Other plate-type pullers, like this one produced by Frank & Jimmies Propellers (fjprop.com), work on the same principal of jackscrews spreading two plates. While the rods thread into the propeller like on a PropSmith, both plates fit behind the shaft. This allows two sizes of pullers to fit most boats, including shafts with metric threads. It also works without shaft threads protruding behind the propeller. The downside? It won’t press props back on, and there is nothing to keep the prop from sliding off the shaft as it is pulled. (When using most pullers, one nut is left on the shaft half an inch from the propeller to stop the prop once it’s released from the shaft taper.)
When it comes to testing engines, Capt. Bill Pike has walked the walk. From pods to Liquefied-Nitrogen Gas powered boats, you name it he's reviewed it. Now see what he has to say about his first electric outboard test.
Watch the video here. ▶