t one spline.
I have both a Quella T/O bearing (China) and a National boxed Federal Mogul
625 bearing (Mexico) in hand.  The total thickness of the 1625 bearing is
pproximately 0.070" thicker than the Quella bearing.
hat, in itself, should not create a problem.    The center race (the part
hat is pressed onto the T/O 
earing hub carrier) of the 1625 bearing is thinner (narrower) than the
verall thickness of this bearing.
he excess thickness of this 1625 bearing is at the back side of the
earing, toward the transaxle, NOT towards the pressure plate fingers.  The
ctual thickness of the center race is exactly the same (give or take a
hou) as the Quella bearing that I have.  The net of all of this is that the
ace of these two bearings, when installed, are in exactly the same place.
John
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