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    Mercruiser 3.0 No Spark issues

    Exhaust relief ports? Could you explain please. And if by upper and lower you mean the bell housing part from the drive, that is possible. I didn't take the lower with the prop shaft off of the upper, I just slid the entire drive out of the bell housing. But I was suspect of the connection in...
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    Mercruiser 3.0 No Spark issues

    Exhaust relief ports? Could you explain please. And if by upper and lower you mean the bell housing part from the drive, that is possible. I didn't take the lower with the prop shaft off of the upper, I just slid the entire drive out of the bell housing. But I was suspect of the connection in...
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    Mercruiser 3.0 No Spark issues

    Well, not quite going to plan. After much attempted adjustment of the shift cable, I can't get into forwards with the trim all the way down. If I trim up above the trim limit, then it will go into forwards. Could something be misaligned in the bell housing, should I pull the drive back off...
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    Mercruiser 3.0 No Spark issues

    After a few more tries of pulling the drive back out, re-alining, it still wouldn't slide in. I got it on the threads enough to get nuts on. Then I tightened them in star pattern. This pulled this drive up snug pretty easily, didn't feel like it was binding on anything it just needed help to...
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    Mercruiser 3.0 No Spark issues

    So I can't get the drive back on.. I verified the drive and the helm are in forward, but the drive won't go all the way in. I tried aligning the gimbal bearing multiple times to no avail. Here is a photo of how far I have left to go. If I use a hammer and a block of wood on the back of the drive...
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    Mercruiser 3.0 No Spark issues

    Just ran outside to check... They look good to me. Even mated them together no problems ... Will confirm what you said when I go to reinstall the drive. So I should put the shifter in forwards before reinstalling?
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    Mercruiser 3.0 No Spark issues

    Oh, I will mention that I made a mistake and removed the drive with the boat in neutral. I knew I was supposed to have it in forward but it slipped my mind. Is there anything I need to do when reinstalling the drive now that I removed it incorrectly?
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    Mercruiser 3.0 No Spark issues

    I'm replacing the entire shift cable with a new quicksilver one, I figured while I'm down here might as well. I'm also replacing the trim sender/sensors as my gauge doesn't work and neither does my trim up switch, only trailer up works.
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    Mercruiser 3.0 No Spark issues

    Got my outdrive and all the bellows off today. Someone please tell me putting the new ones on is easier.. anyways I found a lot of water in the driveshaft bellows. I'm replacing the gimbal bearing because the current one has a rough spot. The U-Joints seem okay. No binding or grinding very...
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    Mercruiser 3.0 No Spark issues

    Yea, that's exactly how I would describe the noise. Very clacky. Seems like the sounds just come with the engine though, will keep an eye on the plugs on my next few outings and update accordingly. Thanks everyone
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    Mercruiser 3.0 No Spark issues

    One other thing I "changed" is that when I was checking the fuel pickup, the tube was screwed into the tank only hand tight. When I put it back in I tightened it a bit more snugly. Is this a potential area for an air leak into the line and should I use some sealant on the treads?
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    Mercruiser 3.0 No Spark issues

    As dubs mentioned it is a more inconsistent rattle vs a knock or pinging sound. The BB in a tin can noise is no longer present that I described when originally starting the thread, whether that is due to higher octane fuel or getting my timing sorted out I'm not sure. Anyways, I will continue to...
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    Mercruiser 3.0 No Spark issues

    Just for kicks here is a video of the motor running without the cover to hear it better. I can hear a bit of racket when I throttle up, mostly noticeable in the last couple seconds of video. I might be overthinking the sound but hard to tell what it is https://photos.app.goo.gl/8x63zJ9wPhPXunDN9
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    Mercruiser 3.0 No Spark issues

    Thanks Chris I'll have a look tomorrow and update
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    Mercruiser 3.0 No Spark issues

    Will do
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    Mercruiser 3.0 No Spark issues

    Thanks Chris will look into getting one
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    Mercruiser 3.0 No Spark issues

    The PO stated that he replaced the carb so it's possible the jetting isn't to spec. How much would you jet up?
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    Mercruiser 3.0 No Spark issues

    Okay, so timing is good. And yes the plugs have about an hour or two total on them. They're practically brand new. Think it's safe to just run the boat for a bit now? I will add that on the first acceleration of the day out of no wake, it will bog under immediate throttle. If you ease into...
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    Mercruiser 3.0 No Spark issues

    A few plug pics after a high throttle / WOT run. I still hear some chatter / rattle at higher RPMs. Not sure if it really is knock or not
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    Mercruiser 3.0 No Spark issues

    Was able to get out with my digital timing light to check advance. I have base timing set at 1BTDC according to this timing tab. At 2600 RPM with my timing gun set to 23 degrees, the timing mark was showing around 8BTDC . When I turned my timing gun to 28 degrees , the timing mark was about on...
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