Prop for 2018 R23 with a Merc 150
- Thread starter andremike
- Start date
25" shaft is what Bennington shows for a SPS Tube configuration per my previous posts. So you have the right shaft for the toon option.
I just don't know what to do.. between the poor speed, but maybe it's normal for this weight.. and loud engine. I am at a loss.
I'd like to change the oil and plugs.. maybe put on my Vengeance 14.5" 15p prop..
Maybe change the oil and plugs...
Would a 200hp merc four stroke be better? I saw someone selling a 200 PRO XS. Will a 200 hp get me alot more?
I'd like to change the oil and plugs.. maybe put on my Vengeance 14.5" 15p prop..
Maybe change the oil and plugs...
Would a 200hp merc four stroke be better? I saw someone selling a 200 PRO XS. Will a 200 hp get me alot more?
you can go through these motor performance bulletins and look at mercury 150's with various pontoons (no Benningtons) or the Yamaha 150's spec bulletins (some Bennington's ) with a 150 and make your decisions
Performance Tests | Mercury Boat House Bulletin
performancedata.mercurymarine.com
Yamaha 150hp bulletins
Performance Bulletins - Yamaha Outboards
Yamaha Outboard Performance Bulletins provide in-depth performance information on hundreds of boat and engine combinations. Browse Performance Bulletins here.
yamahaoutboards.com
Yamaha 150hp on a 24 MSB with a 150hp with SPS tubes
F150XC on Bennington 24MSB Performance - Yamaha Outboards
Find detailed specs and performance information for the Yamaha F150XC outboard motor paired with a Bennington 24MSB boat.
yamahaoutboards.com
I'd still look at water in the tubes with such a large disparity on speed...
BigKahuna
Well-Known Member
I can hear some water in the center toon. The outer seem fine. How is the center toon constructed because I don't see any water when I open the floor dooryou can go through these motor performance bulletins and look at mercury 150's with various pontoons (no Benningtons) or the Yamaha 150's spec bulletins (some Bennington's ) with a 150 and make your decisions
Performance Tests | Mercury Boat House Bulletin
Yamaha 150hp bulletins
Performance Bulletins - Yamaha Outboards
Yamaha Outboard Performance Bulletins provide in-depth performance information on hundreds of boat and engine combinations. Browse Performance Bulletins here.
Yamaha 150hp on a 24 MSB with a 150hp with SPS tubes
F150XC on Bennington 24MSB Performance - Yamaha Outboards
Find detailed specs and performance information for the Yamaha F150XC outboard motor paired with a Bennington 24MSB boat.
I'd still look at water in the tubes with such a large disparity on speed...
What model Bennington? Do. The models vary in weight alot?
Vikingstaff
Moderator
Models vary significantly in weight. Water in a pontoon is a major hit on performance. That alone could explain some things. I would get that checked out. They can drill, drain and plug many types of issues. For major problems even entire pontoons can be replaced. If there is no signs of collision, warranty covers those sorts of problems and repairs.
BigKahuna
Well-Known Member
When I had water in my starboard toon in my old boat I took it to a marine TIG welder. He drilled a hole in the bottom of the toon and all the water took several minutes to drain out! He then installed a threaded bung hole in case I needed to use it in the future.....
i have flicked it on and off... not sure how long it needs to be on for and where its pumping water. I assume its only for the center storage section. My water sounds like its in the front portion of the center toon. Can you see the bilge pump? whats under the circular plate on the rear deck?
I assume since it was a M model, thats a probably a 24 / 25 model year and the test was done in Sept 2024.
For sure every model is different with weights and even inside a specific model, weights vary greatly with options. I was always surprised on how much a twin elip set up is about the same weight as a ESP hull triple tube boat in its base configuration.
When I had water in my tubes, each chamber had a rubber plug up on top of the toon. They had to take the side skirting off on the inside of the toons to get to them. They put a light pressure of air in each of those plugs and then used soapy water around all the welds to see where it "bubbled" and then they found many spots in the welds.
Mine was under warranty too, but being 3+ hours away from the dealer and I would have lost the boat for the entire summer, I just had a local fabrication shop re-do the welds and install drain plugs in the pontoons. Never had another problem after that.
You can also do a "hot water/ heat test" on the toons. Get a bucket of hot water, or use a heat gun / hair dryer to heat up the toons 1 section at a time. Aluminum has very good heat dissipation properties. Notice how long it takes to heat up and return to normal temps.
If no water is present, it will go back to normal temps quickly. If water is present, it will take much longer to heat up and will stay cooler.
Vikingstaff
Moderator
Yes, the center pontoon has three chambers. I gave a lengthy answer to you in another post on this matter. I’d get it into the dealership if you believe you have water in the forward chamber of your center pontoon. It is still under warranty. They can test it. There are different remedies under warranty that can get you taken care of.