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This is the switch you circled...

^^THIS is correct. There is a fueling mode called throttle leakage on the mechanical pumps and "motoring fuel" on electronic engines, Cummins anyway, other manufacturers have different terminology, but it is same same. It is there for a few reasons, one, if there is no fuel circulating...

Hey Mike, Isn't that the truck that had a bee hive in it?

Unless you re gear, you will loose road speed, 4B 2500-2700 rpm unless you jack the RPM. What does the 6.2/6.5 turn?

You will need to use the fan and hub from the original engine, it should bolt right up unless the engine is early and uses 8mm capscrews to mount to the engine, if that's the case all you will need to do is make the holes in the fan hub larger to accommodate the larger capscrews. The fan on the...

Old school! I work on them pretty regularly. Some are geared/have the top gears locked, out so they only go 20 mph or so.

HMRO. look at the jpeg I posted. At the bottom, it shows the related options. Those are for the plumbing, like the drain line and coolant plumbing. Remember how to look them up on QSOL?

It just means the manifold that the engine came with mounts the turbo in what is called the low mount, rear out, LMRO, position. He wants to locate it to 1 of 2 positions, high mount rear out, HMRO or center mount rear out MMRO. HMRO will have the turbo mount flange facing up and the MMRO will...

Ever seen compression brakes and how they work? Not simple by any means, it all needs to be timed or massive engine damage will result.

Looks like the spring is on the wrong side of the butterfly. Look at the flow arrow and look at the bevel of the butterfly.

ISC 8.3L, roller followers in 2003-4. before that, flat slider tappets, ISL 8.9L introduced in 1998, looked the same as the CAPS ISC but stroked 10mm and had roller followers, ISM is 11L and has always been a roller follower engine and is not in the same class as the C and L. C has always been a...

Negatory, the tappets are flat sliders. They went to rollers 2004 ish on the C and 1998 for the L. Still, even with some type of "conditioner" in the oil, I would be concerned about valve train components holding up to added pressure of a taller, heavier wound spring that wasn't made for this...

I have one of those in the spare parts shed. They work well.

Gimp, It will be fine mounted there, OP, The rockers, IIRC, are just stamped steel and the cam is old school cast iron. I would run it like it is now. The truck is 14k, it isn't heavy. I feel the 60 lb Cummins springs will be too much for the valvetrain on the LDT

What? Under the electrics, it's STILL a 4 cycle diesel engine. How can you be a "mechanic" if you can't understand, diagnose and repair BASICS? Wait, UTI/Wyo tech grads, right?

Injectors do not get adjusted. You can drill and tap the fitting going into the fuel pump and take your fuel pressure reading from there.

PM me both of the ESNs and I can tell you if the mount pads are the same. I don't think the FW hsg on the L will work on the C, the blocks are different, the service part for the block for the L is not backwards compatible to the C in the truck now

The cam will be out, I wouldn't screw around, just put a new cam in it while it's out. Put new push rods in it too, the adjustment seems to go away quickly if all the tappets and push rods aren't replaced as sets. A 10 t press will take the gear off. To put the gear on, it must be heated. DO...

If the ring gear is on the converter, you'll need to find a regular flywheel with the same tooth count as the Allison ring if you want use the starter that came withe your package. QSOL has no listing for a flywheel or flex plate, soooo, the starting device was supplied by the OEM as well as the...

Yes, SOME otr trucks are running electric fans. Also, all of the new New Flyer busses are electric, multi speed fan set ups. Those are on side radiator/CAC cooled ISLG engines, they run warm, way warmer than diesel, They work great, less HP robbed by a giant hydraulic pump, less noise, shorter...