[DeTomaso] Clutch Help

Art Stephens artstephens at verizon.net
Wed Jun 23 12:27:59 EDT 2010


Tom,
To reduce the free play,  I would lengthen the push rod at the slave.

Art



----- Original Message ----- 
From: "Art Stephens" <artstephens at verizon.net>
To: <tmshinro at aol.com>; <detomaso at realbig.com>
Sent: Wednesday, June 23, 2010 9:12 AM
Subject: Re: [DeTomaso] Clutch Help


> Tom,
> Too much free play? You might reduce the free play then test drive it till
> everything is good and hot,  like your 10-15 minute drive, and see how 
> that
> works.  If that solves the problem,  check your free play again and if you
> have any,  that may be good enough.  Air may also still be in the system,
> it can be a bitch to get it all out.  If you are using a pressure bleeder,
> bleed it from the opposite direction if you have the attachments. Hang in
> there,  you'll get it!  Let us know what finally solves the problem.
>
> Art
>
>
> ----- Original Message ----- 
> From: <tmshinro at aol.com>
> To: <detomaso at realbig.com>
> Sent: Tuesday, June 22, 2010 8:24 PM
> Subject: [DeTomaso] Clutch Help
>
>
>>
>>
>>
>> I've exhausted my brain on this one so I'm sending out a call for help.
>>
>> I replaced my clutch MC and slave.  I verified the pushrods were set per
>> the book (MC pushrod at 2.95" and slave pushrod at 3.05").  I set the
>> freeplay at 0.100".  I pushed almost 2 reservoirs of clutch fluid through
>> the bleeder (no bubbles).  I ended up having to extend the slave pushrod
>> about a turn and half so the gearbox wouldn't crunch while standstill
>> shifting through the gears with the motor running.   See some space
>> between the pressure plate and clutch disk (measured 0.018") and some
>> smaller space between the clutch and flywheel (couldn't measure).  With
>> the car in gear and the clutch depressed I can move the car by hand (no
>> clutch drag).
>>
>> Here's where it gets weird.   At the start of my test drive, everything 
>> is
>> great.  All gears shift smoothly, clutch engages about half way up the
>> pedal stroke. Drives like it is supposed to.   After I drive around for
>> about 10 - 15 minutes, the clutch won't fully disengage at full stroke
>> (gears won't engage without having to pump the pedal).  After limping 
>> back
>> home and pulling into the garage in 2nd gear, I push the clutch in and it
>> sounds like the clutch is dragging the engine down (again not fully
>> disengaging).
>>
>> I've been struggling with this for over a week!    It is very frustrating
>> because I haven't had any clutch problems for over 20 years.   All ideas
>> and suggestions are welcome and desired.
>>
>> Thanks,
>> Tom
>> #5186
>>
>>
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