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I'll be there today when they pull it apart and will post pics/video. My next play is to load it on my RGN trailer and drive it to Simp's for the week. R

Unless it is something in the head and obvious (which I doubt), we'll pull the motor out and do a full rebuild or replacement. To be fair, I have less than $800 in the repair thus far, including parts and labor.

Dunno. Honestly it doesn't sound like the liner did--it sounds way worse. With the bad liner I could at least drive around a little and only had a little blowby. This made really bad noises, lots of smoke out the top of the motor (blew the cover gaskets), obvious loss of power. Mechanic is...

Man I was excited. Finally, got my truck all finished. The mechanic said come get it. She was purring like a kitten. Sounded great. Ran it up to operating temp, checked the coolant and oil. All seemed well. Made it a mile. Now the motor sounds really, really bad. Towed it back to...

Tow4 with the win! I was going to say register in Montana for permanent plates, but it looks like Florida does permanent plates on military vehicles, too. Good to know!

I ordered new rings, new piston, and a new connecting rod with bearings just to be safe. The question is about which piston is correct. At this point, I've ordered both, and we'll see when the boxes arrive which one fits.

I only need a single piston. I've ordered the 4 ring kit, but it won't be here until later this week. Trying to figure out what I need to put the engine back together "right".

So here's the piston number of what came out of the engine. Decidedly a 3-ring piston. I've ordered the new piston already, but it's a 4 ring piston. I found this piston on the ebay. Are the rings the same?

ESN 11647977

Working on putting this M936 together after a sleeve came apart. The parts house says they can only find three ring pistons to go back in. Four ring pistons came out. The guy says there will be no difference and the three ring piston will work just fine (if not better) than the other five...

I have an MEP-804B (??) Fermont 15Kw generator with the yanmar turbo diesel. I changed all the fluids and filters, bought two new batteries and a couple of missing gauges. Got everything ready, hit the starter and all I get is a "click" from the left driver's side firewall. It looks like a...

Thanks Simp!!! So it looks like the pressure goes to the radiator overflow and the power steering pump at least. I would think the crankcase and other breather tubes are connected to something (not just open to the atmosphere).

He's taken the other two heads off and says they are good to go. I looked in the other cylinders and they are smooth as a baby's butt. The destroyed cylinder (#5) looks really bad, but the block is good to go. He told me that he would replace as much as needed, but in his opinion nothing else...

Mine are both gas. I'll have to go find an electric oven or something, unless someone else has an idea.

I have an M936, the seat is badly faded (to NATO blue), and torn. I've got a good upholstery guy local that says he can recover the seats, but I wanted to make sure I use original military cloth (or close to it). Anyone got a source for the seat fabric?

How are you guys putting a "dummy load" on your generators? I've got an 804 that is about ready to start running and testing, but I want to run it up to test the operation prior to plugging it in to something it might damage.

While my truck is awaiting a new cylinder, I was reading the TM's and found that many M939 series trucks have a "deep water fording kit", with a lever on the dash to activate the deep water kit. Apparently it blows vent tubes with positive pressure while in deep water. My M936 came with a deep...

I don't see any kind of electric/hydraulic/wireless thingy on that page. Got a linky?

I have a small seam leak on the hydraulic tank itself. Anyone have an extra sitting around? Opinions on repair or replacement?

Could've been, but I doubt it. Cylinder 5 had trouble, all the others look good. I found a cummins guy that is going to swap that single hole in-frame for $800, including parts. Truck should be up and running in a week or so.