Where is everyone #5

Is that Dave In AZ? Lol.

 

Looks more like a ramp truck operator.

 

HP musta been having one of those Kind Dreams

 

So close. Missed it by that much.

 

Correct me if I'm wrong but the cam journal is the part of the cam that rides in the block and a larger " journal" would just give you more area to ride in the bearing which would give you more oil surface. The cam lobe is the part of the cam the lifter or follower rides on and can be ground to any spec. And that's what gives you your lift and duration. So to me it sounds like the difference between a Big And Small cam is just a larger journal and more lube. Did Small cams have a problem with Cam bearings?

 

The way I understand it. Cummins changed injectors for the big cam and thus changed cam design. It was an effort to lower pollution. Yes even way back then.

 

Kinda sounds like the factory took a precautionary measure in anticipation of higher demands on the engine ?

 

Nothing wrong with lowering pollution if what you're doing makes sense.

 

You’re very humble and a great driver