While waiting on DEUTZ engine parts, I turned my attention to the 7MC-2A.
It hasn't been getting fuel to injectors and injection pump wasn't pumping fuel, even though the fuel pump & fuel solenoid are working properly.
Manual isn't really clear (to me) and I just started taking the governor cover off. Was expecting springs or something to pop out.
Once the cover was off, I saw the problem instantly.
The fuel rod was covered in very light rust and wouldn't move. It was stuck in the off position.
Sprayed the fuel rod and area with penetrating oil and used a brass punch and hammer to lightly tap the rod loose.
(Pics show the fuel rod after it was loose and sprayed down with lube)
Wiped up the excess oil and as much of the very light surface rust that I could.
Worked it back and forth until it was moving freely and springing back to it's intended position.
Cold weather Extra Start Fuel button even works now.
Left cover off and already had the fuel lines at the injectors loose.
Cranked the METZ engine and fuel started coming out right away.
Tighten the nuts and cranked engine again.
It fired right up and had great oil pressure and sounded great.
Not bad for an engine with 3218.7 hours
Starting building air pressure right away.
Blew some black smoke for about 10 seconds and then cleared up completely.
Air compressor is working as designed and builds and holds air pressure like its supposed to.
A little blowby from the crankcase but nothing excessive.
Exhaust is now blowing clean.
Fan that cools compressor fluid is working as deigned.
Used a temperature gun and both cylinder head temps are within 10+- degrees of each other.
After running engine for about 15 minutes, a problem has shown up and, by the looks of it, existed before I bought it.
The #1 cylinder pushrod tube is leaking oil at the base. Quite excessive. Much worse that what pic shows.
Nothing else is leaking except this one spot.
I do have to replace two hydraulic hoses that are weeping lightly.
Best part is, the cylinder head has to be removed to get the tube out to replace the orings. Perfect!!
I ordered the factory Metz cylinder head gasket kit and tube orings. I will be replacing both #1 & #2 tube upper and lower orings.
Made a new cover gasket using Fel-Pro material. Removed the old gasket pieces, cleaned area and reinstalled cover.
Oil leakage was same with or without cover installed.
After starting and stopping and restarting engine while warm a few times, I noticed it seemed to be cranking more than it should before starting.
(Air Tank Empty as required per TM before restarting)
I adjusted the valves and that solved the problem.
Starts right and runs better than ever.
At least another week minimum before parts get here for both machines.
It runs and produces air!!
It's worth the time and expense to fix the issue, since this is the one I'm probably keeping.
Not sure about the other two yet.
