This is a how-to guide on replacing the propeller on a 9.9hp, 15hp or 20hp Mercury FourStroke Outboards. In this video I go over the difference between Aluminum and Stainless props along with showing how to remove and replace your propeller.
UPDATE: After taking the boat out for a test with the 10p Stainless prop, it worked great! We picked up 200-300 rpm over the aluminum and gained 2-4 mph. The RPMs sit around 6100-6200 right now so there is still room for adjustments.
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Very nice video. Thanks. This is a general commentary – not specifically about you. I see it all the time – when YouTubers run into an awkward or difficult step – like your difficulty removing the cotter pin – they often edit out the part where they are struggling. I guess this is to make them look more competent or expert. But those difficult bits are the exact parts we need to see – how you managed to overcome the difficulty. You did as I'm suggesting when showing the retrieval of the broken pin – so I know you get it. So, I guess I'm just ranting at DIY YouTubers in general, not you in particular. Show all your mistakes!
What size is the prop nut?
What is the propeller part number?
What was the outcome? Rpm and speed mph changes
Do you remember your top speed going from aluminum to stainless? I have the same motor, but it’s on a 13ft whaler .
Im gonna change 4 blade from Pro Kicker to this one. Thanks no clips is useless just use your brain and community sense
I have the same motor with the stock prop on a Lund 1600 fury,I’m running at the top of my rpm sometimes over ,so would you recommend a 10 stainless or 9,I don’t wanna loose speed but I was under the impression that the higher the pitch the more rpm you loose
Tracker grizzly? I have the same boat and motor if so. So this is very helpful for propping my boat.
Any update on the performance of the new prop? Did the change make a noticeable difference? Thanks for the video!
That brass washer was the thrust washer
Thanks for the video! Where did you get the anti-seize and prop from?
Is this process the same with carbureted 20hp Mercury’s? (2017 model)