Do they make a adaptor to put a load on the prop of a outboard motor with a garden hose?

-i have a 35 hp Johnson and i saw some years ago at a boat dealer that was runing a outboard motor and there was somthing on the lower unit that put a load on the prop to see how it preformed at high speeds, can i get one of these with out haveing to sell my house?The CHEAPEST way to do what you want to do is, get an empty 55 gallon drum and boat a wooden plate on the top to give the clamps something to bolt onto..mount the mount the motor to that board.. fill the 55 gallon drum with water and start up the motor.... you can safely run the outboard in that setup and it won't cost you a Fortune for a dynamometer for a one time use.
If all you want to do is confirm the engine is running properly throughout it's RPM range then it's just as easy to use a big trashcan or 55 gallon drum full of water. Something that attached to the propshaft and imitated an actual load seems like it'd be pretty complex, not to mention rather dangerous.
they make actual dynos for boats. remove the prop and put the correct adapter on and put it in place of the prop.

definetly isnt a cheap tool.



but, just put it in the water. if it runs like crap, you will know it.