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Case Tractors Discussion Forum
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Babbit question for DC

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Ted

12-03-2003 22:41:55




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Guys, I need some advice. My DC needs new babbit. Is there anyone who repours babbit bearings in the Midwest (Northern Illinois)? What's it cost? If not, how much can I file off the crank and main caps to tighten her up?? Is it safe to turn down the crank .020" before a repour? Any of you ever do this yourdelf? If so what do I need?

Thanks!




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John Saeli

12-04-2003 04:34:55




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 Re: Babbit question for DC in reply to Ted, 12-03-2003 22:41:55  
Hey Ted; I can supply reconditioned rods, sized to your needs. I'm sure others can also. But, is there a reason that shaft needs turning? Obviously, you wouldn't turn it any more than you had to.



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ted

12-04-2003 05:28:15




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 Re: Re: Babbit question for DC in reply to John Saeli, 12-04-2003 04:34:55  
John, The rods might come in handy, but what about the mains? She's not terrible, just a little loose. Can I file down the main caps a few thousanths? I know that makes her egg shaped but It might last for quite a while since I don't work her too hard.



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Bruce Nerlson

12-04-2003 05:46:13




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 Re: Re: Re: Babbit question for DC in reply to ted, 12-04-2003 05:28:15  
Ted, the mains have shims. There are maybe three on each side about .002" thick. There is also a thick shim/bearing spacer that is about .110" thick. (stuck to the main shims). I think the whole stack is .125" or so. Before I would file the main cap, which is a tricky process to keep things straight and paralell, I would file or surface grind the thick bearing spacers. As to cost (that hasn't been answered here yet). Re babbitted mains would cost $150-$180, grinding the crank would run $120-$150 (more if the thrust is worn), lineboring the mains to size $150.-$200 and the rods will run $65-$75 each. This is no cheap deal.

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John Saeli

12-04-2003 06:13:35




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 Re: Re: Re: Re: Babbit question for DC in reply to Bruce Nerlson, 12-04-2003 05:46:13  
Hey Men! I have filed the cap with complete success. Not sure why I didn't file the pack, does it have a locater pin on it making it difficult to file??



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dctom

12-04-2003 06:23:00




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 Re: Re: Re: Re: Re: Babbit question for DC in reply to John Saeli, 12-04-2003 06:13:35  
I also have filed the cap dont take much and when you take shims out it is egg shaped, must have been designed that way, if crank is not outof round why grind it? just my .03 cents worth dctom



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Glenn FitzGerald

12-04-2003 08:59:04




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 Re: Re: Re: Re: Re: Re: Babbit question for DC in reply to dctom, 12-04-2003 06:23:00  
I, too like my crankcase set up properly. But, those DC's running at approximately 1250 RPM's will run forever on low oil pressure, especially if you're not plowing with it all day every day. It's not hard to spend $3,000 on a DC engine, but if you do and take proper care of it it will last your lifetime. Just my 3 1/2 cents worth. Glenn F.



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