Yanmar L70 - Heavy (lots) smoke

[bmaverick]

If it is ex-DOD, the protocol is to drain everything, so that is unlikely. I think a perhaps bigger challenge is that almost anything could have been done or happened before the unit was scrapped. Sometimes the "non-repairable" cause is something easy for a civilian, sometimes less so, but I try to remember that even on the DOD side not everyone who touched the unit was an expert, and some units were used for training, e.g. stripping the generator all the way down to nuts and bolts and reassembling it.

@i012783 if you don't already have all of the technical manuals, I would suggest down loading them, especially the TM 9-6115-639-13&P manual, e.g.

Manuals for the MEP-831A

Here are the manuals needed to work on the MEP-831A. Please ignore the schematics in the TM 9-6115-639-13&P. The more readable copy is the last uploaded file, Courtesy of Member Kurt Klopp.

www.steelsoldiers.com

I think that the good news is that the Yanmar engine is rock solid, and easy to work on.

All the best,

Peter

Thanks Peter, I snagged them too. Added those to the Yanmar L-Series Parts Manuals we have on the YTOG.

BTW, popping up 1-level on the site shows so much more for these engines and repairs. Very nice!

 

[ponytug]

Thanks Peter, I snagged them too. Added those to the Yanmar L-Series Parts Manuals we have on the YTOG.

BTW, popping up 1-level on the site shows so much more for these engines and repairs. Very nice!

I think that the Steels Soldiers site has many folks on it who are extremely knowledgeable. I hope that the manuals helps others out.

I believe that the OP posted there as well.

All the best,

Peter

 

[90cummins]

I have repaired a couple of the mil surplus l70s & each one had a bad camshaft due to condensation in oil corroding the injection pump cam lobe which affects injection timing.
Wet stacking can be a problem with these.
I also had one that had a stuck injection rack. It
sat in my shop for quite a while fortunately it was stuck in the shutdown position.