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Ouch. Mine has gone back together nicely. Put on new rings and had the head cleaned w/ valve job ($265 at local shop). I built an injector tester. Two of the injectors won't pop (nozzle holes are corroded) so I'm looking at getting some parts for them. This will be good unit when it's all...

Couldn't find anything so I made my own. I've got the M12-1.5 die. Took a piece of 1/2" bar stock, turned it down a little (11.78mm), put threads on it, drilled a hole through it, and added a countersink to hold the flare from the pipe. Easy if you have the tools. I'll put up pics when I'm...

Injection pump installation question: The TM says to rotate the pumps CCW when installing them. Does that mean the control arm on the pump should be rotated full CCW relative to the body of the pump? Once installed, how do you ensure all the pumps are in the exact same orientation? Because if...

It's M12 x 1.50 . Anyone know where I can find a male flare fitting? (like the connection end of an injector)

Is it just an "L" with the dimensions as shown in the 253-24? If the governor spring is still engaged, won't it hold the rack in the closed position anyway?

According to the 253-24, you need one of these to hold the governor lever in the shutdown position when reinstalling the injection pumps. Do I really need it? Can I make one?

Anyone know what the thread pitch is on the 803A injectors (or injection pumps)? I'm building a bottle jack injector tester and I need to know what size fitting to get.

Yes, I was. It's very easy, just remove the crankcase access panel. Piston rings will be here Friday.

Have all the head gaskets for the MEP-803A been superseded by just the 1.47mm one (168-6112)? That's what I'm finding online.

The pitting is around mid-stroke. It's mostly centralized. The third picture has a little more pitting, but it is not as deep as the first. I can hone them some more.

How much pitting is too much? I'm installing new rings on all pistons. Some pits are about .001-.002" at the most. Will they eat up the new rings?

Thanks, jamawieb. That's what I figured. However, I broke an oil ring trying to loosen it up. Anyone have an extra? A set of rings is $45 on eBay so I may have to bite the bullet on that one. How about head gaskets, what's the best place to get one?

I pulled out a piston. The rings are stuck pretty good. Will they free up when it runs again?

Got it freed up. Rotates easily now. Here's a pic of the worst cylinder. The worst damage is midway down the cylinder. You can feel it with your fingernail, but not very deep. So do i just hone it out or get the cylinders bored and put on bigger rings?

Yeah, they're at mid stroke. They're all within about 1/16" of each other!

Is it normal for all four pistons to be at the bottom of the stroke at the same time? I guess they could all be at mid-stroke, but it's unusual to see them all lined up at the same position.

Got the head off. Looks like rust in each cylinder.

I pulled the side cover off the crankcase. Looks good. A little water, but not much and not much rust. I'm ready to pull the head off but I have to go get a deep 13mm socket to get the rocker arms off.

Duh. I knew that. It's been a while since I did real engine work.

Ok, I'll pull the injectors. Do you just grab the crank pulley to turn it by hand? It's kinda hard to grab with the radiator shroud in place. I did remove the top and both protective guards.