Search found 16 matches

by MacGyver
Fri Jul 14, 2017 12:28 pm
Forum: Welcome New Members
Topic: Floatation Foam in an Aluminum Boat used in Saltwater
Replies: 6
Views: 1267

Re: Floatation Foam in an Aluminum Boat used in Saltwater

The solution is to keep (fresh or salt) water from getting the foam wet. If it is not possible to keep the bulge dry, remove the foam. That is the only long term solution. At the end of the season wash the bulge out using fresh water, and salt-away to remove salt build up, and dry it out before putt...
by MacGyver
Tue Jun 20, 2017 2:08 pm
Forum: Alloy Shop Talk
Topic: Oil as corrosion prevention in bilge?
Replies: 7
Views: 1890

Re: Oil as corrosion prevention in bilge?

When applying any of the anti-corrosion product the metal must be dry and clean of any dirt. Depending on the brand and where it being used it has to be refresh every 6 months to a year. That may not be possible in the bulge. Before using any anti-corrosion product make sure there is NO oil film tha...
by MacGyver
Fri Nov 18, 2016 11:25 am
Forum: Alloy Boat Forum
Topic: Batteries
Replies: 4
Views: 944

Re: Batteries

I would think having 2 AGM batteries would be a good choice in batteries for most boats. With no more information. It not normal for 2-AGM batteries to go bad at the same time. Just to be on the safe side make sure there is nothing draining the batteries and killing them before putting in the new on...
by MacGyver
Fri Sep 16, 2016 1:38 pm
Forum: Alloy Boat Forum
Topic: Kicker motor electrical grounding question?
Replies: 6
Views: 868

Re: Kicker motor electrical grounding question?

Using the silver silver chloride meter you can answer ALL your questions about if the engine needs to be grounded or not in your case.

As far as other metal boats there is no question the engine/s need to be grounded to the hull using a cable as large or larger than the negative battery cable.
by MacGyver
Sat Jun 11, 2016 12:57 pm
Forum: Alloy Boat Forum
Topic: Battery Charger Leak AC
Replies: 9
Views: 1354

Re: Battery Charger Leak AC

I don't think it will help at this time. A galvanic isolator is design to STOP a DC voltage below 1.2v and pass any AC voltage. Your measuring the AC voltage between the hull and the trailer. This may be normal because the trailer could be floating because it not grounded to the hull. Also 0.51v AC ...
by MacGyver
Tue May 17, 2016 12:47 pm
Forum: Alloy Boat Forum
Topic: Battery Charger Leak AC
Replies: 9
Views: 1354

Re: Battery Charger Leak AC

" I own a North River where everything is grounded to a negative bus bar then grounded to the hull. The ground wire is a 10 gauge wire fused to 1 amp" **************** The ground going from the neg bus bar to the hull should be as large as the battery neg cable and DO NOT FUSED IT. The charger shoul...
by MacGyver
Tue May 03, 2016 12:32 pm
Forum: Alloy Boat Forum
Topic: Anodes
Replies: 20
Views: 2196

Re: Anodes

* If I slip the boat in fresh water and have the anodes from the MerCruser dealer on the outdrive I should install the same material anode on the Hull? Yes they must be the same type anodes. As long as the MerCruser dealer is using the proper anodes for fresh water and the hull and prop material. *O...
by MacGyver
Mon May 02, 2016 2:26 pm
Forum: Alloy Boat Forum
Topic: Anodes
Replies: 20
Views: 2196

Re: Anodes

Selecting the best anodes for your boat is not just picking the type of anode you should use. Location of anodes, how long you want them to last, water temperature, is your boat trailer or a slip queen, do you a have any internal or external stray current problems just to name a few possible area th...
by MacGyver
Wed Apr 06, 2016 12:27 pm
Forum: Alloy Boat Forum
Topic: Aluminum Fishbox
Replies: 3
Views: 818

Re: Aluminum Fishbox

After the fish box is built pressure test it, then use a spray can of foam to fill the inside with insulation. Caution use a little at a time to give it time to expand.
by MacGyver
Thu Jan 07, 2016 3:55 pm
Forum: Alloy Boat Forum
Topic: Unintentional Ground Returns to Hull?
Replies: 8
Views: 1069

Re: Unintentional Ground Returns to Hull?

You can't compare a car wiring system to a boat they are two different animals. A boat wired per ABYC or C.G. has four separate grounds, going to a single point, battery negative, AC ground, bonding ground, and lighting ground if needed. For more information on grounding systems look up star grounds...
by MacGyver
Sat Sep 26, 2015 2:31 pm
Forum: Alloy Boat Forum
Topic: Acid Etch with Zep a Lume
Replies: 18
Views: 5279

Re: Acid Etch with Zep a Lume

I have a copy of ABYC Corrosion Certification Study Guide and it makes a referencer to http://www.chlor-rid.com/productInfo/index.php for finding and removing salt on boats before painting.

It might be something that would solve problem before you paint.
by MacGyver
Wed Jul 22, 2015 2:09 pm
Forum: Alloy Boat Forum
Topic: Electrolysis on Pacific Skiff 22 DV
Replies: 13
Views: 2870

Re: Electrolysis on Pacific Skiff 22 DV

More questions than answers. Will corrosion-x attach it self to aluminum if wet? What if you can't get the corrosion-x into all the areas like the inside top of the hull stiffener? If not you will have a false sense of protection. I have read corrosion-x does not dry and remains sticky and need to b...
by MacGyver
Tue May 19, 2015 9:43 pm
Forum: Alloy Boat Forum
Topic: Metal Chassis Equip. grounding?
Replies: 10
Views: 1146

Re: Metal Chassis Equip. grounding?

Many things like stereo head-units, amplifiers, VHF radios, etc. have metal chassis and normal mounting results in electrically using the aluminum hull as a ground return, even if a separate ground wire is run to the battery neg. or to a grounding block. It would seem that the metal hull ground wou...
by MacGyver
Mon Feb 23, 2015 2:32 pm
Forum: Alloy Shop Talk
Topic: 24' DYI alloy remodel
Replies: 504
Views: 34885

Re: 24' DYI alloy remodel

********************* Kmorin wrote: So welding a keyhole (not "keyholing a weld") its good practice with TIG (MIG too) to bevel the sides of the cutout so the arc can be directed to the very bottom surface fusing the weld's first layer there. Then as circle around filling the hole that critical firs...
by MacGyver
Sat Feb 21, 2015 1:32 pm
Forum: Alloy Shop Talk
Topic: 24' DYI alloy remodel
Replies: 504
Views: 34885

Re: 24' DYI alloy remodel

I drills and taps a ½ x 3 x 8 inch aluminum plate to the top of the tank for the air vent, senders, ground and return line plus a spare. .160 seams thin for a boat fuel tank, but that just me. Are you going to presser test the tank before you install it? Have you thought about what you are going to ...
by MacGyver
Fri Jan 30, 2015 8:31 pm
Forum: Alloy Shop Talk
Topic: Bottom Paint on Aluminum Boat
Replies: 29
Views: 3562

Re: Bottom Paint on Aluminum Boat

I did a search, and didn't really get an answer to my question, so here it is. Should I bottom paint my boat, and if so, with what? What are the impacts from bottom paint in regards to performance? My boat is a 2009, and currently is bare aluminum everywhere,including the bottom. I am contemplating...