PRIME drivers...What's your 20?

Sitting at Smithfield in Tar Heel NC. Still killing piggies to get my load ready, Was supposed to be 0600, niow it is 1000.

 

Got the overhead done, and a CAC check - no leaks. Waiting on a drop n' hook from Indiana to roll on the yard - heading to Ochelata OK for ASAP.

 

Did u ask for the cac check or was it part of the overhead?

I57 Illinois headed for schnucks in Bridgeton.

 

IP could you please explain what an overhead entails?
thanks.

 

They pull off the valve cover, and set all the mechanical tolerances associated with the valves, injectors, jake, etc - essentially a "tune-up" for a diesel engine. It's a one-day affair usually, depending on the work load in the shops. The Prime shops can do them, or you can get it done at a Detroit Diesel shop. I got mine done at Central Detroit Diesel in Springfield, $250, and had it set up through my RA guy so I was on the list for the morning I arrived at the yard.

I can't say for the Cummins engine, but the specs for the DD15 sugguest you have it done at 100,000 miles and every 500,000 thereafter. In my case, it just seemed that the engine was running a little rough during hard pulls, and my perception was that I was downshifting on grades sooner and more often than in the past. Time for an overhead. You should be monitoring your fuel consumption carefully before and afterword (and you should do that as a matter of course) - it's possible for the overhead to be set improperly. Your fuel economy number will show this within a couple of weeks if there's a problem.

@SE, I asked for the CAC check specifically - it's an easy place to loose a lot of power. Guys who tell you they get better fuel economy at higher speeds can certainly have the turbo working harder to cover up a leak. The shop just blocks off the air intake at the filter, pulls the high pressure air hose off of the intake manifold - and puts on a fitting with an air chuck and a gage. Pump it up to 30 pounds, and see where it's at in 30 seconds. The ideal is zero pressure change - the manufacturers set a maximum rate - 5 lbs per minute usually - that's easily achievable by the assembly line guys, so they treat it as a go/no-go check within that tolerance. I asked specifically for the leak rate in lbs per minute - leaks only get worse.

 

At the piot in Milford CT, been in this area since Tuesday morning and finally get a load out of here that picks up tomorrow between 0700 and 1500.

 

Tarheel load cancelled, sent to Newport News to get dead piggies, Up to Sunbury PA, then to Elizabethtown PA for Chocolate, Headed to Hannibal MO. Sitting at the Somerset plaza on the PA turnpike

 

Harrisonville MO... it gets me out into the freight again. Preplan picks up in Crete NE, and delivers to the land of fruits 'n nuts. Gonna see if I can dump it in SLC.

 

Must be slow up here. I'm waiting for a door at my 90 and just got a preplan with a 500 mile deadhead to VA.

 

Going around Columbus Ohio, Student driving the last few hours he needs, Deliver tonight or early tomorrow for Gemeral Mills, Then it is off to SPRIMO for testing