A newer computerized diesel will have better fuel metering and
atomization. Also, tighter injection timing. Not to mention better
engineering of the engine mechanicals, better balancing, etc.
No mystery.
JR
Dweller in the cellar

wrote:

Why does an older enginr(class 8 diesel) vibrate more than
a new(newer) motor, same manufacturer?

i.e. what changes are happening as an engine ages/wears
that increases vibration/shake?

thanks
gary


--
--------------------------------------------------------------
Home Page: http://www.seanet.com/~jasonrnorth
If you're not the lead dog, the view never changes
Doubt yourself, and the real world will eat you alive
The world doesn't revolve around you, it revolves around me
No skeletons in the closet; just decomposing corpses
--------------------------------------------------------------
Dependence is Vulnerability:
--------------------------------------------------------------
"Open the Pod Bay Doors please, Hal"
"I'm sorry, Dave, I'm afraid I can't do that.."