I was told today by Michigan Cat that the governor spring 5f1941 is a discontinued part. they didn't show a cross reference either. I changed out the gov. bearings, pins etc last year. It helped with the speed stability but nothing drastic. I still get a 100 rpm hunt at any speed no load. With a slight
load (1/4 blade of dirt) the speed steadies out. I didn't see anything worn
with the rack or pumps. The nozzles are new. I thought the gov spring might
be spongy. Anyone have any ideas?