Recent content by Arronh

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    1968 20hp lower unit seals

    Hello. I’m in the process of restoring a 68 mercury 20hp. The lower seals need to be replaced. I’m having a tough time finding instructional videos. Does anyone have a good resource? I’ve done similarly-sized Johnsons from roughly the same time period. Am I going to run into any...
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    Lower unit 68 200 20hp

    That’s good news. Thank you
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    Lower unit 68 200 20hp

    Here’s a video attempting to show more. There’s less oil bubbling out now, but still bubbling out a bit.
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    Lower unit 68 200 20hp

    Hello. I’ve been working on a 1968 200. It’s finally nice enough to get outside and put some muffs on it. I’ve attached a picture, and within the red circle, I’m getting some oily bubbles. I’m also seeing oil coming from the holes right above the prop. Does this sound like I need to replace...
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    Mercury 1968 200 20hp prop

    It does have a red decal. What is the significance of that? I just picked this outboard up as a project a couple months ago for $80.
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    Mercury 1968 200 20hp prop

    Haven’t been able to find anything. Maybe a better question is this. I’ve fixed the starter solenoid, fuel pump, impeller, lower seals, fuel lines, some electrical issues, some carb issues, and recoil. It’s starts and runs great now. Is it worth a $200 prop?
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    Mercury 1968 200 20hp prop

    Hello. I’m having a tough time finding a prop. A couple of shops have looked and all they can find are around $200. Does anyone have a lead on a prop for less money that would fit this outboard? My current prop has damage and it’s spun out. It’s a 68 merc 200 20hp Thank you.
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    Throttle shaft

    I got a tachometer sensor today. Anyone know what the recommended low idle rpm is in addition to the previous questions I posted?
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    Throttle shaft

    Also, I’m going to pressure test the lower unit. How much pressure should that hold and for how long? I’m just wanting to test as much as possible before loading the parts cannon
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    Throttle shaft

    How much pressure should an inlet needle valve be able to hold? I have a pressure tester, so I might as well take a look.
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    Throttle shaft

    Thanks. I’ll order a needle valve and float. Regardless of the overflow condition, should I be concerned at all that gas can even go down the throttle shaft, or is that normal?
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    Throttle shaft

    Hello. I have a 68 200 (20hp). It’s dripping some gas from the throttle shaft. I took apart the carb. There’s no o-ring or anything to prevent fuel from leaking down the shaft, and there’s a bit of play in the shaft. How can I prevent fuel from leaking down there? Also, I have this set to...
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    1987 mercury 115 bogs after full throttle

    Depending on what you find with the primer bulb test, you could also try to choke the engine as a separate test to see if there's a carb issue.
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    electrical and tilt lock: 1968 mercury 200

    This was my assumption, but wanted to confirm with a proper wiring diagram. Any ideas where I can find an accurate one? I found a website with lots of wiring diagrams. Which of the ones from the attachment do you think would be correct? Here's where my confusion comes in. I can start this...
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    electrical and tilt lock: 1968 mercury 200

    Hello. Does the 68 Mercury 200 have a battery charging system? Is the attached wiring diagram correct? I'm having a tough time finding a diagram that I can confirm is the correct one. I'm trying to use this as a tiller with the remote box, so I want to install a push-button starter switch...
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