Detroit Diesel V12 going to show
1968 Kenworth K125 hauling tractors to a show. Carla also wanted to redeem
herself from taking a 20 second video, so brought the camera! Will get one
of the Emeryville loaded when we have a chance.
Mack with V12 Cummins
If someone can remind me what model truck this is, I'll include it in the
description. It has a V12 Cummins motor, which I am told is like two
NH220's in a V configuration. Not a very interesting video, and poor
quality, but I thought it should be available.
UPDATE: This is a 1957 Mack LRVSW belonging to Aycock LLC of Hummelstown,
PA. Aycock does rigging/hauling and industrial construction. As for the
motor, I keep hearing NHV or NHVB, or 1710, was told initially and am
inclined to believe that it is a V1486, being that the information was
available at the time...however, I have no real clue.There was info taped
to its window at the show, but damned if I'd read it...
I wish there was more info on these motors floating around on the web. All
anyone seems to care about is Dodge pickups with Cummins diesels; no one
knows where it all began...but isn't that why we go to Gerhart's every
How to shift a Spicer 16 speed
How to use a Spicer ProShift transmission in my Kenworth .
It is a 16 speed with overdrive.
The 16 speed is similar to the 14 speed which is much more common, except
the air-shift pattern is different.
The first 3 gears in the main box ( controlled with the gearstick ) each
have 4 gears on the air shift ( the blue control on the gearstick ). This
gives 12 gears.
The top 2 gears on the stick you only use 2 airshift positions , like on a
13 or 18 speed RoadRanger , so this gives 16 gears in total.
A compound shift is changing gears with the air-shift and main gearbox at
the same time.
You don't need to use the clutch except when starting and when using the
airshift in 1st gear in the main box.
All this info is easy for truck drivers who can operate a Road Ranger ,
which is the most common transmission in Australia. But it is a harder box
to use than a Road Ranger.
V12 Detriot Diesel 525HP
Setting the engine up and breaking it in.Remember this engine is just being
started after a rebuild so that's why it's smoking from the assembly lube
and the rack will be set-up to stop the hunting etc etc. Then the oil is
changed and the engine painted. These engine's go into Euclid mining rock
trucks,and they were in many other equipment/vehicles.The engine has
rebuild heads,turbo's, blower, water
pump,all internal parts and the air compressor All done in the great north
Mackjack525's exhaust note challenge
Mackjack525's Exhaust note challenge.
The truck was due for new injectors, that's why I haven't shown this
before. Too much black smoke. Truck grossing about 80 tons or 179,000 lbs.
Power by Cat 3408.
Check out Mackjack525's challenge on video responses.