View Full Version : Attention Npr Owners !

lawn king
05-04-2007, 08:44 PM
I had the valves tightened today on my turbo diesel, 52000 miles. They were all very loose, if they get too loose you will suck a valve!!

05-05-2007, 09:28 AM
What year is it?

lawn king
05-06-2007, 10:53 AM
2003 npr hd turbo diesel. I built it new from cab & chassis, knapeheide landscaper body,venco 11000 lb hoist, snoway 9' plow and xm satellite radio. I just had my first expensive repair, corrosion in my wiring harness. I told the dealer to check the valves while it was there. 4 seasons of work including snow, trucking/dumping,trailering my 4000 lb tractor, etc. So far im happy with the overall performence of the npr, these trucks are great on fuel, the diesels that is.

lawn king
05-08-2007, 08:50 PM
Just for the record, my diesel is now much quieter and i have a little more power!

Dirty Water
05-09-2007, 12:33 AM
Interesting. I was under the impression that those diesels used Hydrualic lash adjusters.

05-11-2007, 10:37 PM
How much was the valve job... you have me worried about mine now.

lawn king
05-12-2007, 07:45 AM
They only adjusted the valves, the lifters looked good. It ran me $300. Tilt the cab and you are there, nothing in the way, pull the valve cover and you are in there.

don arkon
05-17-2007, 11:35 PM
Hey guys we run 5 npr all gas 5.7 vortec if you can work on a mower you can work on your own npr we service are own fleet cost very little