yamaha415
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- Grass Valley/CA
Hey guy scratching my head here. Finally got the replacement fuel return line for my MEP-1070 I pick up at govplanet as a non runner. Anyways went to start it for the first time for me and it was sputtering and producing lots of smoke. Noticed that most of the injector lines where loose so I tightened them and retried starting. It come much closer to starting after this, but failed to do so and continuing to produce lots of smoke. I also noticed that on the second attempt of starting the intake hose was starting to crush. Well for better or worse I took the intake hose off right as in enters the engine and tried again. This time it fired, with higher RPM's than I was expecting (i attributed it at the time to first start after many years and clearing things out). Then the RPM's kept rising, smoke billowing and it became clear the engine was running away. The emergency stop was pressed to no effect, so thankfully I had the intake hose off the engine so I covered that with a cardboard box and got the engine to shut off.
It threw the Fault code 234 High Engine Crankshaft Speed/Position-Most Severe. I'm at a loss for why it ran away with the turbo being taken out of play with me having the intake disconnected.
Hoping you guys have some ideas. I was able to get it shut down pretty quick so I'm not thinking blew the engine. However, it got me thinking that its likely the last time it was run by the military it could have likely ran away on them (the air cleaner lid and filter was missing and inside the engine compartment has some white and redish powder which might be fire extinguisher residue). If thats the case who knows how long it was until they were able to get it shut down. Not sure how far I should take this one so I'm hoping you guys have some clever ideas as to why it might be running away.
Thanks
It threw the Fault code 234 High Engine Crankshaft Speed/Position-Most Severe. I'm at a loss for why it ran away with the turbo being taken out of play with me having the intake disconnected.
Hoping you guys have some ideas. I was able to get it shut down pretty quick so I'm not thinking blew the engine. However, it got me thinking that its likely the last time it was run by the military it could have likely ran away on them (the air cleaner lid and filter was missing and inside the engine compartment has some white and redish powder which might be fire extinguisher residue). If thats the case who knows how long it was until they were able to get it shut down. Not sure how far I should take this one so I'm hoping you guys have some clever ideas as to why it might be running away.
Thanks