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  1. HeadAbove

    A1G2 Upper Unit Weep/Vent hole?

    Yikes. Don't blame you. Stay warm! I found 2 or 3 more of those "casting artifacts" in various other places on the drive. They all look like perfectly circular, filled holes, but are barely visible under the factory paint. I filled that deeper "dimple" in the photo, but won't bother with the...
  2. HeadAbove

    A1G2 Upper Unit Weep/Vent hole?

    I've since found a few photos online which show this same "dimple" on the stbd side of the gen2 upper unit. It is perfectly in-line with the oil passage that extends from the hole with the quad ring on the LU to the top of the UU. But after cleaning out this dimple - down to bare metal - I can...
  3. HeadAbove

    A1G2 Upper Unit Weep/Vent hole?

    Hi All, This off-season, I decided to strip the old, hard AF paint from my A1G2 sterndrive and refinish. In doing that, I have exposed a hole in the upper unit which I can't identify. I can't find any reference to this hole in Manual #14 or anywhere online. I've tried to clean it out, but it...
  4. HeadAbove

    Is my gimbal bearing sealed or greaseable

    Thank you, both. Not wanting to create more problems than I have right now, I'm not inclined to pull & replace it yet. So I guess I'll do as Scott06 suggested and run it until and unless it starts complaining. Really appreciate the inputs!
  5. HeadAbove

    Is my gimbal bearing sealed or greaseable

    After 3 pumps with new grease I was able to see it squeezing-out from between the bearing and tolerance ring. It didn't get harder to pump. I also couldn't find any of the new grease behind the bearing, in the gap in front of the grease seal. What would this tell you?
  6. HeadAbove

    Is my gimbal bearing sealed or greaseable

    Thanks, Scott06 and Alldodge. So a greaseable bearing installed incorrectly. Not what I was hoping to hear! I have been running this bearing about 20 hours every season since 2020. And giving it 3-5 pumps through the zerk every year. I wonder if it could have been getting some grease in the...
  7. HeadAbove

    Is my gimbal bearing sealed or greaseable

    Hi All, Based on the photo, is anyone able to tell whether this is a sealed or greaseable gimbal bearing? To be clear, I have no issues with my boat. The bearing looks and feels perfectly smooth and well lubricated and makes no noise when underway. But I would like to know if it is a sealed or...
  8. HeadAbove

    3.0L Raw Water Intake & Drain Port Questions

    Yeah, I'm feeling more confident about doing that now 👍. I did figure out that I'll need an additional bushing after I remove the plastic "T" from the manifold drain. (Mercury p/n 22-862557). All good.
  9. HeadAbove

    3.0L Raw Water Intake & Drain Port Questions

    Thanks. Yes, an air "admittance" vent is my best guess, too. But as I remove my sterndrive at the end of every season and also disconnect the raw water intake at the HE, that hose has all the opportunity it needs to drain from both ends without the additional vent. The installation instructions...
  10. HeadAbove

    3.0L Raw Water Intake & Drain Port Questions

    Thanks, Scott. Helpful detail. I did understand the principles of both systems, I just couldn't reconcile those principles with what I thought I was seeing in my boat. Turns out I completely misremembered the set-up and it wasn't until I could get into it today that I resolved most of my...
  11. HeadAbove

    3.0L Raw Water Intake & Drain Port Questions

    Thanks. I'll get some pics together ASAP.
  12. HeadAbove

    3.0L Raw Water Intake & Drain Port Questions

    Hi All, Mercruiser 3.0L (1A311803); Aftermarket closed cooling half-system; A1G2 drive. I'm trying to simplify my current hoses, routings and drain process, mainly because the PO who installed the aftermarket closed cooling system left some of the superfluous OEM fittings in place. (I've read...
  13. HeadAbove

    3.0L TKS Spacer Block Missing

    Very cool. Thanks for those links, Fun. (y) So definitely a structural brace, then. I'll find one to install. Maybe I'll notice a reduction in vibration when I do... 🤷‍♂️ Rob
  14. HeadAbove

    3.0L TKS Spacer Block Missing

    #4 on this diagram: https://www.mercruiserparts.com/bam/subassembly/30908/13603/210 ...Not that it explains much.
  15. HeadAbove

    3.0L TKS Spacer Block Missing

    Hi All, Quick intro: Former sailor and current owner of a 2008 20ft Bayliner I/O cuddy, a Mercruiser 3.0L TKS motor (s/n 1A311803) with a closed cooling half-system and an Alpha One Gen II sterndrive. Used exclusively in salt water. In the 4 years I've owned the boat, I've been working my way...
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