30
Mar
Some props will have a circular tab instead of a cotter pin. You definitely wouldnt go to a 14 pitch.
Clean any debris or fishing line near the shaft.
How to change a boat prop. 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 prop-puller a wrench designed just for prop nuts. Remove the propeller nut. Remove the splined insert.
Remove the plastic insert. Clean any debris or fishing line near the shaft. Put a little grease around the base of the shaft.
Now reverse the order to put the new propeller back on. Its Just That Easy. Change the propeller in your boat in under 3 minutes.
Watch the video to see how. Adjust the pitch so that ultimate full-throttle revolution per minute matches the way you use your boat. Adjusting the Boat Propeller Diameter.
Look for the manufacturers recommendation for appropriate diameter for your boats engine. Consider the manual because the design of the boat may affect the preference of propeller just like the engines horsepower. Straighten and remove the cotter pin using a pair of pliers some props will have a circular tab instead of a cotter pin.
Straighten the cotter pin. Remove the prop nut with a ratchet or a prop-puller a wrench designed just for prop. How to change boat prop manual pdf how to change boat prop manual Files for free and learn more about how to change boat prop manual.
These Files contain exercises and tutorials to improve your practical skills at all levels. To change a boat prop the boater requires the protection of leather gloves. Hand tools including a pair of pliers a flathead screwdriver marine grease a torch wrench and a ratchet are required to change a boat prop.
Prop removal isnt only necessary for putting on a new one its should also be part of your regular preventative maintenance schedule. Debris like fishing line often gets wrapped up on the prop shaft and can cause serious and costly damage. Elite Series pro Terry Scroggins shows us his simple 3-step prop removal process using a few simple.
Most propellers can be changed from straight pitch to progressive pitch. For better take off - lower the pitch over the leading edge. For better top end - increase the pitch over the trailing edge.
To figure out which pitch will be the most effective on a given boat. Increasing the pitch by an inch or two decreases the RPM accordingly and puts you back in the RPM range sweet spot. If the motors RPM is below the manufacturers range the boat is over-propped and decreasing the propeller pitch will increase the RPM to where it should be.
Set the trim angle so the boat has optimum speed on top of the water. To test the prop run the boat at WOT and observe the maximum engine RPM on a tachometer. If the RPM is below the recommended operating range switch to a propeller with lower pitched blades.
If the RPM is higher switch to a propeller with higher pitched blades. Need the year of the motor. You should confirm the prop size before changingNumbers usually appear at the base of the blades or under the prop nut.
Your present prop is darn close to perfect. 3355 mph is very good. You definitely wouldnt go to a 14 pitch.
It would lower the wot rpm too much and your hole shot would disappear. If the boat is put to a different use for instance if a fishing boat changes to a ski boat it is important to change the prop to get the best results from the boat. Experts believe that licensed technicians do the best job of replacing props.
They do not advice boaters to replace props. How Propeller Pitch Affects Your Boat Performance. The lower the prop pitch the better your hole-shot or ability to get up to speed very quickly from a standstill.
However this improved acceleration comes at a price. The lower pitch will cause your engine to reach maximum rpm at slower speeds. A prop thats well-matched to a boat will be less prone to cavitation or blade deformation and damage.
Removing the prop at least once a year gives you the opportunity to inspect and repair any propeller damage and remove any debris that could damage the prop shaft oil seal.