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Joined: Sep 2011
Posts: 9
Grease Monkey
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OP
Grease Monkey
Joined: Sep 2011
Posts: 9 |
My 1926 Chevy has a 1927 style carbon clutch thrust insert and seems to be working OK. Is it worth the effort or cost to replace the above set up with a carbon to ball bearing conversion as shown in the filling station catalog part # CV102? It appears to be the Verlyn Husman design. I would appreciate your thoughts. Ken26
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Joined: Jul 2016
Posts: 109
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jul 2016
Posts: 109 |
Hi Ken,
If your carbon throw out bearing is working fine and you aren't otherwise planning to tear take your engine/transmission apart, I don't really see any reason to replace it. I installed the ball bearing type throw out (I got mine through Gary Wallace) on my truck and it works great however, I also completely rebuilt the engine, transmission, replaced the clutch, input shaft, pilot bushing etc. at the same time.
The only "downside" that I know of with the carbon style bearing is that it's not a good idea to keep the clutch disengaged for long periods of time (say at a long stop light) as it will heat up and wear out quickly.
Tyler Platt Des Moines, IA 1926 1-Ton Truck
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Joined: Aug 2006
Posts: 1,774 Likes: 4
ChatMaster - 1,500
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ChatMaster - 1,500
Joined: Aug 2006
Posts: 1,774 Likes: 4 |
I would not change it. Two of my cars have carbon throw out bearings and I have been driving them in at least 2 parades a year for 30 years as well as regular driving and I have had no problems with them.
Ed
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Joined: Sep 2011
Posts: 9
Grease Monkey
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OP
Grease Monkey
Joined: Sep 2011
Posts: 9 |
Thank you Tyler & Ed Based on your comments, I think I will put the throw out bearing replacement job off. I am not having any problems with the carbon bearing at this time. Ken
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
I have several Chevrolets with the carbon throw out bearings. I also have a couple of the modern replacement bearing assemblies that I have never felt a strong need to install. When I rebuild the drive train I install a carbon bearing like originally was used. Maybe I am just old fashioned or want to experience these Chevys like our grandparents did? If you routinely put the transmission in neutral when extended idling (like at a red light) you will extend the life of the bearing as well as the thrust surface on the crankshaft/main bearing.
How Sweet the roar of a Chevy four!
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Joined: Apr 2006
Posts: 3,511 Likes: 48
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Apr 2006
Posts: 3,511 Likes: 48 |
I replaced the carbon bearing with a new ball bearing type on both of my trucks when I had the tranny out anyway.
1. Even though I put the tranny in neutral and let out the clutch at red lights, I get some peace of mind knowing that the throw out bearing will not overheat in any circumstance.
2. I don't know who will own this truck after me. Probably my son, but just to be safe, having newer technology in this spot is being proactive to prevent a breakdown in the future.
My two cents, Dean
Dean 'Rustoholic' Meltz old and ugly is beautiful!
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Dean,
The major reason to shift to neutral and let out the clutch on extended stops is to eliminate wear on the thrust surfaces on the crankshaft/main bearings. It is also wise even if you have a modern ball bearing instead of the carbon.
How Sweet the roar of a Chevy four!
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