I dont know if i am asking this in the right forum or not,

But right now we are dealing with a Cat D6D tractor that has all of a sudden gone low on power... The most recent repair to the tractor was the elbow taht connects from the turbo to the stack, (exhaust) and since then the tractor has gone low on power. What can be the cause? Similar to our trucks, is it fuel pressure? The tractor does not smoke black at all, and the turbo is in fair condition at best. One of the fuel filters has been changed, the main one off the block, im not sure if there is another one.... or what steps to take to get this thing running the way it should be once again...



Please help this rookie with CATS get this old tractor back up to spec...

Rick

 

look on the bottom of the fuel pump, right behind the drive adapter that goes into the front gear case. There should be a bowl there, held in place by a wire bracket with a thumbscrew on it for tightening the bowl in place.

Remove the bowl, and there will be a filter in there, most likely a metal screen. There are two types, push on, and thread in. the thread style has a 1/4 NC stud built into the strainer assembly. Unscrew this, and clean the strainer, or replace as required.

This is the single most overlooked filter on those machines, from my experience. I have taken them off, in low power situations, and seen that they were plugged with 20+ years of crap from the fuel tank.

Also, check to see that your decelerator linkage is not sticking. I have had that problem in the past as well, and the thing just will not come up to speed. That one is more rare, but it can happen.

Good luck