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Clutch Adjustment-Centerforce #1214920
04/12/12 05:29 PM
04/12/12 05:29 PM
Joined: Dec 2005
Posts: 885
alberta
Publicbottle Offline OP
super stock
Publicbottle  Offline OP
super stock

Joined: Dec 2005
Posts: 885
alberta
Hey moparts, I am working on my 1st 4speed car, i have a 70 challenger 340 with a OD833 trans. I put a new centerforce clutch in (*removed the overcenter spring) and all new linkage(pedals, z-bar etc) Is there a procedure to setup the clutch pedal? How much pedal play is appropriate?

Thanks for any help, I'm learning so much from this site!!

Re: Clutch Adjustment-Centerforce [Re: Publicbottle] #1214921
04/12/12 05:49 PM
04/12/12 05:49 PM
Joined: Aug 2003
Posts: 12,291
Kent, Wa
340SHORTY Offline
Truck Nut
340SHORTY  Offline
Truck Nut

Joined: Aug 2003
Posts: 12,291
Kent, Wa
did you read your instructions? What do they say? You should follow their recomendations for best results..


I am truckless..
Re: Clutch Adjustment-Centerforce [Re: Publicbottle] #1214922
04/12/12 07:01 PM
04/12/12 07:01 PM
Joined: Nov 2004
Posts: 1,708
S. Il. U.S.A.
5spdcuda Offline
top fuel
5spdcuda  Offline
top fuel

Joined: Nov 2004
Posts: 1,708
S. Il. U.S.A.
The short answer is 1-1/12 inches of free play should be about right. The longer and more complete answer is that a positive pedal stop is a good idea. This can be as simple and crude as a block of wood on the floor or as over engineered as you want to get. My personal choice is to weld a connecting nut available at any hardware store for about a buck to the clutch pedal arm. I use 3/8 in. thread size. I then take a 3/8 bolt and screw it into the connecting nut with the head facing the floorboard/firewall and adjust it so that the clutch is fully disengaged, and just a bit more when the head of the bolt hits the floor. I use a jam nut to keep it in this position. Clutch adjustment comes down to this: the throwout bearing should be 1/8-1/4 in. off the clutch fingers when the clutch is in the up position and fully disengaged when you push the pedal down. Since you have removed the overcenter spring [ unnecessary when a positive stop is used ], you may well have to rig up some sort of spring to keep the throwout bearing from dragging on the clutch fingers when the clutch is engaged. A positive stop isn't really needed when using a Borg&Beck or Long style [ can't hurt ] but it is possible to overcenter a diaphragm clutch without one. A diaphragm clutch is basically a big Belleville washer, smaller ones sans fingers are used in plate type Sure Grips. This was actually pretty common on factory GM clutches in the '50's & '60's. Most knowledgeable Chevy guys used Chrysler clutches [ Borg&Beck style ] in those days since the bolt pattern was the same.

Re: Clutch Adjustment-Centerforce [Re: 5spdcuda] #1214923
04/13/12 06:58 AM
04/13/12 06:58 AM
Joined: Jan 2003
Posts: 21,072
Niles , Ohio
T
therocks Online content
oh wait.but hey.lets see.oh yeah.
therocks  Online Content
oh wait.but hey.lets see.oh yeah.
T

Joined: Jan 2003
Posts: 21,072
Niles , Ohio
I just adjust mine till it goes into reverse with no grinding.My CF has been in for probally 8 years and no problems.Just try to seat it in before you dump the clutch.I drove mine for probally 100 miles before I saw how it would hook on a burn out.Rocky


Chrysler Firepower






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