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More roosa master pics


 
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EP
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PostPosted: Wed Nov 18, 2020 4:21 am    Post subject: More roosa master pics Reply to specific post Reply with quote

I thought I would post a couple more pics. I got this pump in yesterday from a JD dozer. It was the typical run for a few minutes. That almost always is because of the governor ring coming apart. It was very appearant when I took the cover off that this was the case. One pic is of the tool to remove the advance stud





 
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tomstractorsandtoys
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PostPosted: Wed Nov 18, 2020 7:15 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

Thanks for posting. I have seen pumps tore apart but do not trust my skills enough to try it myself. Tom
 
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cumminspuller
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PostPosted: Wed Nov 18, 2020 7:54 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

Dumb question but what are all of the little black pieces inside? trash?
 
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Dieseltech
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PostPosted: Wed Nov 18, 2020 7:58 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

The "coffee grounds" inside are the weight retainer remains when it breaks apart over time..
 
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Scott 730
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PostPosted: Wed Nov 18, 2020 8:48 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

Dieseltech, what kind of service life can be expected for a flex ring with today's fuel? I re sealed my non running 4020 2 years ago and didn't know of the new style cage until after I was done.
 
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Dieseltech
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PostPosted: Wed Nov 18, 2020 9:39 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

I haven't seen any increase in failure of the flex ring with today's fuel. Most I'm repairing now STILL have been in use 25-30 years or more. I've seen the new type
weight cage fail so I seldom put them in as they have gotten more expensive too. Pump is not designed for 10,000 hours or more like Bosch inline pumps will do anyway.
Most will need service at 4,000-5,000 hours. There are other parts inside that SHOULD be inspected about that time also to prevent head seizure/drive shaft breaking.
 
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Scott 730
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PostPosted: Wed Nov 18, 2020 10:30 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

Thank you. :D
 
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gefreedom@telus.net
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PostPosted: Wed Nov 18, 2020 3:45 pm    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

CVPost-ep wrote:
(quoted from post at 05:21:33 11/18/20) I thought I would post a couple more pics. I got this pump in yesterday from a JD dozer. It was the typical run for a few minutes. That almost always is because of the governor ring coming apart. It was very appearant when I took the cover off that this was the case. One pic is of the tool to remove the advance stud
<img src="/cvphotos/cvphoto63365.jpg">

<img src="/cvphotos/cvphoto63366.jpg">

<img src="/cvphotos/cvphoto63367.jpg">

 
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dwag
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PostPosted: Sat Nov 21, 2020 2:55 pm    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

My former pump shop offered a "better" flex ring for more $$$ and 2yr warranty instead of 1yr. Always figured it was a scam?
 
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fdt860
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PostPosted: Sun Nov 22, 2020 1:34 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

CVPost-ep wrote:


<img src="/cvphotos/cvphoto63367.jpg">


Speaking about the advance pin, this week I rebuilt a Deere 5020 pump that was mofified:

The advance pin was removed, and another smooth hole drilled on the other side of the lobes cam ring.
Then the advance piston had been changed so a simple pin with a ball end could be inserted trough it.

I should have taken a picture. Does this sounds like a DM pump update?
I thought this was very neat. At least very easy to get on and off.
 
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fdt860
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PostPosted: Sun Nov 22, 2020 1:41 am    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

For sure, it was a DM pump advance pin fitted to a DB pump. Did Stanadyne ever advise to do so? For what reason?

https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.stanadyne.com/dealerportal/ssi/english/Product%2520Manual/99834.pdf&ved=2ahUKEwi3mray7ZXtAhWNohQKHeA9CRcQFjALegQICRAC&usg=AOvVaw0gfY5gIOT7WI1dWUDvdECx
 
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EP
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PostPosted: Sun Nov 22, 2020 2:43 pm    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

Was it ever for a pulling tractor? That is
done sometimes.
 
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fdt860
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PostPosted: Sun Nov 22, 2020 3:23 pm    Post subject: Re: More roosa master pics Reply to specific post Reply with quote

I do not think so. This looked like a regular 5020.Fuel was turn all the way up, minus few degrs. I readjusted the spring by the book, or almost by the book, because I am using a digital caliper.
 
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