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Ford Tractors Discussion Forum
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Re: Think I found my hydraulic pump noise

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Bill Radford

07-08-2013 18:26:03
71.65.204.159



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Guess what... I went out to the shop and... took out the 7/16 bolt and washers. Drove the wobble shaft out with a flat end drift and guess why the gear spun crooked...some genius had put a gear on the splined shaft and the gear did not have splines.. just kind of sat on the splines.
Took a fine file and cleaned up the splines a bit. looked fine.
Now for the best part!
Bearings looked fine and shaft rotated smoothly. I dont think I'll have to replace anything but the gear.
In Medicine we have a term for this type of thing.. Iatrogenic disease or disease caused by a medical provider.
I think I have seen the mechanical equivalent.
Now off at lunch to the CNH dealer down the street to order a gear and we should be in quite good shape!
Bill

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Bill Radford

07-09-2013 08:06:47
199.90.157.10



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 Re: Think I found my hydraulic pump noise in reply to Bill Radford, 07-08-2013 18:26:03  
Final word:
Spines were worn out on gear, wobble shaft and bearings were toast. Ordered parts.
Front of pump (piston side) OK
If that had continued to be run like it was, failure would have been nasty. As it is, cam gear is ok and will not have to split the tractor.
Coulda been a lot worse.
Veteran CNH mechanic has agreed to install bearings etc and set up gear/shaft etc for 1 hour of labor since I got parts from CNH (when you count shipping, they were very competitive w/online prices)
Local dealer had it all except for the gear.. will be in this thursday and hopefully I'll bolt it all up Friday night.
Moral of the story: Listen to your tractor!

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Hal/ Eastern WA

07-09-2013 18:52:32
97.115.186.183



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 Re: Think I found my hydraulic pump noise in reply to Bill Radford, 07-09-2013 08:06:47  
Sounds like you are coming out smelling like a rose! And having the bearings changed for 1 hour of shop time is a bargain. I had much more time than that just getting the bearing cone out of the housing, but maybe they have the proper tools. Or maybe there is a trick I didn"t know about. Working with a die grinder worked for me, but it was WAY slow.

With the looseness you described, I would advise replacing the roller bearing AND the needle bearings, as the old ones are probably destroyed. I think I would ask to see the removed parts, "just to see how bad they are", to make sure they actually change both bearings.

I agree with you, listening to your machines is really important. I would be slightly concerned about wear to the rear camshaft gear from the poor mesh the old gear on the pump had with it. When you get it back together, if it doesn"t sound right, I would suggest shutting it right down, as you still may need to replace that drive gear to avoid further damage. Hope you don"t, and it will work OK. Good luck!

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Bill Radford

07-10-2013 04:50:59
199.90.157.10



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 Re: Think I found my hydraulic pump noise in reply to Hal/ Eastern WA, 07-09-2013 18:52:32  
The mechanic has got all of the original Ford tools (dealer has been in business for over 50 years)including the factory "push puller" for the bearing race.
I've got the bearing, race,needle bearing, o rings, wobble shaft and gasket in a box.Housing has been stripped and has been in the "tank" and cleaned. He wants me to run over there after lunch Friday and we'll rebuild it (he says he wants someone to know all this stuff when he's gone since he turns 70 this year)He grew up working on this stuff.
Cam gear looks very good, my mechanic says we may have a slight whine due to putting an old gear with a new gear, but it will go away after they wear in.
I was prepared to split her and replace cam gear but was advised that as long as it was not loose or severely worn we would be ok

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NoNewParts

07-10-2013 05:25:34
67.240.141.151



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 Re: Think I found my hydraulic pump noise in reply to Bill Radford, 07-10-2013 04:50:59  
Quoting Removed, click Modern View to see

good deal

man, I would jump at that chance

common sense is ok, books are good, the archives here

on an unusual job are great,

but there is nothing like watching a master's hands at work to

teach a job.

Most of my 'teachers' are gone now, and I only wish I could have

watched them more.



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Bill Radford

07-10-2013 06:17:44
199.90.157.10



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 Re: Think I found my hydraulic pump noise in reply to NoNewParts, 07-10-2013 05:25:34  
So true..
I am trying to learn as much as I can. Even though I am not young myself by any stretch of the imagination, it pains me to see how much old school knowlege is lost everyday. There was an old guy in my home town, he was a mechanic all of his life, when I was a kid he taught me how to set up points in a distributor. He got alzheimers and when he died he didnt know who he was. So sad.
I went to Dental school in the late 70's and had the chance to study under some of the developers of the technology we have today. One of my favorite professors was a guy that did a lot of development work on the air driven tools that we use today and developed many of the burs and diamonds used in todays high speed tools in Dentistry and was also one of the pioneers in development of the cosmetic bonding techniques we use today.He helped to write the books that were used in dental education all over the world for the last 50 years
He's still living (almost 100 years old) and still sharp as a tack.
A national treasure.

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