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  1. C

    Bad compression test on 4 & 6 cylinders

    I think it’s bad.
  2. C

    Mercruiser 120 Help with wiring the ignition coil (and distributor, possible upgrade to electronic ignition)

    Not to highjack the thread, but I too have an old 120 and do not trust the 50-year old analog Craftsman dwell meter I have left over from back in the day. I do have a Fluke 101 multimeter bought recently (6 years ago), and understand that I can measure % duty cycle, and convert that to dwell...
  3. C

    Neutral safety switch replacement- 1990 - 4.3 mercruiser

    Yes my comments only apply to a neutral safety switch in the controller up by the steering wheel.
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    Neutral safety switch replacement- 1990 - 4.3 mercruiser

    No pos or neg sides to the switch. You can wire it in either way. It works by breaking the connection from the ignition switch to the starter solenoid.
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    Twin Mercruiser 165's and Drives Complete For Sale

    Might want to clarify your asking price.
  6. C

    Dipstick tube replacement

    Shoot. I was trying to solve the problem from 2006. Sorry everybody.
  7. C

    Dipstick tube replacement

    In your situation, I would think about carefully cutting off the top of the tube with a mini tubing cutter, the kind with a rolling cutter wheel like this. You can get one for less than $5 at JEGS. You could also use snips or a hack saw, but it would not be pretty. Cut the tube off below the...
  8. C

    Mercruiser 120 lower unit

    I used to have a herd of donkeys, but they were both females.
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    Mercruiser 120 lower unit

    The way I understand it, having worked on exactly one outdrive, but after studying it thoroughly and with a lot of unrelated mechanical background, is that once the shims are set the first time at the factory the spacings don't change over time. You have to reshim if new parts like bearings or...
  10. C

    Mercruiser 120 lower unit

    "You seem to want a QUICK FIX." A quick fix would be to buy an SEI and be done with it. Or dropping it off at a shop and picking it up when it is done. Fixing it himself will be a slow, interesting, fix. He is probing whether that is feasible.
  11. C

    Mercruiser 120 lower unit

    An alternative strategy for going forward, so to speak, would be to put it back together with a seal kit after welding, and running it until it blows up. Might run forever behind a low-power 120 and with typical low annual running hours for a recreational boat. Only recommended in...
  12. C

    Mercruiser 120 lower unit

    Those stains on the rollers look like pitting. Can you catch a fingernail on them?
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    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    You sound like you are holding to the possibility that it is the belt. If you feel lucky and have time, get a new belt and find out. Afterwards, you'll have a spare!
  14. C

    302 Mercruiser 888 Project

    Hi, Tyler. Good luck with your project. I've been working on something similar. A 70's era runabout with a Merc 120. I bought it a year ago, full of snow and pine cones. Had not been run for a few years. The boat was free, essentially, since the trailer was worth what I paid for the boat...
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    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    13.21 would be in the normal range. It can vary anywhere from 13.0 to 14.5 and be fine. Your alternator is charging, but the front bearing has likely gone bad. There may be an automotive electrical shop in your area, look for one that does Generators, Starters, Alternators. Getting them to...
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    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    Right, could also be the water pump which is driven by a belt. Forgot about that one. Should not take very long to figure out which, and get it repaired.
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    Is this an issue with the belt of my 2008 3.0L MerCruiser?

    Yeah, it's an issue. Something is very unhappy. But it is probably not a belt itself, since they don't make noises. It is something driven by a belt, either the power steering pump or the alternator. You can figure out which by removing the power steering belt (the first one that is...
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    Mercruiser Starter Brand Options

    Also, there still exist little independent shops that specialize in fixing starters, generators, and alternators. Not everywhere, but there just happens to be one 10 minutes from my house. That's where I would go first if this was my problem.
  19. C

    Mercruiser Starter Brand Options

    Quicksilver. [End of story.]
  20. C

    Mercruiser 120 lower unit

    Yep, doing it yourself, you know what was done, right or wrong. Sometimes you get the fun of doing it a second time.
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