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Oliver, Cletrac, Co-op & Cockshutt Tractors Discussion Forum
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Re: 1850 perkins crank pulley revisited

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J. Schwiebert

10-24-2012 17:48:19

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Please explain what you mean here: Engine serial # is 8512917 C making it a 3rd and last series perkins for the 1850 by my records. Late 1850 tractors used the second method of Perkins engine I. D. (The 354 U numbers) Your engine does not have a build number so if you ask a Perkins dealer and you get a younger parts man he will be lost since you don't have a build number. Where are you located? I know several older Perkins dealers to check. Also I am going to bear other bad news. I think it might be wise to replace that liquid dampner. They are not cheap!, but neither is a new crankshaft.

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Broke again

10-25-2012 06:51:25

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 Re: 1850 perkins crank pulley revisited in reply to J. Schwiebert, 10-24-2012 17:48:19  
I am in Texas. The serial number is stamped above the auxillary shaft housing by the injector pump. The info I obtained about the three series of Perkins was from a Sherry Schaefer article on 1850s' in her Oliver Heritage magazine a couple years back. This 2" collar I speak of on my original is stepped down in two sizes being about 3" outer diameter nearest the pulley, 1" long and reduced to about 2 1/4" OD, 1" long. The smaller diameter part has the splines made into it. The collar on the new part they sent me is only 3/4" long, 2 1/4" OD which means it will not reach the crank. The end of the crank is too far inside the front motor mount and needs that 2" of collar to keep the pulley from rubbing the motor mount. Surely I'm not the only one that has ever run into this. I also do not know anything about a liquid filled dampner. My original pulley has a round, appears to be heavy steel, not cast flywheel type weight bolted to it by nine 5/16 bolts. No liquid or rubber involved in that design as far as I can tell. There are no numbers stamped into this pulley, weight or the two metal rings that bolt the two together with.

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J. Schwiebert

10-26-2012 03:39:42

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 Re: 1850 perkins crank pulley revisited in reply to Broke again, 10-25-2012 06:51:25  
If it rains I might have a chance to check some numbers for you. If not we want to finish beans today and I will check them the first of the week.

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