Diesel fuel issues

[farmtrac360]

I developed a loud knocking sound from the back of the engine in my farmtrac 360DTC, and after reading post here decided that is must be fuel related. Called the nearest farmtrac dealer (almost 3 hrs away) and they supported this and suggested Power Service Diesel Kleen additive. I've added half the bottle (80oz) in a single tank I'm just making smoke, knock still there. I had a mechanic over today who listened and recommended Biodiesel suggesting BP in Warrenton Va to get that Cetane up to the 47 range. He said that if it didn't fix it that we'd start tearing into the injectors. Any thoughts or suggestions are we on the right track and am I doing any damage as I run this thing.

 

[trac]

Have you been running off road fuel in this tractor?

 

[Tom W]

Do you use your tractor much or does it sit alot? My Indian made 545 sits alot and the tractor began loosing power and the injection pump knocking. The problem was the strainer in the tank bottom covered with a gray slime. I cleaned it and changed the filters and it happened again about a year later. After another cleaning and talking to some diesel people, I started using a biocide in the fuel. I have not had a problem since.
Tom