Ran before parked....

[CUCVFAN]

I always get a kick out of this. It's sort of along the lines of the "Ran when parked" story, but not exactly. I like when GL says "Unknown Running Condition" and then includes pics of the trucks freshly "windowed" block.

Of course, the first pic might explain the second. Who was responsible for the placement of THAT sticker???

Edit: It's a Cummins....

 

[BKubu]

If any truck should be residue, that is the one! It is no wonder that they blew the motor up running it at such high RPM!

 

[FMJ]

What is condsidered high rpm?, is that a LDS?

 

[CUCVFAN]

Sorry, I should have said this is an M818, Cummins NHC-250. They're rated at 2100 max RPM....

 

[FMJ]

Looks like they took a tach out of a deuce.....

 

[jasonjc]

2300 is too high????

 

[jwaller]

2300 is too high????

um... YES! 2100 is it unless you want to be doing motor work soon.

 

[Westech]

I beg to differ.. you can run it to 2300 no problem. Ask AM. and the military settings is 2150 ish so it had to been adjusted to get over that RPM.

 

[WillWagner]

2100 is the loaded governed speed. Unloaded governor break is around 2400 RPM. They will run and stay together up to 3000, but not for long periods of time. They get real quiet at that RPM

 

[bulldog_mack13]

Glad you posted this thread , is that the same for 813's and 817's and 816's etc.?

 

[Capt.Marion]

Glad you posted this thread , is that the same for 813's and 817's and 816's etc.?

Yep. Same motor.

 

[powerhouseduece]

found another sticker placement award, on a M813

 

[Monkeyboyarmy]

My buddy runs his Kenworth road tractor with a Cummins N14 (nearly the same bottom end as the 250 ) at 3500 when he is at the truck pulls.After a year of abuse,he'll pull the pan and check the bearings...always good.He does have stiffer valve springs and uses high quality racing oil in it though.Every time I drive my 816 I think about turning up the rpm.You just can't get going fast enough to catch the next gear with any momentum.

 

[Capt.Marion]

My buddy runs his Kenworth road tractor with a Cummins N14 (nearly the same bottom end as the 250 ) at 3500 when he is at the truck pulls.After a year of abuse,he'll pull the pan and check the bearings...always good.He does have stiffer valve springs and uses high quality racing oil in it though.Every time I drive my 816 I think about turning up the rpm.You just can't get going fast enough to catch the next gear with any momentum.

Yep, that seems to be the deal with most MVs, closer gears and you'd be in hog heaven.

 

[pwrwagonfire]

hmm, I had a car that did that to me in a thunderstorm.....