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For the secondary relay, I purchased the same kind that some other guys in this thread have used. I took special care to find ones that were rated for "continuous duty" even though the secondary relay is only momentarily engaged for the glow plugs because Amazon is sketch sometimes. I wanted...

PCB- Prestolite Edition: At least for the Prestolite box, Kboy is right. If you want the "Wait" light to function, it needs to be connected to the (-) or ground side of the secondary relay. -The Prestolite box has three relay-looking devices in it. You can safely reuse the steel-bodied...

TOB- Is post #51 in that thread still the most up-to-date solution? The thread is long and winding and I want to make sure I'm using the latest and best. You mentioned making a video. Is it out there somewhere? With the exception of the manual glow plug button, will I be able to fit...

Ah, ok. So either find another Prestolite box or do a multi-point upgrade to some sort of EESS and a TSU and probably glow plugs as well. I've had this truck for...3-4 years now. It starts like a champ in very cold weather so I don't think the glow plugs are fried, yet.

Grrr... I went to test everything out and the alternator is working. I'm pretty certain that it's the EESS box now. Obviously, I'll confirm this with the test procedure when it fails again. I have the Presolite box, not Nartron. Black, silver label. My understanding is that Thou Shalt Not Mix...

It's only self-corrected once. Sort of intermittent. ;) You guys have put me on the path. I'll walk it awhile and let you know where it takes me.

Hi Mog, yes, the blower motor still works. I've downloaded that troubleshooting guide and I'll report back after I've run through it.

@Coug Ah, ok. I knew there was a relationship of some sort between the two. I downloaded the 200a alternator troubleshooting guide. The steps are simple enough. For testing purposes, is there a way to simulate the signal from the start box to trick the alternator into starting?

Hi all, I have a very early USMC M998 with 3-speed transmission. In 2005, it was refitted with a 6.5L engine with the 200 amp alternator. When I start the truck, the alternator no longer puts out any power and the smart-start box keeps cycling the glow plugs. The problem seems intermittent. I...

Thanks. There are a few bars that all look very similar. I watched a few more YT videos and was able to make the bar I have, work. It'll go faster now that I understand the process.

Hey all, I'm looking to break down some NDT's. It looks like there are 2 tools to remove the locking ring. I have 33224 T23B. I need the tool that fits into the notch on the ring so I can pry it out of the groove. Does anyone know the proper number for that?

It seems that I'll be compelled to buy a gallon jug of liquid or a large tub of paste, so I don't want to buy a lifetime supply of the wrong thing. Which do you guys prefer- paste or liquid? Any favorite brands? Any brands to steer clear of?

I saw the notch but it didn't click as to the purpose. Thanks.

Quick question: Once the run-flat is inserted, which way is the tire mounted on the inner (larger) wheel piece? The run-flat is asymmetric, having a large lip on one side. Which way does that lip face when mounting the tire on the wheel? Thanks!

Took the M813 for a maintenance jog yesterday. I ended up stuck behind an elderly couple in a Mercedes SUV. They were poking along at speeds well under the speed limit. I watched traffic piling up in my rearview mirror and I'm dead certain that everyone was "blaming the ugly military truck at...

Somewhere, way back in this thread a few people reported brake line failures on M809 trucks near the transfer case. Since it was more than one person reporting on the same place/same failure, I crawled underneath with a flashlight and just manually traced everything. No defects that I could...

Thanks for posting these photos. I needed ideas for driver seat mounts. I'm installing Jeep Wrangler YJ seats.

Ok, seems simple enough. Thanks.

Are the original military generators regulated by any kind of solid state electronics or is the voltage regulator mostly mechanical in nature?

Thanks, I'll do that. I'm not even certain that I have a problem. I just thought I heard a noise. I found a pretty good hour long video of a complete hub reassembly. It requires some tools that I don't have, such as a travel indicator, dial indicator.