New Guy needs some help.

Hi folks, first time on this site.  Was recommended to this place by 2 co-worker/friends.  They said there was a lot of knowledgeable people with experience here.  From what I've read so far they were correct.   A little bit about me, I'm 46, married to the same great woman for 27 years, spent 4 years in th Army, then 6 in the Air force, Thought about going into the Marrines at the age of 38, then wised up, just to old.  Been working here at Lucky Lumber for 15 years now as the Ops Manager/Computer guy/Salesman/Jack of all trades...  Anyhow I need a bit of help.  I recently purchased an AC Motor Grader on Craigslist and it has a few problems.  Good old working grader when I bought it, but seemed to be lacking power.  Changed all the fuel filters, oil & filter, ect. and no help.  Ok, needed to be done anyway, no telling when it was last done.  Then she would run for a bit and quit, like someone would shut off the fuel.  I put up with it for a couple days, then when I was trying to straighten up my driveway a bit, she quit and would not start again.  Checked the fuel, filters, lines, had fuel to the injector pump, but when I cracked a injector line fitting and cranked it over, no fuel.  So, the injector pump is out.  Pulled the little timing cover off the side and it was full of coffee ground looking stuff.  Talked to a local mechanic, told him what transpired and he said most likely the governor ring inside the injector pump disintegrated and plugged up the fuel return journal.  That's why I could wait a minute and restart it.  He said to figure on a rebuild of the pump at minimum.  HERE is where I got myself into trouble.  I pulled the pump off.   Didn't set the timing first... yeah, rookie move on my part.  Took the pump to be rebuilt at Baillie Injection Service at Nixa, MO   Should get it back next mon or tues.  In the mean time I need to find out how to set the timing on this machine so I can get it back together.  I hope one of you can help me out with this.  Thanks.