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I made some big strides on the HMMWV project this weekend. I was hoping to test drive it, but I ran out of time and daylight yesterday. I got the hydro-boost swapped out, bolted up the rear drive-shaft, swapped out the fuel tank inlet hose, installed my body lift pucks, bolted the body down...

Please keep this thread constructive and avoid bashing of political parties, liberals, conservatives, eco activists, alternative fuels, etc... Stick to the issue at hand, which is contacting folks in the MD legislature and advising them against this bill for reasons x, y and z. I will be...

A bunch of the screens have a Print View button. You just click it and then print.

Hey M939A0-A2 owners. We now have the P2P program hosted on the M939 TM's page: https://www.steelsoldiers.com/showthread.php?79228-TM-s-for-the-939-series-trucks If you haven't used it before, you are in for a treat. It is a dynamic TM with all sorts of animated diagrams, photos, specs...

The KDS Smart Start system uses a temp sensor. The PCB and sensor are sold as a matched set. CR2701 - KDS Smart Start System Kit - S3 | Kascar Real4WD.com your HMMWV® parts Superstore!

Hmm, definitely sounds like some sort of trouble code. I searched around a little on the net but couldn't find a troubleshooting guide for the smart start box. It sounds like you have done all of the usual stuff like the ground harness, etc already. Maybe a bad box? Did you get it from Kascar...

Thanks George. I have looked all along that lip. I'm guessing it is hidden under a layer of paint. The previous owner had the tub media blasted before it was repainted, so I guess it's possible the number was blasted off in the process.

Clarke or anyone else, Would you please post a picture of where this serial number is stamped? I have looked for it over and over on my 998 and have yet to find it. I just want to make sure I'm looking in the right spot.

I got the intercooler and intake plumbing finished today. It was a little tricky running the bit from the turbo to the IC because of the placement of the alternator, but I think it turned out great. I was planning on using all new silicone fittings for the intake, but I was actually able to...

That's pretty nifty. A little more sophisticated than my piece of chain. Where did you find it?

I have always been good about wearing a shield when I am welding. I usually use an auto-darkening unit, which works well in most situations, unless I'm in a tight spot. I don't usually have ear protection on unless I am going to be grinding for an extended period, but I may change my habits...

Here's another video. It was from a little earlier in the project before the cooling stack, etc went back in. I shot this one in the wrong direction so it's skinny, but you'll still get a good look at it.

:beer: Sounds like fun, Ted. I'm in!

That's pretty much all of the pics I have to share right now. I will get some more up after more progress been made. I am hoping to put a big stack of silicone couplers to use this weekend by making my intake and intercooler piping. Here's a short video of it running: Cummins HMMWV Project...

I decided to use a 24v electric cooling fan for now. I was going to try and make the Cummins mechanical fan work, but the Ford bus accessory drive brackets position the fan too high. I could switch to the Dodge serpentine setup if it is necessary. In the meantime, I think the relatively low...

Recently, I have been working on the exhaust system. I took a Cummins downpipe from a '93 Dodge and proceeded to cut and section it until it fit just like I wanted it. The dang dipstick tube was right in the way of the downpipe, so I bought a flexible Lokar unit that mounts to one of the...

Originally, I fabbed a bracket so I could use the stock humvee throttle cable and pedal with the Cummins, but that dang pedal was so floppy that it would travel an inch to the side before it even started pulling on the cable. I bought some new bushings to rebuild the pedal pivot, but still...

Moving the engine/trans back 3" and leaving the body lifted 2" seriously screwed up the transmission shift linkage. I tried adding rod to the old linkage, making a new linkage and re-bending the old/new linkage, but nothing seemed to get all of the gears to shift right. Finally, I gave up and...

So here are some pics of the engine going in:

So, a lot has changed since I made my last post about this project. It turned out that the "running" engine I purchased and swapped in had a bum injection pump or several leaky injectors or some combination of the two. That coupled with the stinking PCB that stayed on after the key was...