Backup Props

Post Reply
tedconverse
Lieutenant
Lieutenant
Posts: 22
Joined: Sun Nov 15, 2020 4:33 pm
Location: Peoria
Contact:

Backup Props

Post by tedconverse »

Hey all, I have CS23 with 6.2 L MPI ECT-350 B3 DTS (Bravo 3). Wondering if it's smart to have backup props on board? Are the props separate on a B3, or do you replace the whole unit (2 props).
User avatar
jhnmdahl
Vice Admiral
Vice Admiral
Posts: 2429
Joined: Tue Jan 06, 2015 5:11 pm
Location: Twin Cities, MN
Has thanked: 3 times
Been thanked: 7 times
Contact:

Re: Backup Props

Post by jhnmdahl »

Separate props. It depends on what kind of damage your props might take, and how easy/hard it is to replace in the water (e.g. with a prop nut wrench). If you simply ding up a propeller on a rock or something, it's easy enough to fix when you're back on the trailer. If you "spin a hub," i.e. the resilient rubber part that holds the hub to the propeller goes bad, you may be stuck limping home at a few miles per hour unless you have spare props handy.
Administrator of the www.cobaltchat.com Cobalt boats community forum
2015 210 (Volvo Penta 5.7L V8-225)
User avatar
billk2632
Captain
Captain
Posts: 426
Joined: Wed Sep 05, 2018 8:40 am
Location: Lake Norman, NC
Been thanked: 1 time
Contact:

Re: Backup Props

Post by billk2632 »

Separate props that require a special tool to remove. It would be hard to do in the water (not impossible) and they are big and heavy, I would not want to carry them around for the slight chance you might have to change them on the water. Not a bad idea to have a spare prop set, just would not carry them around on a small boat. You have to hit something big and hard to damage a BIII propset to the point you can't limp home on it. At that point you probably have damaged something else also. I personally don't have a spare prop set for my VP - they are expensive, plus my marina is a Volvo dealer that always has those in stock.
______________________________
2014 Cobalt R5 - Current
1999 SeaRay 185 Bowrider -Previous
2000 SeaRay 290 SunDancer - Previous
1979 Correct Craft Ski-Tique - Previous
1948 Chris Craft Custom Runabout - Oh man to have that one back!
User avatar
bruceb58
Vice Admiral
Vice Admiral
Posts: 1258
Joined: Tue Nov 24, 2020 11:10 pm
Location: Lake Tahoe
Has thanked: 1 time
Contact:

Re: Backup Props

Post by bruceb58 »

My boat came with 20" pitch Solas props. They are now my spares as I now run 21" props. I think it's a very good idea to have spare props. I keep mine in my garage because my boat is on my dock in the back yard.
2017 R5 350HP Mercruiser Bravo III
Northridge, CA
Big Bear Lake, CA
South Lake Tahoe, CA
tedconverse
Lieutenant
Lieutenant
Posts: 22
Joined: Sun Nov 15, 2020 4:33 pm
Location: Peoria
Contact:

Re: Backup Props

Post by tedconverse »

I changed a single prop Alpha 1s on the water before. Is the procedure more difficult with the 2 prop B3?
User avatar
billk2632
Captain
Captain
Posts: 426
Joined: Wed Sep 05, 2018 8:40 am
Location: Lake Norman, NC
Been thanked: 1 time
Contact:

Re: Backup Props

Post by billk2632 »

tedconverse wrote: Thu Jul 25, 2024 10:55 am I changed a single prop Alpha 1s on the water before. Is the procedure more difficult with the 2 prop B3?
More difficult in that there are two props, they are much heavier and more that one tool involved - the inner prop has a different type of nut. Can it be done, sure, would I want to no. I've changed my Alpha props in the water before also and they are not bad - also smaller and easier to store on the boat. I guess for me being on an inland lake and never THAT far from home I'm not going to carry two big props around on the off chance I might need them. Never in 30+ years of boating have I damaged a prop to the point I could not get home with it and if I did, then it's a BoatUS call. Now, if I cruised in a different area, great lakes, the coast I might feel differently. Where you boat there might be reasons for carrying them and if you feel you should, then I would - it's just not something I would do for my boating situation.
______________________________
2014 Cobalt R5 - Current
1999 SeaRay 185 Bowrider -Previous
2000 SeaRay 290 SunDancer - Previous
1979 Correct Craft Ski-Tique - Previous
1948 Chris Craft Custom Runabout - Oh man to have that one back!
MnLakeBum
Rear Admiral
Rear Admiral
Posts: 835
Joined: Fri Jun 22, 2018 8:21 am
Location: Minnesota
Has thanked: 1 time
Been thanked: 2 times
Contact:

Re: Backup Props

Post by MnLakeBum »

As mentioned already, where you boat is a big factor. I don’t have extra props for our MN lake boating in our R5 Surf but it’s not very likely I would sustain anything but minor damage on a prop. If I did it’s easy to get a tow from a neighbor or other boater to one of the marinas on the lake.

For our 24’ Boston Whaler(300 V8 Verado) in SW Florida, I have an extra prop with hub installed just in case. I don’t want to be 10+ miles offshore and run into a fishing net or other debris and not have an extra prop onboard. I changed it last year from the swim platform without getting in the water in just a few minutes. I also have a Garmin InReach onboard and all the other safety equipment.
2018 R5 Surf 380 VP
2016 Marker One 28’ with 350 Verado
2019 Boston Whaler 230 Vantage 300 Verado
tedconverse
Lieutenant
Lieutenant
Posts: 22
Joined: Sun Nov 15, 2020 4:33 pm
Location: Peoria
Contact:

Re: Backup Props

Post by tedconverse »

Ok. Thanks for the responses. I boat inland lakes, so I agree with the responses for not lugging around an extra Bravo3 prop. Thank up all!
Post Reply

Who is online

Users browsing this forum: No registered users and 48 guests