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Allis Chalmers Discussion Forum
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antother allis question

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alaska matt

01-13-2004 21:37:39




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can you prime the oil pump? say you had a 302 or 350 can you put a shaft in the collet of a drill and prime the oil pump? maybe you can if it has a dristributor, but what if it has a magneto? do these motors have an oil pump block off plate? and this is totally seperate! i looked at keely c's farmall page, did allis chalmers use the same type of lifter pump? where you can change the cluth with--out splitting the tractor?

i am gathering some much information from all of you on this site, it is almost unimaginable, every person that has replied has had a great solution to everything that i have asked, even if it is going to cost a ton of money!!!!, and for what everyone else has asked for!!

a special thanks to everyone for there wisdom on these old tractor problems. thank you so much: matt in fridgid alaska

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Johnski

01-16-2004 23:09:06




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
AK Matt, Do you want to prime this motor just 1 time before you first start it,or prime (pre-lube) the motor every time before starting? The race car boys have a neat accumulator tank system that stores oil under pressure when you shut off the motor. Opening the valve before starting pressurizes the oil system from the tank preventing dry startups. I would try searching for "JEG'S" or "Summit Racing" if you are interested in this setup.

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steve

01-14-2004 16:06:15




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
i think your tractor was a "C"? the engine lube pump is on the outside of the motor, just above the flywheel and clutch. there is a 1/4 inch pipe coming out of the right side of the cluthc housing at the top. there is a brass TEE on the pipe. the TEE feeds the rocker arm in the head, and lube to the filter (which is a bypass system). you can remove the TEE and pump out down the steel pipe with a small oil squirt can. as others said, this is normally not required, but sometimes. you are not trying to prime the pump as much as pump oil around the bearings right?? i have a portable pump with an electric drill attached. after a rebuild i connect it to the brass TEE and run the drill and pump 2 quarts of oil thru the bearings and lifter and rocker arm areas prior to setting the motor for storage. this might be a good idea on a motor that has not run for 20 years. starting up with dry bearings could cause additional damage to them. not a bad idea you have.

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JMS/MN

01-14-2004 12:14:04




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
I've never seen a need to prime the oil pump, even after a major overhaul of the engine. As long as fluids are to the proper level, everything should be fine. As far as replacing the clutch- there is only one way- you need to pull the engine. Yes, technically, you could do it if you already had the frame split behind it, but if there is nothing wrong with the differential, tranny, etc., the normal way is to pull the engine.

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Dave Grubb

01-14-2004 08:31:27




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
I have had good results by connecting a source of vacum to the oil pressure gage connecting port and cranking the engine while pulling a vacum on the oil system. This works well but you need to have the oil filter filled ahead of time for best results in the shortest time. I use a manual brake bleeding vacum pump but I have used a shop vac - messy when the oil arrives.



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Aaron SEIA

01-14-2004 05:43:56




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
The oil pump is ran off of the cam, I'm not sure there is a way to prime the engine without turning it over. As for clutch replacement, take the radiator off, pull the 4 bolts out of the bell housing and pull the motor. Thats the fast way to do it. And, if you are reworking the engine anyway, the crank has to come out to do the main bearings and rear seal.
Aaron SEIA



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Chris

01-13-2004 22:26:32




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 Re: antother allis question in reply to alaska matt, 01-13-2004 21:37:39  
The book says the oil pump is driven off the camshaft. I do not see an easy way to spin the pump to prime it. There is however an external oil line on the side of the block that feeds the head. You could remove this line and pump oil into the filter and oil galleys that way. From the sounds of things as you described them earlier priming the oil system may be the least of your problems with this tractor!

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