How to change prop on johnson outboard

In boating Johnson propellers are considered to be among the best. Mark the front of the propeller and the propeller hub directly across from each other with a permanent marker.

Grap a pencil and look at your prop.

How to change prop on johnson outboard. Coat the outer surface of the new propeller shaft seal with a light dusting of spray penetrating lubricant. Use a shouldered bearing driver that only contacts the seal around the exposed set of the bearings lips to install the seal into the bearing carrier so that the the set of lips with the larger outer diameter faces inward toward the rear of the carrier. How To Change Outboard Prop Shaft Seals.

Prop shaft seals are changed by pulling the bearing carrier pushing the old seals out. Then pressing in the new seals reinstalling the carrier. You can also pull the seals out without pulling the carrier to change them.

SElEct thE riGht ProPEllEr For Your BoAt And outBoArd 7 STEP ONE. PROPELLER STYLE 7 STEP TWO. PROPELLER SIZE 7 STEP THREE.

ENGINE MOUNTING HEIGHT 7 THINGS TO REMEMBER 7 ProPEllEr huB sYstEMs 8 HARDWARE CHART 8 ProPEllEr FAMilY dEscriPtions 9 REBEL 9 RAKER 9 RENEGADE BASS 9 CYCLONE 9 VIPER 9 ROGUE 9 SSP 9 HYDRUS 9 EVINRUDEJOHNSON ALUMINUM PROPS 9. Block the prop so it doesnt spin as you apply pressure to the prop nut. Straighten and remove the cotter pin using a pair of pliers.

Some props will have a circular tab instead of a cotter pin. Remove the prop nut with a ratchet or a. The reverse is also true.

Move to a lower pitch and your full-throttle RPM will increase. Most propellers are sized by two-inch intervals example 17 19 21 etc and a 2 pitch change will result in an average 300 to 400 full-throttle RPM change. Mark the front of the propeller and the propeller hub directly across from each other with a permanent marker.

Run the propeller for about two minutes and then shut it off. Inspect the two marks to see if they are still lined up across from each other. A change in the prop pitch will increase or decrease the engine RPMs and can be used to bring them into the recommended range.

A 2 pitch increase for example from 21 to 23 will result in approximately a 300-400 RPM decrease and vice versa. The correct prop allows the engines RPM to run within the top end of the manufacturers recommendation. Using pressure that is built up between the blades which rotate and use water as the accelerant propellers convert motion into thrust.

In boating Johnson propellers are considered to be among the best. Wholesale Marine offers a wide selection of propellers for these outboards to replace or upgrade the propulsion on any Johnson engine-powered boat. The below propeller brands will fit on your selected Johnson outboard marine engine.

However to ensure proper loading of your engine please choose the propeller size that most correctly matches your existing propeller. Please use our Propeller Guide to narrow your Johnson propeller options to your specific engine. Put the outboard in the Trimmed In position.

This is the best position to start off with. Some outboards may specify ideal angles in the owners manual. This can be done on manual outboards by loosening the trim lever and pushing the top of the engine out away from the boat.

The result is the propeller moving closer to the boat. Start by removing the cotter pin and then the propeller nut. Place the steering wheel puller over the propeller shaft then lock the arms of the steering wheel puller and depress the bearing carrier off the gear case.

Remove the damaged seal and pull out the old O-ring. Place the new seal into the bearing carrier and tap it into place with a mallet. Remove seal from impeller housing base in step 8.

Place on a vice and use an old screw driver to drive it out of the plate by hitting it around the edges. Rotate the screwdriver around the circumference of the seal while you are striking it. Replace the propeller and push it onto the driveshaft lining the pin up with the recess that it will fit into.

Turn the propeller on the driveshaft while pushing it onto the shear pin. The turning motion will come to an abrupt halt when it is seated correctly. A change in the prop pitch will increase or decrease the engine RPMs and can be used to bring them into the recommended range.

A 2 pitch increase for example from 21 to 23 will result in approximately a 300-400 RPM decrease and vice versa. The correct prop allows the engines RPM to run within the top end of the manufacturers recommendation. The main consideration is the requirement to remount your outboard 5 to 6 inches higher to facilitate the shallow running outboard jet drive.

This can be done with an outboard jack plate or transom bracket. This method will allow you to change the outboard jet back to propeller drive as required for conditions. Grap a pencil and look at your prop.

Write down the number on your prop. There IS a number SOMEWHERE on the prop. Look on the hub under the nut but somewhere there IS a number.

Match it to this list and click on it to see the exact replacement. A change in the prop pitch will increase or decrease the engine RPMs and can be used to bring them into the recommended range. A 2 pitch increase for example from 21 to 23 will result in approximately a 300-400 RPM decrease and vice versa.

The correct prop allows the engines RPM to run within the top end of the manufacturers recommendation.