hrRoss

Member
im considering buying a military rebuilt Hercules 298 diesel engine for my 570 cockshutt. will I have problems with the roosamaster pump after sitting for 8-10 years since rebuild? anyone purchased one of these motors, how did it work out?
 
I'd be surprised if the engine starts after setting that long, I repair pumps each week that have stuck internal parts that have set unused six months or more if there's ANY water in fuel or bio diesel. You might be the lucky one though.
If the engine is from a genset the pump should have the genset governor setup removed and tractor governor parts installed.
 
So is it the low sulfur in the fuel causing all these injection pump issues I read about ? Because in years past I remember starting diesel tractors that sat for very long times and had no issues.
 
Mike, IMHO low sulfur is the root of the failures, removing sulfur removed the lubricity in the fuel. Early on in low sulfur I had seen numerous pump and injector failures, it was pretty ugly. In that time period I was chopping with a large self propelled chopper, v12 and a injector pump barrel seized, which broke out the side of the pump. It sprayed oil and diesel fuel all over the very warm engine, resulting in a fire. Numerous fire extinguishers finally put the fire out, but the damage was well over $100k. Since then it has been B5 fuel, and is what we recommend to our customers. B5 doesn't come with out it's own issues if used in seldom run engines though.
 
Hercules shut down in 1999. From what I know. As parts run out that's it. I have started engines older than that one. Some I got lucky on and some were a waste of time. With the OEM gone and an engine. That has been sitting who knows how long. Well it is your money
 
I believe it is. I never saw as many fuel related problems. In the old days. We had a old diesel tractor that was a back up for the farm. It may sit a year or two. Put a battery on it and go to work.
 

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