Recent content by nickmo

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    Running cold

    2011 5.7 MPI. The engine runs at about 110-120 on gauge and infrared thermo. Changed the thermostat twice this season. The last one I pulled out I inspected. It was closed. Placed it in hot water, it opened and closed when I removed it. What else could cause it to run cold?
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    Engine misfire Spark plug condition

    5.0 Mercruiser TKS. A few days ago I developed a misfire in my motor. I couldn't remember the last time I changed plugs so I bought spark plugs distributor cap and rotor. I began pulling plugs. They looked normally worn until I got the # 5 plug out. I should have posted a pic, but this plug...
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    No crank

    Mercruiser 5.0 TKS. I started motor, was idling a minute or 2 then just stalled. I tried to restart, had no buzzer, no lights, no horn and no click or crank. Battery is new and reading 12.8 volts. Battery cables are clean and tight. Circuit breaker behind carb is not tripped. Any help appreciated.
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    Temperature code

    Posting for my Son-in-law, he has a 2011 Searay with 5.7 MPI Bravo drive. He is getting a Temperature non critical fault on his dash. We replaced the thermostat that was stuck open which cured all the low temp issues. Do you need special equipment to erase the code? Thanks!
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    Where to install clear tubing

    5.0 liter TKS Alpha 1 Gen 2 drive. I've been dealing with a high speed overheat for a while now. According to the Mercruiser Bulletin, to test for air in the system, install a clear hose from the tstat housing to the starboard riser. Others say install the hose after the power steering cooler...
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    Prop info

    2001 SeaRay 210 Bowrider, 2008 5.0 liter Mercruiser TKS 2 bbl. carbed motor, Alpa 1 Gen 2 drive. Current prop is Power Tech SS 14 1/2x21 3 blade. At WOT Tach reads 4400 rpm. Speed 42 MPH. Bottom is fairly clean 2 people 1/2 tank of gas and minimal gear. Does it sound like I'm over propped...
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    Gimbal bearing replacement

    Hi everyone, I know this has been discussed before, but can't seem to find it. I replaced the gimbal bearing on my Alpha 1 Gen 2. It is the greasable type. How many pumps of grease for the initial greasing? Thanks
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    New season. Still chasing an overheat problem

    2008 Mercruiser 5.0 liter TKS Alpha 1 Gen 2 Raw water cooled. Engine begins running hot over 3000 rpms. If you back off it will cool down. Will run at normal temp all day as long as rpms are under 3000. Here's what I've done so far. 1 Changed manifolds and risers. They were 8 years old...
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    Bellows replacement

    Hi all, Alpha 1 Gen 2 drive. Is it possible/practical to change the u joint and exhaust bellows correctly without removing the bell housing? Shift cable and its bellows is good.
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    Alpha 1 Gen 2 u joint bellows leak

    Pulled the boat for the winter and pulled the drive. There is a small amount of water in the bellows. The gimbal bearing doesn't turn smoothly so i will replace that. The u joints seem ok, but will replace them also. My question is: The yokes are a bit rusty, not pitted, seems to be only surface...
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    Globe impellers

    Are these worth the additional $$$? Will they actually survive running dry?
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    Gimbal bearing question

    5.0 Mercruiser Alpha 1 Gen 2 In May of this year before splashing the boat, I did new bellows, shift cable and gimbal bearing. These were all done as preventitive maintenance. There was no water intrusion. The shift cable was OEM. The bellows kit and gimbal bearing was not. Here we are in late...
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    Thermostat

    I have a 2008 5.0 TKS RWC. The specs call for a 160 thermostat, but I.ve read a 140 is better in a salt water engine. Thoughts?
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    Another overheat question.

    Mercruiser 5.0 carb. Alpha 1 Gen 2 drive. A few weeks ago I was running the boat and trimmed the drive up too high (switch stuck) and smoked the impeller. I changed the impeller (no pieces missing) and all was ok except that the motor was running hotter than it should (about 180) but was the...
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    Manifolds and risers

    Hi all, I'm replacing dry joint manifolds and risers on a 2008 5.0 TKS and have a couple of questions. 1. Do you use any gasket sealer on the manifold or riser gaskets if so what product? 2. Do the threads on the brass fittings that were removed from the old parts have to be sealed before...
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