Quote:
Originally Posted by NeighborsComplaint
The only ways to bend a pushrod are piston to valve contact (engine would be sick), tight guide plate notches or guide plate misalignment (pushrods would be scored), or collapsed lifter from over-adjusting. It's not a mystery.
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A valve guide not properly sized would also do it. Guide to stem clearance too tight, valve sticks, pushrod bends.