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    Winterizing Using Muffs

    260 MerCruiser Alpha 1 If I w 260 MerCruiser Alpha 1 If I would warm the engine up to operating temp. using the muffs so that the thermostat was open. Then switch over to a tank with pure -100 marine antifreeze without draining the engine. Why wouldn't running the engine with the antifreeze...
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    Dash Mounted Temp Gauge Testing

    On my 1990 260 MerCruiser I ha On my 1990 260 MerCruiser I have replaced the temp. sending unit on the thermostat housing and my IR gun reads from 135-145 degrees when measuring right on the brass base of the temp. sending unit. The gauge on the dash reads close to 170 degrees. Is there any way...
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    57 Running A little Warmer Than Normal

    "I have a 1990 MerCruiser 260 "I have a 1990 MerCruiser 260 that seems to be running a little warmer than normal. The impeller, water pickup hose, and thermostat have all been replaced. The temp gauge reads from Cold to Hot with just 5 markers between them.It's reading a bout in the middle. The...
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    Removing Flywheel from V4 Crossflow

    "1989 115 1.6 liter,power trim "1989 115 1.6 liter,power trim.What size socket is needed for the flywheel nut?Also what size bolts do you need for the flywheel puller?Thanks"
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    Faulty RegulatorRectifier Combo

    "I have a 1989 OMC SeaDrive 11 "I have a 1989 OMC SeaDrive 115.The motor runs fine but my tach is messed up.The tach works fine up to 3000 rpm and when I gave it more gas the tach starts reading lower until I back down below 3000.Then it works fine again. I checked continuity on reg/rect-it...
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    Faulty Tach

    "Hello,I have a 1989 OMC SeaDr "Hello,I have a 1989 OMC SeaDrive V-4,115H.P.I had the boat out for the first time time today.The Tach seemed to work just fine until I hit 3000 rpm or higher.When I go faster than 3000 the tach starts to read lower, the more gas I give the lower the reading I...
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    Water Shutters

    How hard of a job is it to rep How hard of a job is it to replace the water shutters in a 1990 260 Mercruiser?I've been told you can unclamp the hoses and slide them down the "Y" pipe to get at the shutters.
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    Bypassing Trim Limit Switch

    What is the method for bypassi What is the method for bypassing these trim limit switches?Do you just disconnect the 2 bullet connectors and join the 2 wires together?
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