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    Converting 5.0 mpi to closed cooling

    Cats started CA in 2008. Mine is a 2011 and it has them and boat was purchased in FLA. Funny thing is the 2011 V6 and carb V8 doesn't have them. In 2012 I believe they dropped the carb option and they all have Cats. My doesn't have cats as I have eliminated them. Cats aren't the problem its...
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    Converting 5.0 mpi to closed cooling

    Good point who know where the boat will be in10 years. Makes sense!
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    Converting 5.0 mpi to closed cooling

    Hello, I have a 2011 Mercruiser5.0 mpi Catalyst engine. Just dropped $1600 on manifolds and risers. Does anyone have any experience with converting a salt water engine to closed cooling? My new manifolds have zero scale, I am wondering if my engine block has enough rust scale that it will...
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    2003 SeaRay 200 Bowrider seized engine????!!!!

    At one time in Houston there was a complete 5.0 mpi for $4500, complete drop in, manifolds, pcm, coupler etc. I would definitely investigate someone selling an engine due to repower. I think its on eBay right now at $5500 but might have sold. Just another option
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    Alpha 1 Gen 2 Vertical Play

    I had something similar. The steering pin was loose, i cranked down on it and problem solved. It has two nuts looks like a clamp.
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    Merc alpha1 gen 1 shift cable

    the gen 2 part will fit the gen 1. the change took place around 199?. Original part was just a lip seal, new part extended a little into the exhaust passage. Mercruiser Alpha One Shift Shaft Bushing 87561 18-2622 23-805041A2
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    Beware of Shorelander/Midwest Industries Trailers

    Hey ding dongs. I had a tire last week about to explode due to belts breaking allowing a huge bulge to form in 2020. If Shorelander wouldn't have used 3 year old trailer tires on a NEW trailer in 2017 it wouldn't have bulged/blown out last week. In other words my Shorelander trailer which...
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    Beware of Shorelander/Midwest Industries Trailers

    I purchased a new 2017 Shorelander trailer for my Searay 205 in 2017. The trailer was still on manufactures certificate of origin. First issue was they over torqued the lug nuts which forced the conical section of the lug nut to get compressed in the wheel and very difficult to remove as it...
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    Gasket failure between outdrive and gimbal.

    Anybody have experience with the gasket between outdrive and gimbal housing coming out on side next to water inlet passage. My installation pictures I took when installing two years ago look perfect. I would say 3/4 width of gasket came out. I smeared some RTV in groove which turned out perfect...
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    5.0 MPI Converting Cat manifolds to Non-Cat Manifolds

    I have a 2011 Mercruiser 5.0 MPI with Catalyst manifolds. Since the rear oxygen sensors rotted away every 18 months and threw an alarm I eliminated them with the CPI module. It simulates the rear oxygen sensors so your PCM doesn't throw a code. The rear O2 sensors only purpose in life is to tell...
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    5.0 MPI noise just as engine fires. Link to vide attached

    Been chasing a noise just as engine starts for months now. Originally thought was starter but not so sure anymore. Just as engine fires it generates a tick tick tick noise, sometimes a whistle type sound, sometimes a screeching sound and sometimes zero sound. Starter bolts tight and correct...
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    Mercruiser 5.0 mpi starter noise just as engine starts 2011

    I have a 2011 Mercruiser 5.0 MPI. Starter works fine but just as engine starts it gives a high pitched noise similar to belt slipping but it not the belt. It is the starter. does it 7 out of 10 starts. three starts it doesn't make any noise. It appears it is aftermarket API Marine 10099HD...
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    Mercury Fault Code 312 - Port side pre Cat oxygen sensor slow to respone

    Hello, Pulled Mercury fault Code 312 this my Rinda after the alarm went off. Mercruiser 5.0 mpi with Catalyst (puke). Boat runs flawless and oxygen sensor was replaced 2 years ago. Tested oxygen sensor with multi-meter and heater leads had 9.5 ohms and open connection between signal wire s...
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    2003 Mercruiser 6.2 liter issues? relaibility/

    I looking at a 2003 Baja Islander 212 with a Mercruiser 6.2 liter and bravo 1. Only has 80 hours. Is the 6.2 liter known to be a reliable engine as compared to the 350Mag? I seen some post with engine failures. Anybody have any experience?
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    Mercruiser 5.0 MPI Cat / 1 beep per minute but no code.

    Hello, I have an 2012 Mercruiser 5.0 mpi with catalyst. Boat runs perfect. I get a single beep once per minute only when engine running, not when key is just on. I checked with my Rinda and no codes were found under diagnostics or freeze frame. Does anybody have any idea why the horn would sound...
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