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4speed: Overcenter spring disconnected #2957177
08/25/21 08:17 AM
08/25/21 08:17 AM
Joined: Aug 2003
Posts: 8,828
Houston, Tx
hemi68charger Offline OP
master
hemi68charger  Offline OP
master

Joined: Aug 2003
Posts: 8,828
Houston, Tx
Hello all..

Won't pretend to be a 4speed guru.. So, asking here... What is the consequences of the overcenter spring in the pedal assembly NOT being in place. In th past when I have installed a Centerforce clutch, it was instructed to disconnect/remove the overcenter spring. Just noticed on this '70 Charger R/T 4speed car I'm working on that the spring is disconnected AND the car has the original style 3-finger clutch, which means the overcenter spring should be installed and used.
What are the consequences of the spring not being installed when a OEM-style 3-fork clutch is used? The clutch pedal really has to be pressed all the way down for me to go through the gears.

Thanks..
Troy


Troy
Houston Mopar Connection Club
'69 Charger Daytona 440 - auto - 4.10 Dana (now with 426 hemi)
'69 Charger 500 440 - 4speed - 3.54 Dana
'70 Road Runner 383 - 4speed - a/c (now with 440)
Re: 4speed: Overcenter spring disconnected [Re: hemi68charger] #2957208
08/25/21 10:32 AM
08/25/21 10:32 AM
Joined: Jan 2003
Posts: 15,350
Omaha Ne
T
TJP Offline
I Live Here
TJP  Offline
I Live Here
T

Joined: Jan 2003
Posts: 15,350
Omaha Ne
The over center spring is there to help depress the clutch with the non diaphragm style clutches. You issue is more likely related to Clutch adjustment or linkage issues.
The clutch should start to engage about 1/2" off the floor. Try lengthening the adjustment a turn or so at a time until you achieve that. Also keep in mind that the throw-out bearing should not be touching the PP fingers when released beer

Re: 4speed: Overcenter spring disconnected [Re: TJP] #2957211
08/25/21 10:36 AM
08/25/21 10:36 AM
Joined: Jan 2003
Posts: 6,224
JERSEY
RJS Offline
master
RJS  Offline
master

Joined: Jan 2003
Posts: 6,224
JERSEY
Troy that spring helps to overcome the hard 3 finger pressure plate, needs to be put back in for system to work as designed.
Ron

Re: 4speed: Overcenter spring disconnected [Re: TJP] #2957217
08/25/21 10:44 AM
08/25/21 10:44 AM
Joined: Aug 2003
Posts: 43,157
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 43,157
Bend,OR USA
Originally Posted by TJP
The over center spring is there to help depress the clutch with the non diaphragm style clutches. You issue is more likely related to Clutch adjustment or linkage issues.
The clutch should start to engage about 1/2" off the floor. Try lengthening the adjustment a turn or so at a time until you achieve that. Also keep in mind that the throw-out bearing should not be touching the PP fingers when released beer
iagree scope up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: 4speed: Overcenter spring disconnected [Re: Cab_Burge] #2957222
08/25/21 11:02 AM
08/25/21 11:02 AM
Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
Copper Dart Offline
pro stock
Copper Dart  Offline
pro stock

Joined: Apr 2011
Posts: 1,520
West Palm Beach, Florida
IIRC, I remember reading early chrysler tech bulletins (1978-2005) about over center springs on later model front wheel drive cars. One of the issues was noise caused when the spring softened over time. As i understood it, it helps with both fully depressed pedal and foot off pedal the same.
Please dont rely on my wonderful memory, I dont either.
Copper


Common sense, the least common of all the senses.
Mom.

For fear of ridicule, society stifles creativity.
Ricky Valdes
Re: 4speed: Overcenter spring disconnected [Re: Copper Dart] #2957267
08/25/21 12:57 PM
08/25/21 12:57 PM
Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
John_Kunkel Offline
Too Many Posts
John_Kunkel  Offline
Too Many Posts

Joined: Jan 2003
Posts: 25,785
Rio Linda, CA
iagree The OC spring also returns the pedal to the full up position.


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