833 clutch issues....pedal feel.
#2757254
03/29/20 02:45 PM
03/29/20 02:45 PM
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Joined: Feb 2003
Posts: 3,691 MO
cdp
OP
master
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OP
master
Joined: Feb 2003
Posts: 3,691
MO
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This is the first time messing with a 4spd 4 me. 1971 plymouth RR, 383 4sp. Over the counter NAPA replacement diaphragm clutch. All parts are new. Rebuilt clutch pedal assembly, all new rod assembly, clutch fork, Z-bar, etc. I replaced everything with new OEM stuff.
When I first got everything assembled and installed (car has no front clip yet, so yard driving) I adjusted the clutch and it felt good. About a month later, of just pulling it in and out of the garage to tinker on, the clutch started acting funny. I'd push it in 1 time, felt fine, push it in a few seconds later and it would release less, then push it in again, and it would barely come up off the floor. Made multiple adjustments and only got a temporary fix, only to go back the way it was.
Do I need to take out the clutch pedal spring? I had to find a replacement set of clutch pedals (original 4spd/replaced with automatic) and am now wondering if the spring is too stiff (IE, a 440 spring, rather than 340/383).
What else could I be missing? Bearing/fork not aligned right? Z-bar is new also, so I'm pretty sure its for the correct application.
Thanks Chris
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Re: 833 clutch issues....pedal feel.
[Re: 1969ronnie]
#2757341
03/29/20 06:44 PM
03/29/20 06:44 PM
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Joined: Jan 2003
Posts: 5,439 So Cal
Sinitro
master
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master
Joined: Jan 2003
Posts: 5,439
So Cal
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Besides the return spring, there are differences in the Z-bars... It may be the right width, but the mounted tab that pushes back the rod to the fork may be incorrect. The rod should be parallel to the bell housing when the mounting tab is incorrect its entire geometry for smooth operation is wacko... I had this problem some years back, took my fork to our local Mopar guru, he smiled and brought out (3) different forks all these same width but the mounted tab was positioned different... Just my $0.02...
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Re: 833 clutch issues....pedal feel.
[Re: cdp]
#2757457
03/30/20 12:36 AM
03/30/20 12:36 AM
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Joined: Feb 2003
Posts: 10,200 Someplace you aren't
SomeCarGuy
I Live Here
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I Live Here
Joined: Feb 2003
Posts: 10,200
Someplace you aren't
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Remove over center spring. Make sure it has a jam nut or at least replace the nylon nut. Sounds like it’s losing the adjustment and the pedal will not return when that happens. The nut moves some and eventually it gets to where it can’t overcome the pressure to return. Make sure to look into that since you’ve already had the nut move and be reset a few times. I just go with a jam nut right off the bat.
I want my fair share
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Re: 833 clutch issues....pedal feel.
[Re: fastmark]
#2757498
03/30/20 08:31 AM
03/30/20 08:31 AM
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Joined: Dec 2004
Posts: 10,552 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,552
Rittman Ohio
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It sounds like you may have some binding issues maybe in the fork area or release bearing. I would remove the over center spring and adjust the clutch until there is zero free-play then adjust it until you only have about 1 inch . I have seen this before when the release bearing was binding from not enough lube on the front retainer sleeve. You may need to install a pedal stop with this particular clutch as sometimes you have too much travel. Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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