While reading through the military spec manuals I've encountered a few questions...If I'm reading it correctly they're calling for 15-40 wt oil...Which lead me to try and figure out the route of the oiling system...Does anyone know the routing ??? There's no actual oil passage way diagram showing the flow of lubrication but with the pics I've collected I think I have it figured out so correct me if I'm wrong...When I get to the point of needing to tear one down I'll get detailed pics but for general routing Here we go.... Oil in the pan goes up through the check valve into the oil pump...From the pump it flows to the crank... Here's a pic of the 084 crank it seems to have oiling journals on the mains and the rods...And a pic of the crank main bearing... it has full groove bearings which is a good thing{the full groove bearing keeps oil flowing at all times instead of only when the oil holes line up during rotation} and I'm assuming the cam would get it's lubrication from one{or more} of these bearings.... Now, here's the thing...If the crank has oiling holes for the rods and the rod bearings look like this.. would'nt that mean that the rod bearings are pressurized ??? I also see the piston/rod combo has what's called a "full floating" piston pin which means it rides on a coating of oil{instead of being pressed on the rod} and is held by a retainer ring in each end of the piston seen here... and that end would be lubricated by either A}an oiling hole from the rod itself or B} is splash lubed by the slinging oil...
I can't find any pics of the pushrods but I'm assuming the rods are hollow and the lifters are pumping oil through them into the heads and the heads have the external oil returns {rubber lines} back into the block.... Did I get this correct ???
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