Can anyone recommend someone for the repair of a small diesel generator?
The engine stopped functioning.
Since you say it was running for an hour and then stopped.
Did you replace the Fuel filter AFTER this happened or just before ?
Bad gas perhaps, have you purged the lines after changing the filter to void trapped air?
I used to have one of these machines and you're right, you have to completely disassemble it to get access to the engine. *The fact that it ran for an hour after you changed the filter would suggest that it has bled through, but I did have to crack the injector pipe to get mine to run after i changed the filter. *But one gulp of air in the fuel line and will not run and you'll have to bleed it.
There is a decompression lever on top of the engine which I only discovered after I took the covers off. *You can access it through the door, but you need to know where to put your hands. *This lever will allow you to crank it on the starter freely enough to bleed the injector line.
They are quite basic and reliable engines. *The only thing I can suggest is that you remove the injector, clean it, bleed it and give it a try, *Failing that the only other causes of not starting is low fuel pressure or low compression which would mean a rebuild and would have no idea where to get parts for it.
In every diesel I've the fuel to the injectors had to be primed before it would start.I filled the tank. It ran for an hour. Then it stopped. Then I changed the fuel filter. It would not restart.
I just cranked it will pulling the decompression lever for about 30 seconds. Waited a few seconds and tried to restart.
Still will not start. I will have to see about pulling the injector out, but getting the cover off is my current issue with getting deeper into it.
Sounds like some good advice. You have no service manual ? I have had extensive experience with marine diesels in boats I have owned. If it ran for a period of time after the filter change then highly unlikely to be air in fuel lines. Since you mentioned it has only a primitive filter I would look at dirt and or water in fuel system. You need to run the fuel in the engine through and probably remove and clean, maybe replace, *the injector injector. I would look carefully at the fuel tank for water or dirtY fuel. If the fuel is old it could also have algae growth if you have not used an algaecide. If fuel tank is metal you may easily get water via condensation soon followed by the algae. Heat and humidity in DR are ready made for algae growth. All diesels need absolutely clean well filtered fuel. Above all do not run any more fuel from the tank until you know it is spotless clean. A decent diesel truck mechanic should be able to clean lines, remove the injector, which should be rebuilt. You can clean the fuel yourself. Good luck and I hope the lights stay on in the meantime.
It did not run at all after it stopped running and I changed the simple in line fuel filter. The service manual is useless with respect to this issue.
I will need to get the cover off to get at the injector after looking at a manual a similar if not identical engine.
I did find this:
http://www.repairdynamics.com/186F_Diesel-_Yanmar_L-A-Manual-Complete.pdf
I will need to find out how to get the cover off since that is not entirely obvious even after removing more than 20 bolts that hold it. The injector is on top of the engine and the fuel tank appears to be attached to the cover. Not the most serviceable of designs.
From everything being said, it appears to be air in the high pressure line and/or possible dirty injector.
This is what the generator looks like. Mine does not have that small port with four screws in the top cover.
http://www.ebay.com/itm/Silent-Encl...ctric-Start-/152307402724?hash=item23763a87e4
The fuel pump is at the top of the engine, the injector is on the side. *You can see the injector through the door, you can't see the pump that well, and you may need to undo all those bolts to take the cover off.