steelsoldiers
1/2 ton status
Hey guys,
I finally got to the root of my engine troubles in my M1009. Just a brief recap for those who didn't see my earlier posts.
I was driving my M1009 a few months ago and when I pulled up next to my deuce in the driveway, it just died all of a sudden. I tried to restart, but no good. I notice that my electric fuel pump wasn't running so my first thought was that it conked out and the injection pump lost its prime. I replaced the pump and bled the air up to the injection pump. I cracked the injector lines and cranked the engine over. I got a little diesel at a couple of the injectors, but never at the rest of them. While cranking to bleed the air the engine started making funny popping noises up through the intake. Weird huh? Well I tore the front of the engine down thinking there was something wrong with the timing. I discovered that the cam bolt had vibrated out allowing the pump driving gear to fall away from the pump gear. Dang. Well, I put it all back together and it started real quick, but it was making a machine gun racket sound out of the intake. I shut it down real fast. Today, I pulled the valve covers off looking for bent valves or something. The left side was normal, but when I pulled the right cover off, I saw some serious carnage. Check this out:
I am thinking that the engine must have jumped time because the timing gear lost index on the cam shaft when the bolt came out. The pistons met the valves and busted the rocker assembly into pieces. It's strange that it only affected the right side. I would have expected bent valves or push rods, but damn, not a busted rocker shaft. I'm guessing there is also some serious internal problems on that side with the valves and maybe pistons so I will end up pulling the engine instead of just bolting up a couple of rocker assemblies. I figure the driver's side has problems too. Well, now I have been through everything with this Blazer, maybe.../forums/images/graemlins/crazy.gif
Chris
I finally got to the root of my engine troubles in my M1009. Just a brief recap for those who didn't see my earlier posts.
I was driving my M1009 a few months ago and when I pulled up next to my deuce in the driveway, it just died all of a sudden. I tried to restart, but no good. I notice that my electric fuel pump wasn't running so my first thought was that it conked out and the injection pump lost its prime. I replaced the pump and bled the air up to the injection pump. I cracked the injector lines and cranked the engine over. I got a little diesel at a couple of the injectors, but never at the rest of them. While cranking to bleed the air the engine started making funny popping noises up through the intake. Weird huh? Well I tore the front of the engine down thinking there was something wrong with the timing. I discovered that the cam bolt had vibrated out allowing the pump driving gear to fall away from the pump gear. Dang. Well, I put it all back together and it started real quick, but it was making a machine gun racket sound out of the intake. I shut it down real fast. Today, I pulled the valve covers off looking for bent valves or something. The left side was normal, but when I pulled the right cover off, I saw some serious carnage. Check this out:
I am thinking that the engine must have jumped time because the timing gear lost index on the cam shaft when the bolt came out. The pistons met the valves and busted the rocker assembly into pieces. It's strange that it only affected the right side. I would have expected bent valves or push rods, but damn, not a busted rocker shaft. I'm guessing there is also some serious internal problems on that side with the valves and maybe pistons so I will end up pulling the engine instead of just bolting up a couple of rocker assemblies. I figure the driver's side has problems too. Well, now I have been through everything with this Blazer, maybe.../forums/images/graemlins/crazy.gif
Chris
, this thread was way old!
