Mag 18 valve question.
This is just a general question, I don't currently have an engine with this issue. Since the mag 18 doesn't have adjustable lifters, how do you go about adjusting the valves? I understand that is generally done by a machine shop and they can shorten the stem until it has the proper clearance but what do you do when there's already to much clearance? Install new valves? Just about every mag I've dealt with had noisy valves but ran ok, just looking for the best course of action for future reference.
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