The oil pressure is decent. The recommendation is that at 2000 rpm it should be 15 psi or something. I don't have a tach, but at low idle (idle is around 625 or so if memory serves me right) it is 18 hot, and at half throttle hot it is in the 30s and 40s. At start-up it is at about 50. Also, it doesn't sound to me like all of them are ticking, just one or two. when it is idling in drive, it is hummmm TICK hum tick hummmm (repeat) When you are accelerating on the road, it is just TICK,TICK,TICK,TICK,TICK,TICK,TICK (repeat)
I am not sure it is a lifter making noise, the reason I posted was to see what people would come up with that would explain the symptoms. It does sound like it comes from around the valve cover/ head/ manifold area, but it is hard to tell. The noise isn't a knocking noise, it is similar to a person tap dancing under the hood. I'll have to check the exhaust gaskets and manifolds, but, darn , it seems that the engine is too quiet for that. You can barely even hear the engine noise over the tapping unless you really step on it. Thanks for the input.
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Today's Featured Article - Tractor Profile: Farmall M - by Staff. H so that mountable implements were interchaneable. The Farmall M was most popular with large-acreage row-crop farmers. It was powered by either a high-compression gas engine or a distillate version with lower compression. Options included the Lift-All hydraulic system, a belt pulley, PTO, rubber tires, starter, lights and a swinging drawbar. It could be ordered in the high-crop, wide-front or tricycle configurations. The high-crop version was called a Model MV.
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