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I was wondering if that might have happened on more than one rig. Absolutely agree, there is enough confusion without the components location differing from what the manual calls out. And it is imperative that the identification of the wires are confirmed before moving things around, just in...

Ok Yep, the starter needs help for sure. According to the wiring diagram, relay K1 and K2 should be exactly the same internally. they should be normally closed from terminal 30 to 87A and open from 30 to 87. I dont know how the other three relays are configured to operate, but if you can...

Heres an assumption that is related to the white wire at the starter sol screw terminal on a diesel rig - that it is for the cold start either injection system to make it an automatic operation. A temp sensor switch would control when the either gets injected.

Ah ok, that sheds some light on the white wire on the starter sol screw terminal. Do you know where the other end of it might go to? It should dead end in a plug or pig tail somewhere I would think. I do want to make sure that the blue wire was not a repair/bypass of the white wire on terridax's...

Alright, lets see. If the new relays are the same PN as the old ones thats good, if not there is a slim possibility that the normally open and normally closed terminals are opposite of the old relays. Continuity checks from terminal 30 to 87 and 87A on the new and old relay to be certain...

Yeah that blue wire, If it is indeed the wire 22 (213), being constantly energized is not right, and that's according to the wiring diagram, not just my opinion. So on page 3-78 it shows the location of relay K1 (2), if you pull that relay and the voltage on the blue wire goes away, that is...

Ok, two verifications: (1) that is there is 24V at the top large terminal that the battery cable hooks to on the starter solenoid. (2) That the continuity of your hand held switch is good. If thoes check out, disconnect the two wires from the screw terminal and test continuity from the screw...

Put one lead to the top large terminal (battery positive cable) and the other lead to the flathead screw terminal, that will give your hand-held switch direct control of the starter solenoid. You can even disconnect the two small wires from the screw terminal if you want, but I don't think its...

Have you actually tested the solenoid on the starter itself? I have read that you tested the starter motor, but not necessarily the solenoid, or the contactor inside the starter solenoid. In this picture there is a wire connected to a small terminal on the back of the starter solenoid, that is...

This pic shows my method of madness. A lock bar inserts into the back of the spider gear and is actuated with a shifting ring and shift fork arrangement.

It sounds like the starter solenoid - i believe you tested only the starter motor the way you jumped the terminals - you can test if you get voltage at the solenoid + terminal (smaller terminal) when the starter switch is engaged, if you get voltage, that indicates its in the solenoid - give it...

No quarks or tricks there, if it has fluid and the belt is good condition and spinning the pulley the correct direction, then all should be working. I have seen the pump shaft break inside the housing and the pulley just free wheels. Other wise the pump element can go bad and there is a valve in...

Hello, FNG here, I'm designing a manual locker for the M151 differential. I thought I'd get on here and see if there is enough interest to pursue making plans or a kit. I'll get more detailed if there is.