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The pre-heat engages the solenoid that powers the glow plugs, the aux prime and main prime positions run their fuel pumps.. and actually, the start position triggers the fuel solenoid at the IP.. but not the starter. I didn't go through the wiring when I was having issues with the fuel...

Now I'm experiencing a "no-crank" situation. The start switch isn't functioning as it should. Every position does what it is supposed to do other than the "Start" position. I can jump the solenoid on the starter and it cranks no problem. Are there any fuses between the trigger wire at the...

Mine went together with out much fuss. I cleaned every component... solvent dipped the case and disassembled hydraulic head. Cleaned everything really well and re-cleaned each part as it went back together with some light machine oil on every moving component. Spins glass smooth now and...

I don't have any pictures of that portion. If I think about it, I'll pop the holder off and snap some pictures.

Got it done. If I can, I'll get it reinstalled tonight.. I put together a post with detailed pics of the rebuild process. I posted it here... https://www.steelsoldiers.com/showthread.php?183913-Ambac-M-50-Rebuild-w-pics&p=2181691#post2181691 It was very simple. I noticed when I pulled the...

After cleaning. Piece on the left is the plunger metering sleeve. The little piece on the end of the throttle shaft slips into the groove on the sleeve and controls it's position. Back together with bushing and C Clip in place. You can see the metering sleeve inside the pump body with...

Hey alls... Just buttoned up the rebuild on my MEP-003a injection pump (Ambac M50) and documented the process. Member "jamawieb" gave me a write up on the tear down and it was very straight forward. I'll post his write up in steps with pictures from my rebuild and some details on what I had...

That'll certainly help. I'll see if I can take pics of each "step" and perhaps put them together for others to find later.

Jjust short for glow plug. The wire ends are broke off on a few. Figure I'll cut it all back to good wire and replace it all while I'm replacing the plugs.

Said screw it and bit the bullet. One of the injector feeds was under pressure. The others were dry. I'm going to say the plunger guide is fried. We'll see. I'll rebuilt it tomorrow and go from there. I also ordered new glow plugs and manifold heaters. I noticed today that the GP...

Rain is gone and sun is out.. so got to work on it again for a bit. Pulled the delivery valve back out and cleaned the remnants of the little spacer (all that was left was few little black chunks) out and installed the new spacer. Installed the new DV spring and put it back together. No...

Still waiting on IP parts. USPS apparently lost my shipment from Ambac so they are overnighting the parts on their dime. Said I could keep the others if they ever show up. Score for spare IP parts. Lol.

Were you starting and shutting down on blended fuel?

Have you ran any stronger blends then 50%? What issues came up if you did? Thanks for the input

Hey alls... Was curious if anyone here was running any type of alternative fuels in their generators. We run multiple vehicles (3 7.3 IDIs, 1 3.9 Cummins) on processed waste petroleum based oils (motor oil, atf, hydraulic, compressor, etc). It is centrifuged and thinned. The question is how...

Ordered everything. Thanks to the MEP Wiki.. I found the phone number for Ambac and got the parts I needed for less then half of what GMG wanted for them. Ordered the delivery valve spring, reseal kit, and the plunger guide (just in case). They'll be here this week.

No problem.. I've rebuilt a couple pumps so it isn't all that new to me but I'm still in a debate on whether or not I want to pull the pump and go through it or just try and replace the few parts I know are missing/damaged without removing the pump. I haven't looked at the manual yet as far...

Ok.. I've got the re-seal kit, delivery valve spring, and plunger guide in my shopping cart ready to go... Any other common failure items to order while I'm at it? Suck part is I'm at $145 and I could have snagged a reman pump for just over $200 last week. Blah.

I've heard in some cases that it being missing can cause the engine not to start (not build enough pressure to pop the injectors). I'm not getting hardly any smoke (same as I was with the plunger frozen). I would think that even if timing was all over the place, if the injectors were opening...

Also... I keep reading about a spacer that should be under the delivery valve holder but mine didn't have a spacer. All that I found was a spring and the metal piece under the spring that sits on the plunger. No plastic spacer. Does anyone have a picture of the spacer and just how critical...