[Shotimes] rod bearings

Donald Mallinson dmall@mwonline.net
Thu, 14 Aug 2003 09:23:50 -0500


Paul,

Of course, as we have already discussed, the lugging issue 
is for gas engines mainly, although you can lug a diesel, 
they are designed for extremely low rpm use.

When my oldest son still had his own semi, I got to drive it 
in a large parking lot (empty, a good thing!) one day.

I have driven diesel cars before, and even they surprise 
with the small rpm range, but this truck was amazing, you 
barely get going and have to shift, and shift and shift.

By this time I am blasting down the parking lot in fourth or 
fifth gear and going all of maybe 15 mph?

Forgot the redline on the tach, but I think it was something 
around 2800 rpm.

Don Mallinson

Paul Nimz wrote:
>>The definition, for this purpose of "lugging" is running the
>>motor at extremely low rpm (generally, for any motor,
>>between idle and about 1200 to 1500 rpm) and LARGE throttle
>>openings!
> 
> 
> I use to drive a Mack 18 wheeler back in the day, that had a redline of 1500
> rpm and a 5 speed tranny to boot.  Thing would really haul the coal and it
> was nice not having to shift all them gears....
> 
> Paul Nimz
> '97 TR
> '93 EG mtx