Reply to thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="PSG-1" data-source="post: 309081" data-attributes="member: 6937">After some thought on this.....In theory, I do believe you could get both pumps to turn in the same direction and run them off a single engine.HOWEVER, one variable we have not figured in is a nasty little thing called "deflection" With the engine in the center, connected to the pumps on either side, via chain drive, the torque of the engine will constantly be 'pulling' on those driveshafts. And since it's not on-center, that will cause deflection of the pump shaft, and will cause premature wear of the bearings and/or shaft.PWC's and other jet drives typically use a spartan jaw coupler, and the engine PTO shaft is very closely aligned with the pump shaft. A mis-alignment or deflection of more than .020" WILL in fact cause premature wear of the bearings, I've seen that happen with my own set-up, before I got it right.So, taking into account a max allowable deflection of only .020"....I'm gonna say the chain drive may not be feasible.</blockquote>