Whidbey Island Cruiser
New member
I just installed a new/used 305 V8, sporting a brand new crankshaft-driven Johnson f5B-9 raw water pump.
My Bayliner dealer test-started the engine and thought the pump was excessively wobbling. He thought it had a wrong (or modified) supporting arm bracket on it, so he changed that out to a "correct" bracket, which he said fixed most of the wobble. "Way better than it was."
I floated the boat and fired it up.
Because I 'm obsessive, I called him about the remaining wobble I saw. He told me these pumps, and mounting pulleys, are never really perfect, and there's always some bit of wobble.
I'd guess it's gyrating like it's 1/8" off of "perfect center" axis. ( I took a video, but do you think I can load it here? no way.)
Your thoughts... do they all vibrate to some degree?
My Bayliner dealer test-started the engine and thought the pump was excessively wobbling. He thought it had a wrong (or modified) supporting arm bracket on it, so he changed that out to a "correct" bracket, which he said fixed most of the wobble. "Way better than it was."
I floated the boat and fired it up.
Because I 'm obsessive, I called him about the remaining wobble I saw. He told me these pumps, and mounting pulleys, are never really perfect, and there's always some bit of wobble.
I'd guess it's gyrating like it's 1/8" off of "perfect center" axis. ( I took a video, but do you think I can load it here? no way.)
Your thoughts... do they all vibrate to some degree?