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Case Tractors Discussion Forum
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L LA bearings

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dlp

02-15-2004 18:40:32




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While I'm waiting on my service manual to arrive, I'll pose these questions: Did The L always use babbit bearings? Does the LA use babbit bearings? If not, what will interchange? I just purchased a 1930 model L & don't know a whole lot about them. Thanks for the info in advance!




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RobertTX

02-16-2004 05:53:10




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 Re: L LA bearings in reply to dlp, 02-15-2004 18:40:32  
Supposedly, the 52 LAs had insert rod bearings, but I have a 52 and it does not have inserts. Don't know if they were changed out, or possibly the change to inserts was a mid year change and not all have them.



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Jim P

02-16-2004 08:56:55




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 Re: Re: L LA bearings in reply to RobertTX, 02-16-2004 05:53:10  
Mine were a 1929 L and a 1947,8,&9 LA'S all were babbit and adjusted by shims.



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Tom Railsback

02-15-2004 18:47:16




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 Re: L LA bearings in reply to dlp, 02-15-2004 18:40:32  
Yes to both questions and they are the same part number for both the L and the LA; the part number is O1170AB.



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dlp

02-15-2004 19:07:38




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 Re: Re: L LA bearings in reply to Tom Railsback, 02-15-2004 18:47:16  
main or rod?



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Matt

02-15-2004 19:33:05




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 Re: Re: Re: L LA bearings in reply to dlp, 02-15-2004 19:07:38  
Sorrey to interupt you guys, but I just bought a LA. What is a babbit bearing?



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Tom Railsback

02-15-2004 19:59:15




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 Re: Re: Re: Re: L LA bearings in reply to Matt, 02-15-2004 19:33:05  
Sorry if I wasn't clear enough. The number is for the connecting rods. If they need work, you will have to send them somewhere to be rebabbited, i.e. have new babbit poured and machined.

The main bearings are insert type. I don't know if you can still get them from CASE or not.



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Jim P

02-15-2004 23:15:28




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 Re: Re: Re: Re: Re: L LA bearings in reply to Tom Railsback, 02-15-2004 19:59:15  
I beg the differ-- they both are babbit and are adjusted by shims. My Dad had both L and LA and would file the caps when he run out of shims and if some babbit fell out he would soider in the holes. Still have 1929L with orginal rods caps and crank.



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Richard H. Gambrell

02-16-2004 05:30:42




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 Re: Re: Re: Re: Re: Re: L LA bearings in reply to Jim P, 02-15-2004 23:15:28  
I am working on several LA engines at the moment.
The rods are babbit and can be purchased from several vendors. The mains are bronze insert and have a thick layer of babbit poured in them. They must be line bored when replaced to fit the crankshaft.
I plan to start pouring new babbit in the mains when I get setup, if anyone is interested. I also plan to start rebuilding LA waterpumps soon as I get my lathe up and running.
Richard

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Jim P

02-16-2004 08:54:43




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 Re: Re: Re: Re: Re: Re: Re: L LA bearings in reply to Richard H. Gambrell, 02-16-2004 05:30:42  
Well I guess on the mains I just thought about the surface. They still are adjusted by shims , aren't they?



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