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  1. S

    Ignition Coil Test

    Last year my tech replaced the original coil (8M0054588) with a cheap one and it fixed the issue. Engine is giving the same symptoms as last year. I have a multimeter and measured the pins in the top connector across ground. From right to left I got 1.8/S/6/3 ohms but I don't have a reference...
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    Vapor Lock?

    Problem solved. A travelling mechanic came and scoped the line after the impeller and found the missing impeller pieces. They were restricting flow. Runs fine now.
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    Vapor Lock?

    Funny you should mention that. When I had the problem last week and opened the access to shut off the batteries man she was hot but the temp guage showed around 180. Yesterday took her out for a test run. Ran fine idle and fast. When I went to turn the batteries off after coming in she was...
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    Vapor Lock?

    Replaced impeller. It was pretty chewed up. There were pieces in the impeller housing. Good strong flow now out of the water distribution housing. I hope the other pieces just got/get expelled through the exhaust.
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    Vapor Lock?

    I only cranked it over once for a few seconds in the fall. I just got back from setting her in the water and opened the water distribution housing to let out what was left then started it up. Nothing came out. I have a B3. I have read where folks change impellers every year. My boat is an '05...
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    Vapor Lock?

    One more thing. I just checked the Water Distribution Housing. On this engine it's the lowest drain point. When I winterize I open it to let the water out then crank the engine over several times to ensure all the water is out of the lines. Then I secure it and fill the lines with antifreeze...
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    Vapor Lock?

    Oil pressure was fine dockside idle and idle cruising but when the knocking started I noticed the pressure start to dip but wouldn't that just be in relation to decreased RPM? Also the knocking sounded more like the sound a car makes when it keeps running after you've turned it off which is...
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    Vapor Lock?

    No knocking. She's on a lift so she ran for only a couple seconds. This evening I'll set her in the water and let her idle until she gets up to temp.
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    Vapor Lock?

    I have a '05 Crownline with a 260hp 5.0 MPI Mercruiser. Ran fine end of last season. Got her out, checked all fluids, new gas etc.. started her up first try, sat dockside until temp got up to normal and shut her down. Took her out for an idle cruise about an hour later. About 15 minutes in...
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    Something's Missing

    Got boat back on Friday after getting coupler replaced. After getting her warmed up took her for a spin. Struggled to get up to 30mph and felt like a car with a bad plug or two. Eventually got up to about 40. Didn't miss as much but still not right. Took her down to idle and drove around the...
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    Lower Unit?

    It's looking more like the coupler is shot as I did smell something like burnt rubber when it happened.
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    Lower Unit?

    If she's not in use then she's on a lift. Nothing on the hull except a mirror shine. Was carrying half capacity
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    Lower Unit?

    Crappy fuel even though the RPMs were good?
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    Lower Unit?

    Took the boat out yesterday for the first time this season. Let her warm up then around the lake at idle for about 45 minutes. Started a full speed run, all the gauges were fine but didn't get up to more than 20mph. Took her back down to idle and went back home. Couldn't do any troubleshooting...
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    Boat Lift Winch Wearing Out?

    I have an electric winch on my boat lift. It's about 7 years old and it just doesn't traverse up and down like it used to. Pretty slow especially after the boat starts to float .............. like the weight of the boat on the cradle is necessary to provide tension to turn the gears inside the...
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    Another Oil Pressure Question

    I have a 2005 Mercruiser 260hp 5.0L MPI with a little over 200 hours. I replaced my oil sender yesterday so now that gauge is working but it's revealed that even just idling around the lake at 700RPM my pressure is about 75psi. After I replaced the sender I changed the oil with the usual 25/40...
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    Dies After Warming Up, No Restart

    Have a '05 5.0L MPI 260HP and took her out yesterday for the first time this year. Left the dock before fully warmed up. Was out about 10 minutes and started to head in due to rain. Was at low rpms and she died. Wouldn't restart. Fortunately we were real close to the dock when she died...
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    Transome Drain Fitting Replacement

    Last Fall I was winterizing my boat (2005 Crownline 220EX) and while I was taking out the brass drain plug the whole fitting came off. It was only held on by 3 small brass screws and required some torque to get the plug on and off so it kind of seemed inevitable that it would fail some day...
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    Idle Air Control on 2005 Merc 5.0l 260hp

    deleted
  20. S

    DIY Boat Lift

    Anyone assemble and put in their lift by themselves?<br /><br />Mine is being delivered today, unassembled. Couldn't see paying someone to put together a man sized erector set so I'll do it myself. That shouldn't be a problem. What may be a problem is getting it in position. I have a 3ft seawall...
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