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Found a new one online & here's a picture of it if that helps. Never seen one myself, however it does appear to be mfg'd with a pretty deep race type of groove.

Sounds like an intermittent electrical issue somewhere in the AC voltage regulation circuit. The MEP-002a being a 2-cylinder diesel with both pistons rotating in unison creates substantial vibration. The rubber/metal "Control Cabinet" isolators used to mount the cabinet do go bad eventually &...

Yeah, I was wondering if you might miss that post & later went back and flagged it to you in hopes you might see it before reassembly. Regardless, your ball bearing is there so you are good to go! I too noticed that the ball bearing would not fall out with the needle bearing installed, so I...

That's great news! Though, VERY ODD that the Governor Arm somehow got tweaked so far off without any known event to cause it to get bent/tweaked. However, what Ray70 suggested earlier in Post #5 up above regarding potential "Sticking Governor Linkage" inside the little piston-like cylinder...

Now... anxiously awaiting the results of the governor/flyball etc. inspection. Gotta be a problem somewhere that explains the governor erratic overspeed issues your experiencing. @Offgrid12 Edit: Also, check to make sure that there is a "ball bearing" at the free end of the governor shaft...

Great job on the Roll Pin delete mod!!! You definitely eliminated the pitfalls of the gear chewing roll pin potential. :cool:(y)

So, in Post #65 photo #2 position is the consensus? That was my initial inclination making the most sense to me, and apparently Ray also, from a mechanical contact perspective with something that moves in & out (the governor cup).

That's the logic, less friction with small bump protrusion facing governor cup that I also believed. However, after reviewing both the -24 parts manual & -34 it caused me to question exact yoke orientation. It doesn't show the yoke's orientation profile with those bumps clearly at all given the...

Also, make sure when you reassemble the gear cover that you get the yoke on the governor arm shaft, that rides against the flyball dish, in the correct orientation. There is a flat side and the rounded/arched side. Though now looking in the -24 parts manual it's a bit confusing to tell exactly...

I would assume you checked the movement of the governor arm and it moves freely with no binding or slop? It uses needle bearings on each end where it mounts in the gear case and if they were worn or seized it could potentially cause issues with free governor arm movement (binding). When you...

Great news that you got the case cover off without any damage! Also, generally I'm a "if it aint broke don't fix it" kind of guy... but if it were me & I was into the assembly that deep I would strongly consider implementing the suggested "Roll Pin Fix" shown in post #43 above using the 2'nd...

OK, so I've never had to pull a Blower Wheel "knock on wood" but I wonder if somehow using a cold treatment (something like "CRC Freeze Spray") on the crankshaft end & heat on the blower wheel as you are currently doing might produce enough immediate contraction/expansion to allow Blower Wheel...

Regarding the fix outlined in the video contained in Post # 41 directly above /\. Wondering if using something like a shoulder screw might work? Something similar to this: MTD 738-04216A MTD 738-04216A Shoulder Screw (mowpart.com) or a similar custom machined threaded part? It might be...

@Ray70 So... if Offgrid were to find that Pin (Item #10 as noted in post #35 above) as the issue, or even if it weren't the issue & it was taken apart what is the fix to ensure that it doesn't ever come loose & wreak havoc in the engine internals? If that pin were found detached, I would think...

I believe Ray is referring to the parts identified on Printed Pg's 168-170 of the -24P Parts Manual. There is a Yoke assembly there, that works the governor shaft, plus the flyball A'ssy shown on those pages. I think the pin he is referring to is item #10 (Spring Pin) but not 100% sure.

Also, if you have someone that can help you video or work the throttle adjuster knob, it might be informative. After it starts have someone push in on the throttle control adjuster below instrument panel and then work it back out (Slow RPM then Fast RPM) while filming the Governor Assembly...

In reviewing the photos, I don't see anything that jumps out as being off. A close-up video with Cover Open from "starting to running" might now tell us if the Governor mechanism is acting on the IJ Pump or not. The fly ball mechanism is reported to be darn near bullet proof, but you never...

Also, with engine off, can you temporarily raise & open the "Close to Run cover" & take a detailed still photo or video showing of the Governor Linkage Assembly? Take a shot looking from left-to-right (top of Rod assembly coming up from IJ Pump over to the attached spring as it attaches to the...

In reviewing your video, it sounds like your engine is racing well above 1800 RPM. I'm wondering if perhaps there might be an issue with the Governor function operation. Just to cover all the bases... have you taken a look at the "Governor Arm Assembly" mechanism? With engine off, raise the...

Since you have ~3000 hrs on the Hobbs and due to effects of MEP-002a's long term vibration on components & wiring you should open the Control Panel (loosen the Zeuss Fastners at top of panel & it swings down (with engine off & battery disconnected of course) and closely inspect inside looking...