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Throwout Bearing Noise #1311073 Sat May 18 2019 05:32 PM
Joined: Feb 2019
Posts: 181
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Phak1 Offline OP
Shop Shark
I have a noise then the clutch is fully released, engine running and the transmission is in neutral. After reading several post on this exact issue I think i have it pinpointed to the clutch fork and and pivot ball as the issue. The throw out bearing is still in contact with the clutch fingers.

My truck is missing the clutch cover plate so it was easy to see. The fork pulls away from the ball pivot easily. I looked in the service manual and one of the inspections for the clutch for is to check that the ball is snug and has no endplay. I’m thinking that no endplay means it can’t pull out of the socket.

Does this sound like the problem? Can the fork be pulled without pulling the transmission?


1952 Chevrolet 3100 w/59’ 235 & hydraulic lifters
Original “Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Throwout Bearing Noise [Re: Phak1] #1311088 Sat May 18 2019 09:15 PM
Joined: Feb 2004
Posts: 19,016
H
Hotrod Lincoln Online
Boltergeist
There is supposed to be a C-shaped retaining spring that fits into a groove in the throwout fork where it pivots on the ball. If it's missing, the ball can be pulled forward by the return spring, which, I believe, was also missing on your truck. Unfortunately, it's difficult, if not impossible to remove the throwout fork with the transmission in place. Some ball pivots screw into the bellhousing and have an Allen wrench socket to install them from the back side, but the head of the pivot bolt is usually covered by the front of the transmission.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
Re: Throwout Bearing Noise [Re: Phak1] #1311091 Sat May 18 2019 09:37 PM
Joined: Feb 2019
Posts: 181
P
Phak1 Offline OP
Shop Shark
That sounds like it would account for that movement and yes I was missing that spring.

Is this the spring retainer you are talking about?

Is it installed in the fork first then popped onto the ball pivot?

Attached Files
Last edited by Phak1; Sat May 18 2019 09:51 PM.

1952 Chevrolet 3100 w/59’ 235 & hydraulic lifters
Original “Three on the Tree” & 4:11 torque tube
12v w/ Alternator
Re: Throwout Bearing Noise [Re: Phak1] #1311094 Sat May 18 2019 10:38 PM
Joined: Feb 2004
Posts: 19,016
H
Hotrod Lincoln Online
Boltergeist
Yep, that's it! I don't know of any shortcuts for installing it- - - -just bite the bullet and do whatever it takes to remove the fork and install the spring.
Jerry


The murder victim was drowned in a bathtub full of Rice Krispies and milk.
The coroner blamed the crime on a cereal killer!

Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!

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