Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: fury4speed]
#207792
01/29/09 07:07 PM
01/29/09 07:07 PM
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Joined: Jan 2003
Posts: 27,253 Rio Linda, CA
John_Kunkel
The Erection Connection
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The Erection Connection
Joined: Jan 2003
Posts: 27,253
Rio Linda, CA
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The factory recommends setting the distance between the throwout fork and its pushrod at 5/32". (I use a #21 drill bit as a gauge)
The INTERNET, the MISinformation superhighway
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: fury4speed]
#207794
01/29/09 09:37 PM
01/29/09 09:37 PM
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Joined: Jan 2003
Posts: 5,487 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,487
So Cal
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My preference is to pull the inspection cover and adjust the throwout bearing slightly off of the pressure plate. Adjusting free play to a spec up above @ the pedal may have been acceptable in a new car with new linkage but not for a 40 year old muscle car that has worn linkage... Just my $0.02..
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: John_Kunkel]
#207795
01/29/09 10:56 PM
01/29/09 10:56 PM
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Joined: Jan 2003
Posts: 6,570 San Francisco Ca
SCATPK
master
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master
Joined: Jan 2003
Posts: 6,570
San Francisco Ca
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Quote:
The factory recommends setting the distance between the throwout fork and its pushrod at 5/32". (I use a #21 drill bit as a gauge)
John, can you explain this procedure in a little more detail please?
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: SCATPK]
#207800
02/02/09 10:50 PM
02/02/09 10:50 PM
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Joined: Jan 2003
Posts: 5,791 Hamilton, Ontario Canada
Magnum
master
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master
Joined: Jan 2003
Posts: 5,791
Hamilton, Ontario Canada
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When adjusting clutch linkage 2 things are important.
The throwout bearing should be clear off the pressure plate fingers. Cover off and inspection is the best method here. Advice like 1" freeplay or 1 1/2" freeplay is just a huge saftey net for that adjustment. Major freeplay guarantees the bearing is clear but it's also wasted pedal throw which is important to quick shifting. Once the bearing is clear adding an inch to that just requires you to push in the pedal to disengage the disc. Tight is better. Alot of late model cars do not even run any clearance. Some are even preloaded against the fingers.
The other adjustment which is usually fine unless you have HUGE freeplay or some bad geometry in the linkage is disc clearance. The 0.060 62Max has shown is good. Anymore is just wasted clearance.
69 Super Bee, 93 Mustang LX, 04 Allure Super
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: Kudakidd]
#207802
02/03/09 12:08 PM
02/03/09 12:08 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
.....and replace that cupped rubber washer w/ a metal one. Ehrenberg sells 'em on ebag
And you can still get it from a dealer
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: ademon]
#207804
02/03/09 02:45 PM
02/03/09 02:45 PM
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Joined: Jan 2003
Posts: 9,436 Blair County,PA
62maxwgn
master
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master
Joined: Jan 2003
Posts: 9,436
Blair County,PA
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Quote:
NE1 got a part # for the metal washer? the rubber ones last a few months.
# 2401740
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: Kudakidd]
#207807
03/09/09 02:31 PM
03/09/09 02:31 PM
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Joined: Sep 2003
Posts: 1,688 Marlboro, NY, USA
Rick_Ehrenberg
top fuel
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top fuel
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Unfortunately, I'm long since cleaned out of those NOS Moapr swivels. A Chevy rocker arm ball can work, just double-nut it.
By the way, with any clutch release bearing made in the last 20 years or so (high-precision /sealed), it is perfectly OK to set the free play at ZERO (or even a very small amount "negative"). (This comes stright from Chrysler engineering). This really improves clutch operation and feel, but you may want to make a pedal stop to prevent over-release. Alternately, I have moved the pedal up-stop down so the pedal is about 1" lower at rest, this is REALLY a nice upgrade.
Rick
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Re: 1968 4 Speed Clutch Adjust Measurement Free Play
[Re: 62maxwgn]
#207808
03/11/09 07:40 AM
03/11/09 07:40 AM
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Joined: Sep 2003
Posts: 1,688 Marlboro, NY, USA
Rick_Ehrenberg
top fuel
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top fuel
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Quote:
]NE1 got a part # for the metal washer? the rubber ones last a few months. # 2401740
... you got me all excited! But they have been NS1 for a decade, I just checked.
Rick
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