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That plate tells me:
Now, someone please explain those other two non-std options....
Wow, that's more info than I thought anyone would have! Thanks for the detailed and interesting response!
Where specifically do I look? On the front I just see GM 6.2L D
Look near where the transmission bolts to the rear of the engine block. Above the trans. Remove the doghouse in the cab to see.
Well, I can't. I am a generator guy. The reason I know about the other stuff is because a Direct Support Shop Officer would get his head handed to him, if he didn't!Now, someone please explain those other two non-std options....
Those numbers don't make any sense to me because:
1) In the real world there are only two oversize pistons available for these engines: +0.50mm and +0.75mm. (equivalent to 0.02" and 0.03", respectively). And AFAIK the military only ever used +0.50. Any block beyond that size went straight to the junk pile.
2) In order to achieve correct clearances, even a std size crankshaft normally takes std size bearings in combination with -0.013mm (= 0.0005" US) and -0.026mm (= 0.001" US). That goes for main bearings as well as rods.
But I have also found HMMWV engines with cranks ground to the next real undersize, which is -0.25mm (= 0.01" US). Besides that in the civilian world, bearings for these cranks are available in -0.50mm (= 0.02" US) and even -0.75mm (= 0.03" US).
It says 14022660 on the drivers side and a244 on the passengers side.
January 24, 1994, i think for gm block.
What does a rebuild usually entail?
I am not sure about military standards, in the civvy world a complete rebuild usually includes, new pistons, rings, all bearings including cam bearings, seals, gaskets, freeze plugs, the heads are given a valve job which may or may not include new valves, springs, guides and keepers, the cam is inspected or simply replaced. the heads and block mating surfaces are checked that they are true, the crank rod and main journals are inspected and re-ground as needed, the line bore of the mains and cam journals are checked, the heads crank and block are checked for cracks, the cylinder bores are honed or bored and honed, on a diesel the injection pump and injectors are replaced with new or rebuilt components, the oil and water pumps are replaced, the timing chains/belts are replaced and the timing gears/pulleys are inspected and or replaced the rods are inspected and or resized and upper bushings are replaced if the rods have them (some rods are press fit and do not have upper bushings) sometimes the rod, main and head screws are replaced (replacing the head screws is mandatory on the 6.2 and 6.5L as they are torque to yield, not sure about the rod and main screws)
