Looses power and stalls

450c · Post by **450c** » Tue Feb 26, 2013 9:25 am

Hi all. My 450B started acting up yesterday. I was clearing snow for about an hour when the rpm started falling off and the machine stalled. After sitting a couple of minutes I restarted it. It ran fine for a few minutes than slowly stalled again. I let it sit a minute than rstarted and drove a little way than it stalled again. I did this a couple more times to get it to a spot I could look at it. The fuel filters are both new, replaced last fall so it should be getting a good supply of fuel. Has anyone had this issue in the past?

Paul Buhler · Post by **Paul Buhler** » Tue Feb 26, 2013 1:52 pm

Hi: Did you check the fuel tank venting? Just a thought. Paul

jtrichard · Post by **jtrichard** » Tue Feb 26, 2013 2:00 pm

see if you are getting fuel to the pump a steady flow for a few minutes if you are do you have a roosa master pump? sounds like the ring inside is coming apart search (mouse turds) on here and it will talk about what maybe happening

450c · Post by **450c** » Wed Feb 27, 2013 8:10 am

I ran the machine with the fuel cap off and it still stalled so its not venting. Yes it is a roosa master pump. I'll search mouse terds.
Thanks Mike

450c · Post by **450c** » Wed Feb 27, 2013 9:14 am

It has been sugested that the John Deere injector pump manual can be downloaded for free off the internet. I can't seem to find it. Has anyone downloaded it, if so do you have the link or web site?

JWB Contracting · Post by **JWB Contracting** » Wed Feb 27, 2013 9:19 am

A plugged return line fitting on the top of the injection pump will also cause this issue.

450c · Post by **450c** » Wed Feb 27, 2013 9:37 am

Thanks Jason. I'm going to have to get the manual or at least a schematic of the pump to identify the return line.
Mike

JWB Contracting · Post by **JWB Contracting** » Wed Feb 27, 2013 9:43 am

On the pump, it is the metal line coming vertically and directly out of the top of the injection pump and there's only one of them.

Loosen the line from the fitting and the fitting from the pump. Fire it up and see if it continues to loose power and stall.

My dad and I had a similar problem on a Deere at tractor and went as far as changing the injection pump (using the original pumps fitting) and the problem continued. I cracked the return line and it worked.

Could be this simple of fix.[/img]

450c · Post by **450c** » Wed Feb 27, 2013 10:01 am

I'll check it. The machines 100 miles from me and I won't be back to it untill next week. I'll let you know.
Thanks

Paul Buhler · Post by **Paul Buhler** » Wed Feb 27, 2013 10:38 am

450c wrote:It has been sugested that the John Deere injector pump manual can be downloaded for free off the internet. I can't seem to find it. Has anyone downloaded it, if so do you have the link or web site?

Try this link: http://www.scribd.com/doc/74914711/John ... al-SM-2045

Paul

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Looses power and stalls

Looses power and stalls

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