I have a 1983 Evinrude Model E140TRLCTE with a 20 inch shaft. The motor was completely rebuilt when I bought it and it runs great. The only issue I have now is that with a 3 bladed prop installed it cavitates BAD when starting out or turning. My prop guy told me the only fix was to put a 4 bladed prop on it. I did that and that fixed the cavitation problem (mostly), but now the motor RPM's take a while to spool up when giving it the gas from a stop, which of course affects how long it takes to get the boat on plane...IE: when trying to pull a skier up I end up dragging the skier through the water instead of pulling them up quickly.
I think the real problem is the shaft length. The cavitation plate is right at the bottom of the boat, but since the boat is all aluminum it has a shallow draft (about a foot). All of this add's up to my question....can I convert this motor to a long shaft, and if so, is there a kit available somewhere to do the conversion? The transom on my boat is about 22 inches.
I think the real problem is the shaft length. The cavitation plate is right at the bottom of the boat, but since the boat is all aluminum it has a shallow draft (about a foot). All of this add's up to my question....can I convert this motor to a long shaft, and if so, is there a kit available somewhere to do the conversion? The transom on my boat is about 22 inches.
