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Perk3384 
Bronze Level
Joined: 20 Jul 2017
Location: Kentucky
Points: 6
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 Topic: CA clutch size
Posted: 20 Jul 2017 at 8:51am |
Hey guys been lurking on this forum for a while gathering information as I am starting work on a CA that's been my grandpas since the 60's. That being said it has been parked in the barn since I can remember and I'm 33. It was parked because the clutch rod went out or so I was told. I am going to start working on her to get her running again and know for a fact it needs a clutch kit among other things to get her running. I was looking to buy a clutch kit but noticed there are 2 sizes 8.5 and 9. Is there a way to tell the size without taking it off and measuring it so I can order it and have it here when I need it or am I going to have to take it off measure and then wait? Thanks,
Shawn
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Gerald J.
Orange Level
Joined: 12 Sep 2009
Location: Hamilton Co, IA
Points: 5636
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Posted: 20 Jul 2017 at 10:08am |
The G- B-C-CA shop manual I have on line http://www.geraldj.networkiowa.com/Trees/Allis-Chalmers-G-B-C-CA-Service.pdf in the CA specifications section page CA-6 says 8-1/2". The manual isn't dated. It has considerable details on the clutch disassembly and assembly on page CA-30.
Gerald J.
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davh
Silver Level
Joined: 27 Apr 2016
Location: Kansas
Points: 117
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Posted: 20 Jul 2017 at 10:57am |
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If it is electric start it is an 8 1/2 in clutch. The 9 in clutch was used with the flywheels with not starter ring. Hope this helps.
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Rick
Orange Level
Joined: 11 Sep 2009
Location: Jonesburg,Mo.
Points: 3676
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Posted: 20 Jul 2017 at 11:55am |
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The CA IS 8 1/2". Rick
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bauerd44
Silver Level Access
Joined: 11 Sep 2009
Location: Wentzville, MO
Points: 350
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Posted: 20 Jul 2017 at 6:15pm |
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Shawn,
The Rick that replied to your question rebuilds clutches and brake linings for old equipment as his job. Just PM him with any questions.
Dale
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Missouri Allis-Chalmers Club
CA Allis, 175 Allis, 185 Allis
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Perk3384
Bronze Level
Joined: 20 Jul 2017
Location: Kentucky
Points: 6
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Posted: 20 Jul 2017 at 6:28pm |
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Thanks a bunch for the replies guys! Ordered the 8.5" and we'll see how it goes tomorrow. My great uncle, whose father owned an Allis dealer, was an Allis mechanic and is coming over tomorrow to split her and see what we can finish while he's in town.
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Dakota Dave
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Joined: 12 Sep 2009
Location: ND
Points: 3964
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Posted: 21 Jul 2017 at 7:37am |
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The most common problem with the C and CA clutches in the clutch fork wears out where the actuating pin goes thru it. and them it wont push the throw out bearing far enought to disengage. its the u shaped strap iron piece in there. just take it out straighten it and weld back. I have been adding a small piece of pipe welded to the fork where the pin goes thru just put the pieces on your welding table put the pin throught the hole with a piece of pipe on it inside the U shape and weld it in place. be careful not to weld the pin it must rotate.
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Perk3384
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Joined: 20 Jul 2017
Location: Kentucky
Points: 6
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Posted: 21 Jul 2017 at 8:20am |
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I'll check Dakota thanks. Tractor was originally parked in late 80's because clutch rod went out in field, that's what great uncle told my grandpa then, it was pulled in with handclutch. So today we'll see what is jacked up when we start splitting her.
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