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April 12, 2015 at 5:23 pm
#13801
Well pulled her all back apart and determined the rod/piston assemblies are wrong? On the down stroke, the piston skirt hits the casting before it can continue on its up stroke.
The powerhead I pulled the pistons and rods from was a ’58 powerhead, or so the welch plug says? Perhaps it was a ”57 powerhead with a ’58 welch plug installed? I don’t know, but these pistons/rods definitely will NOT work in this powerhead. Are the ’58 rods longer than the ’57s, or perhaps the ’58 pistons are shorter in length? if so, that would explain why the piston hits the casting before it can continue on and around.
Strange.