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560 diesel

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oldfarmer

New User
My 560 diesel is not running right. It starts fine but after about a minute or two it puts out white smoke and will not rev up, it will stall if you try to run it at idle. It has to be just above idle to run. I have changed the fuel filters but no help. As anyone ever run in to this problem or any diesel mechanics have any ideas. Thanks in advance.
 
Check and see if you are losing coolant, you could have a blown head gasket or cracked head. Check for bubbles in the radiator.
 
When it stalls if I wait about 30 seconds it will start right up again.
It will run and rev up for about a minute then it will nor again until you stop it and restart.
 
Could be that you are starved for fuel. Are you getting enough fuel to the pump? Are you getting return fuel?
 
That is what I thought. That is why I changed the fuel filters. I am getting good flow to the pump.Could a partially blocked return line cause this problem. Maybe I need to check that
 
Use a flashlight to look down in the fuel tank in the area of the outlet. Check for foreign material clogging the outlet. We had a corn stalk tassel plugging ours. Ended up taking the tank off & turned it upside down to clean it out---bunch of crud came out. Of course, it was used on the picker, so it had lots of opportunity for dirt to get in the tank. The younger brother wasn't too careful about cleaning around the filler when he refueled.
 
Brownie: You bring back some memories of getting a single kernal of corn in a diesel combine fuel tank. It would work fine until it sucked that kernal into to fuel tank outlet. Man did that combine stop quick. After the season I removed the tank, one damn kernal, caused all that grief. That's right, one kernal of corn, all that came out. After the kernal removal, never had any more problem. A great deal more care was exercised during fuelling, from then on.
 
There is a rubber hose on my 560D from the final filter to the fuel pump. About every 10 to 15 years this hose gets rotten and stops the fuel flow to the pump and needs to be replaced. If the tractor sits 4 or 5 hours you will appear to have plenty of fuel when you crack the fitting at the pump but if you check it after it stalls you will only have a few drips with the hose disconected. Install a new hose. Armand
 
(quoted from post at 15:26:19 09/03/08) That is what I thought. That is why I changed the fuel filters. I am getting good flow to the pump.Could a partially blocked return line cause this problem. Maybe I need to check that
Click to expand...

The RoosaMaster pump depends upon a pressure differential between the charge pump pressure and the case pressure to fill the high pressure pistons. A restriction in the fuel return system will cause a rise in case pressure and result in decreased fuel delivery to the injectors. The most common cause is the governor weight retainer crumbling and plugging the fitting on top of the pump. When the ring breaks up the resulting pieces look something like used coffee grounds.
 
Hugh-- our neighbor had a Deere 95 combine that had intermittent fuel starvation--which turned out to be the rear end of a wasp which would get sucked down into the tank outlet. Just when a person thinks he's seen everything that can happen to a machine or tractor-- something different happens. You have never seen it all.
 
Thanks for all the suggestions. Armand was right, I replaced the hose from the final filter to the injector pump and the problem was solved.
It looks like the hose was the original.
Thanks again.
 
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