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    Battery issue Mercruiser 3.0

    Hi all, Have a 1989 Searay with a 3.0 liter merccuiser engine. For the last little while when under way the engine stalls...it restarts but always with a slugish battery turnover. I removed the battery and fully charged it to 13.7v. then returned it to the boat. I put a multimeter on the cables...
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    Mercruiser 3.0 electrical problem?

    Hi all, I have a 1989 SeaRay 160 bow rider with a mercruiser 3.0. Today I was having trouble starting it, so checked the battery....11.22v. I used a battery pack to start the motor thinking that if I took it for a good run the battery would charge. Whilst underway the guages that were electric...
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    Damaged leg

    Hi all, Taking the boat out for the winter, I forgot to lift the lag, and have broken off a small chunk right at the end of the fin. Can this be rounded out with a grinder or.....? and will it affect the running of the boat? Also, last time the boat was out the tach worked fine..this time no...
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    Mercruiser 3.0 unexplained rotational noise

    Hi all, Just put my boat in the water for the first time this season, and have noticed a rotational noise and slight vibration when in gear that increases with the rpm. This does not happen when out of gear. Can someone suggest where I start to diagnose what the issue might be? Thanks
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    Swim grid ladder mounting

    Hi all, Last year I posted about changing out my swim grid ladder....the current one is too short for an oldie like me, and I'm finally getting around to it. The problem I have is the Hoffen 4 step telescoping ladder, and the reviews I've read suggest that using the screws that came with it to...
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    Some questions about windshield and seat post

    Hi all, Have a 1989 SeaRay BR160 that has been a work in progress this summer with various problems...however now she seems to be running really well. This was a boat bought from a salvage yard....it had been beached in a storm. The issue I have is the pass through window on the windshield does...
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    Mercruiser 3.0 oil gauge problem

    Have a 1989 mercruiser 3.0. When running at low rpm and speed the oil pressure gauge reads just under 30, but when I increase speed it drops to zero. Anyone help with troubleshooting this? What should normal oil pressure read at say 3000 rpms? Thanks
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    Mercruiser 3.0 Alpha One #OC597939 parts help

    I have the above listed motor, but don't have an owners manual or a service manual.I recently had some issues with starting and had a tech look at it...there was a ground leak from the coil which caused the starting problem While fixing this, he suggested I replace both the plugs and the...
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    Older mercury 3.0 suddenly won't start

    Hi all, Brought my SeaRay 160 to the dock to replace a tach. Did the replacement, and now the boat fires up for a second but does immediately. Thinking it had something to do with the tach wiring, I completely disconnected the new tach....but still the same problem. Any help or troubleshooting...
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    New tach install problems

    Hi all, Just installed a new faria tach in the boat, and followed the wiring diagram that came with it. Once installed, when the ignition is turned on the tach starts to creep up even tho there is no motor running. Anyone any ideas as to what causes this? The tach is set on the back to the #1...
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    Replacing swim ladder....best way to deal with small holes?

    Hi all, Just replacing my swim ladder on the boat....the one that's on there only has two rungs, and me and the wife are at an age where getting our legs up that high becomes a challenge!:laugh::laugh: The mounting brackets for the new ladder are different in size, and thought I'm able to use...
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    Ways to mount anchor light to boat cover on bouy

    Hi all, Just wondered if anyone has mounted an anchor light to a boat cover when the boat is on the bouy overnight? My boat spends three to four months on the bouy at night with a cover on during the summer, and with the Lake getting busier each year I want to mount an anchor light for the hours...
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    Mariner 4 with intex outboard mount. Problem with Suzuki 2.5hp outboard.

    Hi gang, Just bought a mariner 4 complete with the intex outboard mounting bracket, but my Suzuki 2.5hp doesn't seem to work well with this mount. The problem is that the throttle cable on the outboard is contained in a metal sleeve that runs in a curve below the tiller, and this catches on the...
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    Mecruiser 3.0 power steering issue

    Hi all, Last Fall I had a problem with both power steering fluid and trim fluid being milky, indicating water. I addressed both issues as per guidance from here and drained both systems and refilled with fresh oil, having bled both. Just put the boat in for the first time this year....power...
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    Temp in older Mercruiser 3.0

    Hi all, Have an older mercruiser 3.0 circa 1990 that runs at idle about 140F. Is this okay for this vintage motor or should I be anticipating problems....thermostat, impeller etc.? I thought I had seen somewhere that this normal.....any help would be appreciated. Thanks ps. This is copied from...
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    Suzuki 2.5hp not able to idle

    Hi gang, Have a used 2.5 go Suzuki outboard that I just fired up for the first time this year. Starts fine, but won't run on idle. I did put stabiliser in the tank last winter, but the gas smells very sweet. Should I change out the gas and try, or maybe add some carb cleaner to fresh fuel? Any...
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    Valve leaking on Mariner 4

    Hi everyone, Just wondering if anyone else has come across this issue before? I bought the boat last April, and it spent maybe 2 hours on the water all of last summer. Everything was good. I washed it and stored it neatly for the winter with very few folds and indoors. This week, I brought it to...
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    USB charger??

    Hi all, Just installed a duel USB/12v outlet in my boat. There is an LED that is permanently on on the USB side of the charger that indicates it's powered. My question is should I be concerned that this may drain my battery? Thx
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    Mercruiser 3.0 rpms suddenly higher than normal

    Hi all, Have a question about sudden high rpms in a mercruiser 3.0. The engine is showing 4900 - 5000 rpms at 35mph?? This has just started happening and is certainly higher than it has run in the past. I know the prop hub is not slipping as prop and hub brand new...any ideas as to how to...
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    Mercruiser Alpha One power steering reservoir frothy pink

    Hi all, Brand new here and fairly new to boating. Just inherited a 1990 searay 16' with a 3.0 mercruiser engine and alpha one sterndrive. While winterising, I checked the power steering reservoir and found a creamy pink frothy situation in there. I know its water, but my question is where did it...
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