It has around 135k miles.
The reason I adjusted the timing more advanced is because my father-in-law and I had a guy on the phone walking us through setting the time on the IP and we got it close enough for it to run, but we didn't do the drip method (first time diesel owner here and hadn't read up on it).

Since the altitude change from there to here is around 6000 feet we thought the timing was the problem on the car not having power when I got it home.
No power being, I could barely make it up my driveway and it wouldn't rev up with no load.
So I advanced the timing to see if would help and it did, until the fuel pump appeared to go out.

It does have an even sound to it like the cylinders have compression, doesn't spin fast like a gas engine does when the timing jumps.

what is the upper end of RPM's on these engines?
I thought it was around 4500.
Driving freeway for 12 hours or so at 3000rpm, didn't think pushing 3800 would be a problem.



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