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    Trilux 33 on Bravo 3?

    I have a B3 that I have been having corrosion problems with when in a slip (freshwater) last year. I think I figured out my problem. I forgot to hook the ground cable back to the inner transom plate. I am planning to install new bonding cables and paint the outdrive with Trilux 33 that I...
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    175 Opti Cuts out, low fuel/air pressures

    I have a 2006 opti 175 that I am trying trying to figure out. It has no problem starting or idling, although it does have a random miss/rough idle at times that you can feel. The boat had been sitting a long time when I got it and the electric pumps were not working. I replaced all 3 of the...
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    Optimax primer bulb location/orientation

    Sorry for the long post, but trying to be thorough with information. I have a 06 175 opti that has been giving me problems. Long story short, the boat has sat for ~10 years without being ran (though it was winterized and fuel tank drained) and only had 49 hours on it. When I got it neither of...
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    Visual identification of a bad coupler?

    I have an alpha and a bravo coupler laying around and I am trying to decide what to do with them. Both are supposedly good, but I have never used them. The alpha style coupler came on a boat I bought with a 7.4l/bravo 3. The engine was older than the boat and I believe it was around an 88-90...
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    2006 175 Optimax been sitting 8+ years

    I have a 2006 175 Optimax that will not start on its own. The boat/engine has been sitting since about 2013. I first hooked up an external gas tank and primed the bulb before trying to start. It would not start, so we sprayed a little starting fluid into the throttle body and it fired up and...
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    Merc 7.4l Oil pressure switches

    I am in the process of replacing a mark IV 7.4l with a gen VI (used, from 2000 truck) and I want to replace these two oil pressure sensors. I believe one is for the alarm and one is for the gauge? On the mark IV, these were both directly above the oil filter. The gen VI only has a plug for...
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    Bravo 3 New/Old Style Interchange?

    I have what I believe is a new style bravo 3 (Seriel# 0w967086) that the upper gears are shot. There are grooves worn into the inside of the case and I am not sure if it is rebuildable. I have found the old style remanufactured uppers online saying they fit years 1995-2018, same thing with...
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    Merc 7.4l 454 Gen 4 to 5 interchangeable?

    I recently purchased a 1997 Maxum with a bad 7.4l/bravo 3. I am exploring my options for repower and came across what looks to be a good deal on a rebuilt gen 5 long block. I believe my current engine in the boat is a 1988-1991 gen 4 (serial # C602211) I am already planning on needing to...
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    Merc 7.4l water mixing with oil & low compression

    Hello guys, I just purchased a new project for the winter so I am sure I will have a lot of questions along the way. The boat is a 1997 Maxum 2800 SCR with a carbed 7.4l/bravo 3. I bought it knowing it had an issue or bad engine. Was told water was mixing with the oil. I never tried to...
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    New Sierra Merc 5.7l Starter Not Engaging Flywheel

    I am having starter troubles on my boat. Engine is about a 2000 model 5.7l carb engine. Towards the end of the season last year the starter started to sound bad. It got to a point where if it cranked for more than a couple seconds the appendix would disengage from the flywheel and just spin...
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    Where can I find these tilt cylinder washers?

    I noticed I was getting water in my tilt/trim fluid over the summer and when I brought the boat home for the winter I decided I was going to reseal the cylinders. When I pulled the first cylinder apart I believe the cap (not sure the actual name) was installed backwards in the tube and pressed...
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    Reinforcing Cleats?

    My boat originally had the standard 4 cleats from the factory, but someone has added another 4 folding cleats for fenders over the years before I got it. The hull is stamped "Fender Only" above the 4 added cleats. I am looking to strengthen the rear folding cleats to be able to tie up to those...
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    Adding a second inline fuel pump?

    I've got a Merc 5.7l with a 2bbl carb (Exact year/serial # unknown, late 90's or early 00's vortect engine) I've been battling an issue with for the last month or two at the lake. I believe I have narrowed it down to an issue with the fuel system. The boat will start up fine and jump right...
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    Upgrading floating boat lift capacity?

    I have an older model 4000# Hydrohoist floating lift with two tanks. I need to add a third tank to be able to pick my boat up. I already have a tank. Would I need to add a second control box or could I add the third tank to the hoses controlling the 2 original tanks? I would assume that if I...
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    Shift cable is stiff shifting to neutral?

    I have a 1995 Century with a 5.7l/alpha one. Last year I replaced the throttle/shifter control and replaced the throttle cable along with it. I can't remember if I replaced the shift cable along with the throttle cable or not. It was working perfectly, smooth as silk shifting. I stored it in...
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    Should I add an amp?

    I am about to replace my radio in my boat. I am looking thinking about going with a Sony from Academy (https://www.academy.com/shop/pdp/sony-220w-marine-digital-media-receiver-with-two-6-1-2-speakers#repChildCatid=4154149) and it comes with 2 speakers. My boat currently has 4 speakers, which I...
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    Evercoat One Step Finish Premium Gelcoat?

    Has anybody used this stuff? I have a 24' Century I am going to repaint the hull on over the winter. I was planning on just going with an automotive paint (which is on the hull currently) because gelcoat seems a lot harder/more work to do. Can this stuff be rolled/sprayed on without having to...
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    How to figure boat lift capacity?

    I am looking at buying a floating lift for my boat. I have found one but the guy doesn't know much about it. I am trying to figure out if the lift will lift my boat. There are 2 round fiberglass tanks. They are 2' wide and 16' long. I have tried to google it but couldn't come up with much...
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    Tips for making a custom fiberglass swim platform?

    So I would like to add a swim platform to my boat over the winter. Most places want over $2k (which I am sure is worth it) but I do not have the funds to pay for it. Nobody offers a platform for my boat, and would need me to take all the measurements for them to make one anyway, so I figure I...
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    Mercruiser 5.7l Cuts out at cruising speed

    The engine is a 1996 5.7l 2 barrel, with an alpha one gen 2 drive. This was my first summer with the boat, and it has been fine up until my last day out. I kept the boat in a covered slip on a lift and used the boat every weekend. I usually don't go too far from the marina with it. On our...
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