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  1. tpenfield

    Need help: Bizarre Bravo III freshwater galvanic corrosion quandry

    Here is my thread on the gimbal anodes . . . https://forums.iboats.com/threads/bravo-3-more-anodes.706756/
  2. tpenfield

    Need help: Bizarre Bravo III freshwater galvanic corrosion quandry

    I have a thread somewhere here on iBoats that shows the gimbal ring anodes that I added.
  3. tpenfield

    Flat tire on haul-out today . . .

    Mystery solved . . . It was a flakey valve stem (valve actually). When I check the pressure it starts leaking. When I check it again it stops leaking. Looks like a new valve stem should do it. :D
  4. tpenfield

    Flat tire on haul-out today . . .

    Quick update . . . This morning I checked the suspect tire and it was flat (again). So, there must be something going on. Soapy water has not revealed anything . . . So, I have the tire in a dunk tank, looking for bubbles.
  5. tpenfield

    Flat tire on haul-out today . . .

    "80 mph" towing your RV trailer . . . :oops: Not sure there is a recommended speed (RPM) for trailer tires :unsure:
  6. tpenfield

    Flat tire on haul-out today . . .

    I took some measurements and this is what I came up with for balance point (referenced from the center axle) . 13,600 lbs. total Weight . . . . So the balance point looks to be right over the forward axle. Tongue weight is 9%. EDIT: Corrected my diagram above.
  7. tpenfield

    Need help: Bizarre Bravo III freshwater galvanic corrosion quandry

    It does not look like your anodes are depleting (if they have been on for a couple of months). If they are not depleting, then they are not working. Are you using the 'star' washers to get a good electrical bond to the anodes? The corrosion does not look too bad, except for the steering pin...
  8. tpenfield

    Flat tire on haul-out today . . .

    OMG . . . surprised she made it home.
  9. tpenfield

    Flat tire on haul-out today . . .

    Yes, in my reading on tri-axle trailers, the weight should be a little bit forward, which makes sense. It just seems quite a bit forward, but maybe it is OK. In terms of a 60/40 split, I assume it would be referenced to the center axle. Last time I measured the tongue weight it was 1,260 lbs...
  10. tpenfield

    Flat tire on haul-out today . . .

    This trailer incident has got me thinking about the balance point on the trailer. . . . According to the Mfg spec./drawing the balance point of the boat is 104" forward of the transom keel. . I measured that point on the trailer . . . . It puts it at the rear edge of the front tire. I...
  11. tpenfield

    Flat tire on haul-out today . . .

    Yes, someone letting the air out . . . another possibility. I had a situation with my car a few weeks ago parked in a parking lot over night. The left rear tire was down about 10 psi. I figured it was a nail or something. But upon re-inflating the tire, it has stayed at the inflation psi for...
  12. tpenfield

    Flat tire on haul-out today . . .

    The tire seems to be fine having driven flat the 1-2 miles back to my house @ 20 ish mph. Just doing the math . . . > The tires are rated for 2800 lbs each. So, 5,600 vs. 8,400 with one tire out of action (of 3 tires). > The axles are rated at 5,200 lbs each (2,600 lb/wheel) getting to the...
  13. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    I tend to agree . . . I could put both trims on the port side panel and move the fuel over to the starboard side panel or . . . I could put the trim display on (and in addition to) the tachometer displays for closer proximity, and maybe free up a whole panel area by moving the fuel gauge to...
  14. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Thinking ahead as I get ready to take things apart I am trying to figure out what components should be removed and what should stay. A lot of it depends on engine choice. Here is my instrument panel drawing . . . If I go with Yammy or Zukes, then everything 'Mercury' related would come out...
  15. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    The factory OB versions of this boat (CY 338) have a 230 gallon fuel tank, which stretches a little further back towards the stern than the sterndrive fuel tank (150 gallons). I'm not sure of the rationale behind the different sizes. . . I would think 150 gallons would be enough and my...
  16. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    IDK . . . maybe. Not sure how I could tell. Anyway, enough changes to the boat are forthcoming, so AF protection will be at a new starting point.
  17. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Focusing on the design, I did some force calculations just to see if things look reasonable . . . . . I did not take the buoyancy of the extension pod into consideration, just the weight of the engines and pod/bracket. 3K + lbs at the top of the transom seems a bit high, but the design allows...
  18. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    IDK . . . I Googled it a few years ago and that term seemed to come up. It does not seem to mind the AF paint . . . There was a lot of growth this year.
  19. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    late August - September is tough on the boats . . . always has been around these waters. I should plan a mid-season haul-out for a quick power wash and re-paint. The sea moss is a new thing . . . maybe it likes this boat. Never saw it on my previous boats.
  20. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Yes, the past few years has been a lot of sea moss. I use the same AF paint as I always have, but perhaps I need something different.
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