Mep-003 donor engine

[Scoobyshep]

Waiting for the engine to arrive I have found other tasks to do testing glow plugs filters etc. The fuel filters are still the military filters and good lord the water contamination was bad. Made me think the separator was never drained. So that was next and the mud buildup was the worst I've ever seen. After cleaning that unholy mess something caught my eye. The casting on the separator. Someone plumed it backwards. Same with both filters.

Short and quick lesson. Never assume the previous person can read.

 

[rickf]

If the filters were that bad you should disassemble the fuel pumps and clean the filters in them, they are probably just as bad.

 

[Scoobyshep]

If the filters were that bad you should disassemble the fuel pumps and clean the filters in them, they are probably just as bad.

Way ahead, just ran short on wrench time. The pumps were surprisingly clean

 

[rickf]

Sounds like someone was already working on it and gave up. I plan to eliminate all of those military filters and put a more modern filter/water separator on mine.

 

[Scoobyshep]

Sounds like someone was already working on it and gave up. I plan to eliminate all of those military filters and put a more modern filter/water separator on mine.

Judging from the paint these haven't been opened. I really think the strainer and filters being backwards was the major factor. Speaking of the fuel filters were the mil part number so its anyone's guess how little attention they got. If it weren't for this injection pump issue it would be a very clean set

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[Scoobyshep]

After 4 days of shipper shenanigans I have the donor. So when I get off work this morning the fun starts. Best part is the old was a Bosch pump and the donor is an Ambac so upgrade!

 

[Scoobyshep]

If I did the flow the pump test correctly it needs a #16 button. So now we play the waiting game again

 

[Scoobyshep]

Well the day has come, The new button was installed. I redid the flow test and #16 button was right on the mark. after putting everything back and bleeding she cranked right up. Here the video if anyones interested (pardon the mess I need a shop cleaning day) https://youtube.com/shorts/sqWFxrr_njs?si=CBFH-hHquiFjt9bb

 

[Chainbreaker]

Good job! Just need to adjust the idle down a bit according to the Hz gauge. Then load test & see how it performs under load.

 

[Ray70]

Good work getting it going again!
In the video I could briefly see the volt gage, which looked to be way above 240V ( assuming you have the machine set to 120/240).
Before you go too much further, verify the output voltage. If it can't be adjusted down with the knob, you may have blown transistors on the AC VR board, which would make you a perfect candidate for the replacement VR that @kloppk makes!

 

[Scoobyshep]

Good work getting it going again!
In the video I could briefly see the volt gage, which looked to be way above 240V ( assuming you have the machine set to 120/240).
Before you go too much further, verify the output voltage. If it can't be adjusted down with the knob, you may have blown transistors on the AC VR board, which would make you a perfect candidate for the replacement VR that @kloppk makes!

Voltage is good gauge is not. That's next on my list.

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