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I have been wondering how a 7JZ to another 7JZ could be a 3126 to a C7. Putting his serial numbers 7JZ00594 and 7JZ06815 in CAT SIS finds a 3126, not a C7—

I am confused did you mean to say, "I will be running new wires from the PPD so i..." Polarity Protection Device or Power Distribution Panel (PDP)?

There are PDF's of FMTV TM's in the Technical Manuals forum. I recall submitting Schematics for FMTVA1 for certain serial numbers. Perhaps that will help; I zoom in to enable reading and following routes. You likely will find other helpful TM's and parts lists there, too—

Page 2 lists many important things and what page and line they appear upon—

229A, 229B, and 3000 appear near the EMI filter. 229A & B going to the ECM (P188-67 & P188-65), 3000 looks like it is related to the warm up and exhaust brake switch through L11 (engine exhaust brake solenoid)—

Looking for specifications for lift pump pressure found this Adept Ape youtube At 7:00 minutes he mentions the pressure expected on the 3126: 55# perhaps 70 to 80#

It's not an adventure until something goes wrong— Yvon Chouinard

Is this the list with your o-rings?

Tractor Supply typically has a good selection of grade 8 bolts and nuts—

So, if I understand: 1— move water fuel separator filter to the tank— easily viewed at every fuel fill and walk about; 2— bypass mechanical lift (60 psi) pump at HEUI pump with electric 60 psi pump between water separator and primary filters. Essentially removing one pump and repacing geared...

I haven't owned a piece of CAT equipment in the last 30 years, but even those simply needed the injectors cracked while cranking. Pumping a primer pump is a new experience for me on a diesel engine on the M1078A1. The last time I pumped to prime fuel was on an outboard motor. Adding an...

Looking at CAT SIS2.0 It looks like the pump group includes transfer pump and solenoid, reman for about 15% less than new. Also, the reman is on the shelf at our local CAT Truck location, new would be order (1-2 days)— 134-0467

On the 2003 3126b M1078A1 the tee is rear of the primary just under the structure carrying the rear cab lock—

We lost our primer pump recently and now that we have it all back together it looks like the HUEI is gone. Only 283# at crank. Fortunately we are home now. I was thinking about trying the solenoid, though with the potential for losing $1,000 injectors I am thinking whole manufactured if we...

Our experience, unloaded, is we always run out of traction before power. I don't recall a time power was even a consideration. Without lockers we must keep everything on the ground, old school off roading. With a bread basket locker I'd think EcoHubs are just what you need—

When you flip the power switch on the dash one of the protocols, like the inlet heater activating then going off (when it is warm), is the ABS computer checking all four (on an M1078/9) relays. You can hear them click: front, rear, front, rear. If the controller is dead or not powered, no clicks—

ditto—

Difficult to assess without knowing how much surface area the contact between frame and bed occupies and the material's ability to handle dynamic loads during travel. Though reducing thermal bridging is always a good idea, not silly at all—

The coffee can stored atop—

I haven't figured out the difference between Engine Torque and Engine Load either—