Search found 1503 matches

by kmorin
Tue Mar 24, 2020 2:34 pm
Forum: Alloy Shop Talk
Topic: Welding Aluminum Boats after your 60's
Replies: 10
Views: 3828

Re: Welding Aluminum Boats after your 60's

Update: IF you TIG weld regularly you'll recognize some of my remarks' content more than if you don't weld at all? MIG happens pretty fast, so these remarks would show up there- however the results could be more subtle as the slow motion TIG movements seem to exaggerate these weld puddle indications...
by kmorin
Fri Mar 20, 2020 8:42 pm
Forum: Alloy Shop Talk
Topic: Welding Aluminum Boats after your 60's
Replies: 10
Views: 3828

Re: Welding Aluminum Boats after your 60's

Following my advice column for Senior boat builders, like me- and thank you if you prefer to think of us 'seasoned' boat builders and not Geezer Boatbuilders. A report from my topic of welding for the geezer boat builder begins just before Christmas when I had a very short, but deadly serious discus...
by kmorin
Mon Mar 16, 2020 12:12 pm
Forum: Alloy Boat Forum
Topic: Implications of pitting repair and future prevention
Replies: 10
Views: 1303

Re: Implications of pitting repair and future prevention

Chuck, two old guys can get some work done if they keep at it! We're thinking (not very seriously) about opening a new boat building company- we have a name but our Slogan Says it ALL! "We'll build your boat: If you have TIME!" Geezer Boat Builders. The boat is a type that is used in SCentral AK pri...
by kmorin
Fri Mar 13, 2020 10:23 pm
Forum: Alloy Boat Forum
Topic: Implications of pitting repair and future prevention
Replies: 10
Views: 1303

Re: Implications of pitting repair and future prevention

Chuck, thanks for the post, and memories of 'how you got there' - I'm not sure I can think of many events, looking back, that approach standing on the deck of boat you designed and built, feeling her move under your legs and experiencing the enjoyment of your ideas come to life from your own hands? ...
by kmorin
Wed Mar 11, 2020 8:05 pm
Forum: Alloy Boat Forum
Topic: Implications of pitting repair and future prevention
Replies: 10
Views: 1303

Re: Implications of pitting repair and future prevention

Chuck, I was certain the young, brawny, hoss with the gaff was you! (?) Nice build, you and a former partner built her? I think i vaguely recall something from you guys a few years past? but not very clear in my memory. She looks nice- too many cats don't have enough rake in their bow stems and that...
by kmorin
Wed Mar 11, 2020 2:20 pm
Forum: Alloy Boat Forum
Topic: Implications of pitting repair and future prevention
Replies: 10
Views: 1303

Re: Implications of pitting repair and future prevention

skypoke you're welcome to my list of errors! hard learned lessons indeed- some of them. re: new wiring, I've become convinced that using Starboard- a plastic sheet in about 1/2" thickness as the base for electrical panels is the best practice- bench built distribution boards, with all the relays, te...
by kmorin
Tue Mar 10, 2020 7:48 pm
Forum: Alloy Boat Forum
Topic: Implications of pitting repair and future prevention
Replies: 10
Views: 1303

Re: Implications of pitting repair and future prevention

skypoke, don't see any problems with TIG patches as long as they're coin sized and not palm of hand sized? If larger then some added structural may be needed to keep the hull fair- but no problems from floating out some pits. Drilling out pits is easiest using a small pilot bit say 3/16" to 1/8" dep...
by kmorin
Sun Mar 08, 2020 1:12 am
Forum: Welcome New Members
Topic: New member. Need help on sanding a hull
Replies: 4
Views: 1708

Re: New member. Need help on sanding a hull

Philippe, welcome to the AAB.com Forum and thanks for posting your question. I think the idea behind the concept of beginning with 50 grit was to make the deeper scratches/sanding 'tracks' all become uniform? So that when you moved to a finer grit- the 80 grit would be refining the scratches as they...
by kmorin
Wed Feb 26, 2020 5:18 pm
Forum: Alloy Boat Forum
Topic: Ally boat repairs - am I worrying about nothing?
Replies: 21
Views: 2178

Re: Ally boat repairs - am I worrying about nothing?

Elec, 3mm will weld OK, so patches can be welded in- methods of work, design of the patches and welding access will all play a part in the work- not to mention welder skills! It seems odd that the hull would have the (sectional) shaping in the panels in such tight bends/rolls/deflections and be that...
by kmorin
Sat Feb 22, 2020 6:42 pm
Forum: Alloy Boat Forum
Topic: Ally boat repairs - am I worrying about nothing?
Replies: 21
Views: 2178

Re: Ally boat repairs - am I worrying about nothing?

Elec, what about overlaid patches like those used on aircraft skins? a patch larger than the hole is cut of similar material to the hull's panels and shaped to lay flat on the skin/hull. then using Kleco's and double sided rivets you'd glue on the overlaid patch and then rivet around the patch to gi...
by kmorin
Sat Feb 22, 2020 1:27 pm
Forum: Alloy Boat Forum
Topic: Ally boat repairs - am I worrying about nothing?
Replies: 21
Views: 2178

Re: Ally boat repairs - am I worrying about nothing?

elec, stretch formed and roll formed hull panels are usually rivet in this class of skiff- 'tinny' as you call them. The reason is this method of fastening has not heat distortion/contraction as that's all taken up in the forming of the hull panels. So weld repairs aren't often a realistic repair- t...
by kmorin
Tue Feb 18, 2020 7:51 pm
Forum: Alloy Boat Forum
Topic: Zinc Chromate Primer
Replies: 11
Views: 2475

Re: Zinc Chromate Primer

Mooring, maybe you could read up a bit on the latest methods of galvanic and stray current protection? BoatZincs is a great service and has some reference articles to help get a handle on the entire topic. You hull is 5k (and 6k series extrusions) alloys. The newer aluminum "zincs" or anodes aren't ...
by kmorin
Mon Feb 10, 2020 12:47 pm
Forum: Alloy Boat Forum
Topic: Zinc Chromate Primer
Replies: 11
Views: 2475

Re: Zinc Chromate Primer

Mooring, I hope that Chaps, the AAB.com resident coating expert will post in reply to your question? I think that zinc chromate is mainly considered a 'layering' film and isn't intended for the final out surface? I don't think it will provide much marine growth protection, but since you're trailerin...
by kmorin
Sat Feb 01, 2020 5:23 pm
Forum: Alloy Boat Forum
Topic: Twin engines vs motor plus kicker
Replies: 18
Views: 2991

Re: Twin engines vs motor plus kicker

G&R, ok your experience was what it was. We haven't heard the hours on the units, brand or model but fully accepting that event came off as reported (and I do) what about the 1,000's of trips that day and week where the twins (triples or quads) all performed as advertised and went out a 100 miles, f...
by kmorin
Mon Jan 27, 2020 11:22 pm
Forum: Sittin' on the Dock
Topic: Be careful,
Replies: 1
Views: 844

Re: Be careful,

I saw this video a couple times and don't think the sides are bulged out- at all? I think the explosion lifted the deck and expanded the bottom but the deck to topsides weld didn't release until the topsides at the deck- had pulled in !! So the topsides, don't look to me to have bulged? the tank did...
by kmorin
Thu Jan 23, 2020 2:51 pm
Forum: Alloy Boat Forum
Topic: Adding 5 feet to a Pacific 22...
Replies: 21
Views: 3717

Re: Adding 5 feet to a Pacific 22...

Rob, neat technique! All you do is put the two halves near one another and TaDAHHH... its one boat again?? :beer: Were there any step-by-step photos? We'd sure enjoy learning what you did to join/sister/add-in new longs, resolve the keel, chine and sheer lines back into one skiff!! I was looking for...
by kmorin
Wed Jan 08, 2020 1:36 pm
Forum: Alloy Boat Forum
Topic: Twin engines vs motor plus kicker
Replies: 18
Views: 2991

Re: Twin engines vs motor plus kicker

AM bite, twins offer a smaller torque load on each crankshaft- relative to the entire load being moved. So a little longer service life is gained by twins- due to top speed/displacement loading per engine. Twins offer a natural offset between the two wheels so harbor steering in a breezy afternoon (...
by kmorin
Mon Jan 06, 2020 3:29 pm
Forum: Alloy Boat Forum
Topic: Hull corrosion in bilge area
Replies: 3
Views: 1686

Re: Hull corrosion in bilge area

That is good to know this is not normal and I that I am dealing with something out of the ordinary. I looked all over for more info on this and came across something called poultice corrosion and I was not sure this was the same thing poultice corrosion is usually a form of crevice corrosion where ...
by kmorin
Sun Jan 05, 2020 5:52 pm
Forum: Alloy Boat Forum
Topic: Hull corrosion in bilge area
Replies: 3
Views: 1686

Re: Hull corrosion in bilge area

PNW, I don't believe I've seen that particular corrosion 'growth' or type before- so all I can do is speculate! First, if this is in the battery compartment, perhaps the acid/water/mixture isn't correct and you've been evaporating some higher acid content vapor? (Speculation only) If you're charging...
by kmorin
Sat Jan 04, 2020 1:56 pm
Forum: Alloy Boat Forum
Topic: shore landing and deep V
Replies: 5
Views: 1710

Re: shore landing and deep V

AM bite
that sounds more conventional- not sure of Pacific's deadrise angles but 18 deg sounds like something we've come to expect.

I think you're following a good path to see if you can organize a test ride/drive/outing before making a decision.

Cheers,
Kevin Morin
Kenai, AK
by kmorin
Fri Jan 03, 2020 8:21 pm
Forum: Alloy Boat Forum
Topic: shore landing and deep V
Replies: 5
Views: 1710

Re: shore landing and deep V

AMbite, is that 18" of deadrise or 18 degrees? 18" would be a pretty steep bottom and likely to roll over on one chine and float from keel to chine instead of chine to chine with the keel down? if the builder will help? finding existing boats, or owners who will consider giving you an on the water t...
by kmorin
Fri Jan 03, 2020 4:59 pm
Forum: Alloy Boat Forum
Topic: How to repair areas of corrosion & electrolysis
Replies: 3
Views: 1837

Re: How to repair areas of corrosion & electrolysis

mlt, some remarks in general about the photos in your blo-boat hull. First, since the first few images are kind of dark- I'll be speculating more than replying from a brighter contrast and higher illumination image- so probably need some salt to go with my remarks. The interior surfaces don't look a...
by kmorin
Thu Jan 02, 2020 5:57 pm
Forum: Alloy Boat Forum
Topic: shore landing and deep V
Replies: 5
Views: 1710

Re: shore landing and deep V

AMbite, I think you've hit on a topic that may go around boat owners as long as there are boats! Yes indeed, the trade off of entry vs beach landings!! I'm sure you're aware of a few classic or maybe basic questions involved but for readers' sakes I'll mention them anyway. How steep is the beach? He...
by kmorin
Thu Jan 02, 2020 5:29 pm
Forum: Alloy Boat Forum
Topic: Corrosion on anode
Replies: 9
Views: 2456

Re: Corrosion on anode

I'm not currently conversant with all the many product offerings of anodic materials or finished assemblies so my remarks will probably ignore some or another solution to this problem? There are two general products; one bolted or otherwise mechanically fastened to the hull and the other welded in s...
by kmorin
Thu Dec 19, 2019 9:53 pm
Forum: Alloy Boat Forum
Topic: Corrosion on anode
Replies: 9
Views: 2456

Re: Corrosion on anode

OceanTrvlr, The anode is aluminum (1/2" 6x12 plate I cut in half and drilled for mounting), and I think it's working wonderfully. Is the plate an aluminum anode alloy? Or is it just a piece of 6061 or 50series? Just curious, surface action is odd looking for sure. I think the actual anode alloys are...