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Case Tractors Discussion Forum
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DC pulling motor ????

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dcpuller

12-26-2003 10:38:23




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Has anyone out there built DC motors for pulling. Want to do some work to mine, not stroking, but bigger bore and head and cam work as well, BUT!!, Has anyone put different rods in to get rid of the babbit bearings, if so, what did you do. I would like to get this motor so we get away from the babbit, replaceable bearing shells that way, thanks for any help guys!!




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bill

12-26-2003 17:10:58




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 Re: DC pulling motor ???? in reply to dcpuller, 12-26-2003 10:38:23  

I built a CC puller 5 years ago that done well I used 4 and one sixteenth flat tops and a 6128 lp head , stock carb with i think 730 venturie (built by motect engeneering in Ind. ) call me and I can give phone Number 406 827 2039 Never had a rod problem ran 10% ovrr rpm I suguest the old cc mag that has retard lever to start I also used C 31 tooth sprockets to give faster low gear as we had to pull in low 26 tooth DI sprockets might work for you I have a new problem to solve on lp head and m&w high dome pistons as I am now overhauling my loader ractor and today pulled head after 30 years on loader and found the M&W high dome 4 and one sixteenth pistons My problem is will putting another LP head which I have ( NO I DO NOT WANT TO SELL IT) might raise the compression too high . I know having too much compression is like having too much s-x but it may be possible. How about it DC TOM and others would the high dome M&W with lp head be too high compression or possibly would dome hit top of valve on intake and exhaust as both valves are slightly open then? Also while back a question was raised about thrust washer and lifter noise My thrust washer was founf woed out and in bottom of pan and the cam was wearing on the FLYWHEEL NOT TO mention the end play on the center main But 30 years is a long time on a loader

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dctom

12-26-2003 17:58:08




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 Re: Re: DC pulling motor ???? in reply to bill, 12-26-2003 17:10:58  
I DONT THINK THE COMPRESSION WOULD BE A PROBLEM VALVES MAY HIT BUT I AM GOING TO TRY SOON WILL LET YOU ALL KNOW DC TOM



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Earl S.

12-26-2003 16:19:24




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 Re: DC pulling motor ???? in reply to dcpuller, 12-26-2003 10:38:23  
We built a CC 15yr ago. 4.625 bore and 6.500 stroke.It ran good we had to run the CC carb.(modified internally).If I recall it had around 75 Hp. We used the low comp head that let us run bigger valves without shrouding.We ran pop up dome on piston.With bigger carb it would really perform. But the ITPA rules we had to run stock carb. My JD buddies weren't too happy with me. It won the Illinois State Fair 2 yrs in row with 2 different drivers. Jeff Justus Sidney, Illinois was the owner. He sold it to a man in Nebraska. I think he did well with it.Earl In Illinois

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John H-WI

12-26-2003 15:39:18




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 Re: DC pulling motor ???? in reply to dcpuller, 12-26-2003 10:38:23  
Remembering a couple of years ago about the guy and his son that modified a DC. They didn't give all the details but used LP head, M & W pistons (no longer available to my knowledge), and a carburator off an 830 gas. Did great in 7500 open class, no one within 20 feet of them in the pulls.



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caseboy

12-27-2003 00:26:20




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 Re: Re: DC pulling motor ???? in reply to John H-WI, 12-26-2003 15:39:18  
we have a 1952 D that we use in our filbert orchards. it has an aftermarket 3 point hitch combined with an eagle hitch. we run a 10 ft. orchard flail with it with ease. it is stock except for a large truck dry air cleaner feeding a carb off of a 2020 "green thing." we also put a more gradual 90 degree elbow off of the manifold. a neighbor states with pride how well his Deere diesel with 85 hp powers a 8 ft. flail. haha. just another stock, original Case outworking new tractors, and looking better while doing it too.

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Travis

12-26-2003 14:30:25




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 Re: DC pulling motor ???? in reply to dcpuller, 12-26-2003 10:38:23  
we built one to 470 cubic inches, but we kept the babbits, you can't wear them out. You can keep adjusting them. I would recommend keeping them. as far as bore goes, we used case 2290 sleeves, and made the block accept them.



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dctom

12-26-2003 12:11:36




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 Re: DC pulling motor ???? in reply to dcpuller, 12-26-2003 10:38:23  
WHY???? NOTHING WRONG WITH THE BABBIT BEARINGS VERY FORGIVING AND YOU CAN ADJUST WITH OUT BUYING NEW ONES



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