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    Distributor Rotor

    Mercruiser 3.0 ENGINE SERIAL NUMBER 1A014158 Is the Rotor cap sealed with Loctite? If yes what is the best way to remove it? Thanks.
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    Mercruiser Problem

    I have a 2007 Glastron GT205 with a standard 4 Cyl Mercruiser package. This is the third season for the boat. Recently, the Drive Belt for the Generator shredded and it was replaced along with the Power Steering belt. I also put in new spark plugs. After that, WOT was lower at 3,000 rpm. It...
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    Cleaning Stern Drive

    I keep my boat in the water over the season and this year when I pulled it there wasn't time that day to clean the Stern Drive. There is a lot of dried green gunk or maybe algae on it. What do you use to clean it without taking the paint off?
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    Idle Adjust Mercruiser 3.0L

    I have a 2007 Glastron GT-205 with the 4 Cyl. Mercrusier. This year the idle seems low in neutral about 500 rpm. The engine runs fine but it can once in a while stumble when it's put in gear due to the low RPM. I don't want to mess with the mixture screws. Can I add maybe 200 RPM by adjusting...
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    Spark Plugs

    I have a 2007 Glastron with a 3.0 4cyl Mercruiser GM engine. The Manual calls for an AC-MR43LTS spark plug. When I went to NAPA they sold me an AC Delco #8 Platinum plug which they said was equivalent. Is this true? What does Platinum do for a plug?
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    Winter Storage

    Please do not move this thread. I have a Merc Stern Drive with a 35 Gallon Gas Tank and want to hear what like owners think. I know what Merc recommends but Boat U.S. is also highly respected and I would like to hear some dialog. Boat U.S. recently came out with a recommendation that boats in...
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    Winter Storage Gas Or No Gas

    Boat U.S. recently came out with a recommendation that boats in winter storage should have their tanks filled to 95%. According to them it helps to prevent phase separation of the Ethanol Gas. Once that happens they also say a water separator or treatment doesn't help. Merc and my dealer say...
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    Thermostat

    I have a 2007 Mercruiser 3.0 raw water engine. I wanted to take the Thermostat out to add some anti-freeze for winter. There is a white plastic looking collar above the Thermostat and I'm not sure if that has to come out but I couldn't get the the stat to budge. I didn't want to ruin it. Any...
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    Two Batteries

    I am picking up a new Stern Drive Glastron boat in a couple of days. The Dealer installed a second battery with a switch for 1-2-Both-Off. The batteries have different amp hour capacities. After starting on 1 and then switching to Both for charging will this be a problem since the batteries...
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    MERCRUISER 3.0 SPARK PLUG GAP

    This is a new engine 135HP, 4Cyl, with Carb. Owners Manual says spark plug gap of .045 or .9mm. Problem is .9mm is the same as a .035 Gap so one is wrong. The Repair Manuals I have read say .035. Which is it?
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    2007 GLASTRON GT205 BILGE PUMP QUESTION

    I'm getting ready to buy the GT205 runabout. All water drainage goes into the bilge and is automatically pumped out. Being an old sailor I'm used to open drains out of the cockpit or scuppers. Is a Bilge Pump only a liability especially if left in the water? I am getting double batteries and...
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