Thanks for all the support guys!
M813rc I'll check the ser# info tomorrow or friday and post it here. It would be interesting to know.
The 2200RPM on the 855 isnt completely out of the norm. I was an owner operator for 8 years & was around alot of 855's and Cat 3406A's B & C's I had all my Cats turned up and set to 2500RPM and ran nothing but 3:55 rears, ever seen that speedometer gauge needle reach the M?
(
I know someone will have to go look at their trucks speedometer to get when I'm saying, lol, I had to the first time I heard that )
I REALLY had to keep an eye on the old Isspro gauge LOL. But as long as you kept the temp under 1200 you'd still get close to 1,000,000miles between O/H's.
I'd like to turn up the pump, a little, and try some different buttons.
BUT I'm a purist when it comes to these kinds of trucks so I'll prolly leave well enough alone.
FYI if you ever get the chance to get the buttons out of an old IRRIGATION spec 855 pump it WILL blow a 12" flame without much effort, especially on these non Turbos......And twist drive lines if you aint careful. Dont try it. Been there, its kinda like owning a full auto, its fun for about 5 minutes, then you think UGH...that was expensive