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  1. M

    Filling holes with Polyester Structural Putty

    I don't see why not. Looking at the data sheet it uses milled fibers for filler. So not much different than if you made PB. IMO, if you have the materials to mix PB, then why buy a another product that's essentially the same (except they don't use cabosil or talc for thickening, just the milled...
  2. M

    Restoring a 1990 Larson

    Yeah, I am going to do that after seeing yours. I don't own a planer, gotta find out which of my friends do. Thanks
  3. M

    Restoring a 1990 Larson

    I found that the factory tach has a switch on the back, so it's now set for an 8 cylinder.
  4. M

    Restoring a 1990 Larson

    Holy Cow, I just realized I never re-calibrated the tach for the V8. So....anyone know how to switch a factory Larson tach from a V6 to a V8 ? No wonder I thought I was out of revs...lol
  5. M

    Restoring a 1990 Larson

    Correction, I wrote the numbers above wrong, the boat was going 42 mph at 4800 rpm. I meant I will comfortably run it to 5,200 on "occasion".
  6. M

    Restoring a 1990 Larson

    SPLASHED !!! Cold and misty today but we've been itching to try this thing out, so off we went to the closest lake. It was "supposed" to be a test. Back it into the water, float it, run it, and check for leaks etc. But everything was working correctly, so we backed it off the trailer and gave...
  7. M

    Restoring a 1990 Larson

    I went back and forth on it, I definitely like the look of it. We'll see how we actually use the boat. At least at this point in time we don't really fish and got the boat to pull the kids around, so obviously daylight hours. If it changes, I can rip it out.
  8. M

    Restoring a 1990 Larson

    Thanks. I tend to go all-in when I tackle a project. LOL. That's code for obsessed, and put more time and money in than it'll ever be worth. Ha HA.
  9. M

    Restoring a 1990 Larson

    Sorry for not many updates, been working non-stop on the boat during all my free time. Also, not much picture-worthy. Cleaning, polishing, painting, and installing all the "little" stuff, cleats, rails, thru hulls, snaps, and stuff like that. Everything that I could I replaced with polished SS...
  10. M

    5.7L Vortec vs Pre-Vortec Height Dimension?

    Edit: Nevermind, I listed wrong years.
  11. M

    1990 18' Bayliner

    Agreed. For me it was that I liked the "look" of the boat I rebuilt (1990 Larson). I did a complete gut and repower. I suspect I'll have around 9K or so in mine when done, but I know it will last many years. I looked at many slightly newer boats in the 10-12K price range and I suspect many of...
  12. M

    Restoring a 1990 Larson

    It Runs !! Getting excited now. Ran it for about 20 minutes on the muffs, set the timing and idle. Ran about 160 degrees.
  13. M

    Restoring a 1990 Larson

    Got the wiring straightened out, at least where I'm happy with it. The wiring in this vintage of boat is crap to put it bluntly. I sure hope newer boats have gotten better. Anyway, I added some ground and power busses, some additional sleeving, and loom clamps. The new blower, bilge (added one...
  14. M

    Gelcoat question(s)

    I can't help you with the subsequent coats question, although I too would like to know. I got unwaxed and did several coats and added wax in the top coat only as I was worried about adhesion to the earlier coats. As far as you second question, the wax goes to the surface as it doesn't "mix"...
  15. M

    Restoring a 1990 Larson

    Here is a link to the page with the SS adhesive studs, many different sizes and lengths. https://www.mcmaster.com/threaded-rods/stainless-steel-adhesive-mount-studs/
  16. M

    Restoring a 1990 Larson

    Lots of work done this week. Been working on wiring, installing components, and cleaning / painting old parts going on. I am trying not to put any screws through the finished deck, or as few as possible anyway. I found these neat glue studs from McMaster-Carr. They are 316 S/S and I adhered them...
  17. M

    Mercruiser 4.3L serp belt cross reference

    Personally, I would just go with the K060763 . I don't know anything about static and marine vs automotive belts. Never heard of that.....doesn't mean much I'm new to working on boats. I replied as I've learned how to read belt numbers from many years of building custom cars etc and needed to...
  18. M

    Mercruiser 4.3L serp belt cross reference

    "6" is number of ribs, the "PK" designation is the Automotive style, metric (worldwide) measurement in mm for length. So, your belt (6PK1938) is a 6-rib(6) Metric / automotive (PK) 1938 mm long. So the "American" interchange would be a K060763 in a gates belt. "K" (automotive style) "06"...
  19. M

    Stringer Design Question

    Another alternative from using any spacers is to make a quick jig to hold the stringers in position while bedding. See my post here >> https://forums.iboats.com/threads/restoring-a-1990-larson.741569/page-2#post-5640304 I made jigs to hold and support all the bulkheads and stringers in the...
  20. M

    Restoring a 1990 Larson

    Milestone time ! The cap is back on, we have a one-piece boat again, lol. Tons of other work done this week, not much picture worthy. Engine is basically ready to run, all new hoses etc installed. Set up the fuel system, just have to wire everything. Sanded and buffed the bow section, looks...
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