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NOTE: You state "piston bearings" ... which don't exist. I'm assuming you actually mean either the rod or main bearings which the crankshaft rides on, so that's what I'm going with. Technically I suppose you could ... but why? It doesn't make sense for many reasons: When you get new bearings, they come as a set for all of the journals. You've got ...


The fundamental frequency of exhaust is simply the number of firing cycles per second. Harmonics are integer multiples of the fundamental frequency. There is no difference between how the fundamental frequency is calculated no matter how many cylinders the engine has. The harmonic frequencies resulting are completely determined by the acoustic properties ...


Every mechanic knows the two factors that contribute the most to wear is HEAT and FRICTION. A pre-oiler will double or triple engine life.....and they are cheaper than repairs down the road.

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