Today I had 17 tons of gravel delivered to add to my driveway. I was a little worried using the tractor to do it but figured what the ****, what else am I going to use.
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She goes, she goes. She blows, she blows. What the ****, right?
Well, the vibration and weirdness was obviously apparent at the beginning even after warming up to operating temp. It sounded odd so much so that my fiancee's father, who has been around heavy machinery before came over and asked me if it was supposed to sound like that. I hadn't mentioned my concern about it to him prior.
I thought it seemed like a miss or something. Like an injector needed bled or whatever. I am not new to things mechanical by any means, even diesels. The engine was acting like my 6.2L DD did in my M1008 truck before I replaced my injectors and rebuilt the DB2 with new seals. Either way, I just ignored it and went to moving the stone.
After I moved and spread the initial pile of gravel over the span of 45 minutes, I idled down and let it run. I always let my engines run to cool off before shutting down. I noticed that it sounded different than before I started. It actually sounded like it was running perfectly again. It wasn't vibrating or resonating like it was before. The grainy feeling of the steering and loader control also stopped. My airbox wasn't violently thrashing about like before (I swear, guys, the video I posted doesn't really illustrate how bad it was). Even my throttle lever only vibrated a half inch or so either way. Before it was buzzing a lot more.
It's really weird. I wonder if maybe it just needed worked a bit or if it needed to pass some air through the fuel system or something. I didn't run the first tank of fuel out (maybe 1/3 tank left based on what I could see) but I did fill it with road diesel the day I noticed the weirdness happening. It initially had a full tank of red off road diesel from the dealership when I got it.
I am still breaking the engine in, obviously. Maybe this chaos is part of that. -But, for it to go from running super smooth on day one, to running strangely, to running smooth again, seems pretty odd to me.
It certainly is a whole lot of fun to operate. I love it.
I appreciate the help and insight from each of you!