hydraulic pump 1953 40c

boler76 · Post by **boler76** » Sun Feb 26, 2006 6:08 am

Would anyone know were a new pump can be found or at least a repair kit. here in Ontario Can we are told they are unavailable Thanks Jim

Bill Walter · Post by **Bill Walter** » Sun Feb 26, 2006 4:30 pm

Try contacting www.denglertractor.com They are located in SW Ohio

digitup · Post by **digitup** » Sun Feb 26, 2006 6:41 pm

Jim I picked two up just the other day mine has no pump and never did have one so I picked up two [one has extra parts] the guy ten miles north of me has Mc s,40cs 420cs,430cs by the barn full have you got a parts book to tell me what you need exactly for parts .I am in Wingham Ont and parts are in Teeswater Ont just a little north of me.Digitup

boler76 · Post by **boler76** » Sun Feb 26, 2006 8:13 pm

hi digitup thanks for info, are these used pumps and what kind of condition would they be in, I already have a worn pump, I really need either a new pump or a rebuild kit. Thanks Jim

Post by **Lavoy** » Sun Feb 26, 2006 9:59 pm

There are no new pumps available if you are talking about the factory pump. Seal kits and bearings are readily available from Deere.
Are you sure that the pump is the problem? I have never seen a pump bad enough that I would actually replace it rather than fix it. I am not talking about one with a busted housing or such, but an operating pump.
Lavoy

digitup · Post by **digitup** » Sun Feb 26, 2006 10:17 pm

Rebuild kits may be hard to find I will look into that at this end as I am about to install one of those pumps on my crawler Bothof these pumps worked fine when I got them the only reason that Igot the second one was the guy bought a whole runing dozer and wrecked it for the motor I was in the right place at the right time with 200 bucks I guess.That was a shame to take old deere apart It was in as nice a shape as the one I have in photo section though it also had a outside mount blade on it He put the motor in an old Muskoka boat [aparently worth a hundred grand ] These boats used JD motors aparently!! I walked into this guys place up here that wrecks old deere crawlers and the two were talking about scraping the machine this wrecker is talking about retireing so he dosen t want more and I grabed it ! 400 more dollars and I had a motor then two days later a whole crawler cheep You may not find a new pump any where and if you do it will be expensive ! Ask LAVOY about a kit he probably would know about this My JD dealer just priced those little screws on the hood [ from deere 116 dollars each !!] He said in 12 years that was the first time he was told what he could do with his parts. digitup

Post by **JD40c** » Sun Feb 26, 2006 11:05 pm

Little screws? The Dzus fasteners? Should be able to buy those dirt cheap.

boler76 · Post by **boler76** » Mon Feb 27, 2006 5:13 am

Maybe there is something else out of whack as Lavoy suggested will have to dig in further when weather warms up, I have both a 40c and a 420w with very slow acting and weak hydraulics. Would you be able to supply me with the name of the guy at Teeswater? Would he do business on phone? thanks Jim

digitup · Post by **digitup** » Mon Feb 27, 2006 11:15 am

I will talk to him I am taking off for a week right away here I will get back to you when I get back Digitup

digitup · Post by **digitup** » Tue Mar 07, 2006 6:53 pm

Jim I just got back can you put a presure guage in your pressure line and test it for maximum pressure at idle and mid throttle speeds this may cost you a guage and a line tee but I think it may be a relief valve problem Hydraulics work better in the cool temperature so start up will differ from a warm system check both ways but check the relief valve first it may be bypassing the system at this point this guy at Teeswater is looking for a pump as I do this. and here is my phone # 519-357-4223 call around meal time I am not in till evenings either. Digitup.

boler76 · Post by **boler76** » Wed Mar 08, 2006 3:34 am

Thanks for your help but have yet to check the bypass, will have to bring the machine out of the bush when weather permits. Original post I was asking for a new pump, but as they are not available I would really like a rebuild kit as I have 2 functioning used pumps now. Does any one know where I may be able to get a rebuild kit?. Thanks for all the help. Jim

Post by **Lavoy** » Wed Mar 08, 2006 10:22 am

There are no rebuild kits as such, only individual parts, and the main gears and shafts may now be obsolete. I keep some of the parts on hand, may have all of them.
Lavoy

boler76 · Post by **boler76** » Wed Mar 08, 2006 12:04 pm

Thanks Lavoy, now a question or 2 for you. Am I right saying the relief valve is not in the pump and also if seal is bad between pump and cam shaft when cold would the pump suck air and oil from engine? I believe I would like to have new seals and also new "O" rings can you supply them and what is cost? Thanks again Jim

Post by **Lavoy** » Wed Mar 08, 2006 1:16 pm

The relief valve is in the valve itself correct.
There is no seal in the pump, just an o-ring and backup. If they go bad, the hyd oil actually goes into the crankcase and overfills it. The shaft area is under pressure, not suction. Even so, the oil level in the engine is much lower than the camshaft.
Lavoy

boler76 · Post by **boler76** » Wed Mar 08, 2006 3:58 pm

Thanks Lavoy, When weather turns warmer here will do more testing, might have a suction leak as well so when I really get to the roots of my problems I will keep your reference as I may need "O" rings and the back up you're speaking of.. Thanks loads Jim

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