breakin
#12
When I bought my truck new, the owners manual said there was no real "break-in" process for the engine. It specified no hard work for the first 500 miles for the axles to break-in, but after that,the truck should actually be worked (pulling trailers and such) to get everything to seat. In all actuality, it can take as many as 20,000 miles to fully break-in a 5.9L Cummins.
You can also go here:http://www.cummins.com/cmi/content.j...33&menuIndex=0 and contact Cummins directly either by phone or email and see what the experts say.
You can also go here:http://www.cummins.com/cmi/content.j...33&menuIndex=0 and contact Cummins directly either by phone or email and see what the experts say.
#14
Why would you baby a new rebuilt engine????? I worked for a over the road truck shop and after a rebuild you would start the truck drive it over to the dyno, strap it down and as the engine warmed we increased the load and would run it at full throtal for atleast a hour.
Same thing when I was in college I overhauled one of my tractors. After getting the tractor running I hooked it up to a PTO dyno and ran full power for almost 3 hours.
I was told that if you want a oil burner let the engine idle with a light load.
Same thing when I was in college I overhauled one of my tractors. After getting the tractor running I hooked it up to a PTO dyno and ran full power for almost 3 hours.
I was told that if you want a oil burner let the engine idle with a light load.
#15
#16
#18
#19
yup, babying it is not going to help things at all!
Like mentioned before, as these engines come off the MFG line they are strapped to the dyno fired up and once everything checks out they hit WOT!
One thing you REALLY dont want to do is leave it idling too long, the risk and effect of cylinder wash is much greater while the rings are still seating.
Like mentioned before, as these engines come off the MFG line they are strapped to the dyno fired up and once everything checks out they hit WOT!
One thing you REALLY dont want to do is leave it idling too long, the risk and effect of cylinder wash is much greater while the rings are still seating.
#20