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Forum: Electrical: Batteries, Generators & Solar 10-07-2023, 10:20
Replies: 39
Views: 3,261
Posted By EngNate
Re: Flyback diodes on boats

1. The flyback peak current will be equal to the current flowing in the coil when it is switched off. Your suppression diode should have a peak forward current rating (IFpk) of twice this value. A...
Forum: Construction, Maintenance & Refit 30-04-2023, 08:48
Replies: 58
Views: 3,904
Posted By EngNate
Re: US source for 316 stainless screws, etc? Especially metric

There was an outfit in Baltimore, Maryland Metrics, but their webpage seems to have moved. Try their phone# 410-358-3130
Forum: Flotsam & Sailing Miscellany 19-06-2022, 12:06
Replies: 78
Views: 7,790
Posted By EngNate
Re: Help with a fiction novel

Just for you-never-know-what, you might follow the R2AK, a power-less race up the inside passage to Alaska. It is going on now.
Forum: Engines and Propulsion Systems 13-06-2022, 16:32
Replies: 37
Views: 4,002
Posted By EngNate
Re: Old engine: 30 weight or 40?

I'd go with 15W40. Rotella T3 is my brand. And a rule of thumb for minimum acceptable pressure of 10psi per 1000 rpm. And the detergent thing - Don't switch to detergent oil with an engine that's...
Forum: Flotsam & Sailing Miscellany 13-06-2022, 14:36
Replies: 78
Views: 7,790
Posted By EngNate
Re: Help with a fiction novel

The inside passage is pretty benign compared to the big ocean but it still gets nasty at times and places - the Georgia Strait, Queen Charlotte Sound, Dixon Entrance, they'll have to cross those. ...
Forum: Electrical: Batteries, Generators & Solar 27-05-2022, 14:34
Replies: 35
Views: 5,053
Posted By EngNate
Re: Diode for Anchor/Steaming Light???

What you want is an industry standard part# 1N5400. Unfortunately, local electronics stores are about extinct, and shipping is going to be 10X the part price, which is well under $1. I suggest...
Forum: Engines and Propulsion Systems 23-05-2022, 12:23
Replies: 27
Views: 2,435
Posted By EngNate
Re: Wit's end with my outboard part 2

I have a 4 that had the same sort of issue, couldn't get fuel into the carb, at first only when the tank got low (using internal tank). It turned out to be the fuel pump. If it isn't working...
Forum: Monohull Sailboats 03-12-2021, 21:13
Replies: 35
Views: 6,318
Posted By EngNate
Re: What temp is really "freezing" on the water?

I live aboard so the interior is always warm, but there is the fresh water tanks, pump and plumbing in the unheated engine compartment (power boat). The surface water does freeze in the harbor here,...
Forum: Plumbing Systems and Fixtures 22-10-2021, 21:21
Replies: 43
Views: 5,954
Posted By EngNate
Re: Testing a watermaker in a river

Do not exceed rated product flow. In lower salinity, especially fresh water, you will need to reduce the pressure.
Forum: Construction, Maintenance & Refit 23-08-2021, 21:43
Replies: 86
Views: 8,306
Posted By EngNate
Re: how to test a chinese part versus name brand

Well, I'll tell of one comparison I saw firsthand, albeit a little one sided. A brand new, sunk total loss boat raised with a beautifully polished stainless steel anchor shank, shank only, hanging...
Forum: Electrical: Batteries, Generators & Solar 23-08-2021, 20:20
Replies: 111
Views: 15,199
Posted By EngNate
Re: shore cable sockets burned, what should I do?

I'll submit my 2c, I have a lot of experience with these, including repair of a boat that had a fire because of one (about $35K total damage, 6K to electrical system).

The ends the OP pictured...
Forum: Construction, Maintenance & Refit 14-08-2021, 20:43
Replies: 33
Views: 5,388
Posted By EngNate
Re: Electrochemical damage to wooden boats. It's a thing

Wow... It is the buildup of Sodium Hydroxide that causes delignification of wood around metal fittings. There are two root causes: Stray current corrosion and over protection. NaOH is a...
Forum: General Sailing Forum 27-07-2021, 21:26
Replies: 93
Views: 17,413
Posted By EngNate
Re: Cruiser Dating?

+1. I think that's a good idea. It doesn't make CF a dating site.. it's optional. And PM's make it between those two people, who if they've opted to have the icon, must be somewhat interested. ...
Forum: Crew Positions: Wanted & Available 19-07-2021, 08:25
Replies: 85
Views: 8,637
Posted By EngNate
Re: Captain or Boat Wanted: Vietnam or Mexico to Cairns Australia

Good Chuckle.... Independent thought ... independent of reality, that is... seems to be a lot of that going around.

Anybody tell me what harm or detriment could come as a result of a PCR test? I...
Forum: Plumbing Systems and Fixtures 02-06-2021, 21:38
Replies: 140
Views: 11,551
Posted By EngNate
Re: Fridge that uses little, if any, of your battery!

Panasonic U-Vacua Panels (https://www.digikey.ca/en/product-highlight/p/panasonic-ind-devices-fbd/u-vacua-series-vacuum-insulation-panels)

About 9 times the R of urethane foam
Forum: Dollars & Cents 24-05-2021, 08:52
Replies: 118
Views: 20,816
Posted By EngNate
Re: Insurance challenges - Canada

My boat is 47 years old and insured with Beacon. When I took it over from my ex the rate went up because of new policy, higher valuation, and she had Power Squadron and I don't - I just have a 500T...
Forum: Our Community 14-05-2021, 16:14
Replies: 60
Views: 8,104
Posted By EngNate
Re: How to give away a boat?

Huh? Somebody understands what a free boat is and takes it anyway - let alone assume legal title, good luck on that. If you want to give away a boat you will have to compromise your morals.
Forum: Electrical: Batteries, Generators & Solar 11-05-2021, 23:33
Replies: 224
Views: 28,439
Posted By EngNate
Re: Marine AC - Why Tie Neutral and Earth?

Well, correct that if there is a leakage current it will trip. But unless there is already a ground fault from another phase there will be no leakage current to sense and the device will not trip. ...
Forum: Electrical: Batteries, Generators & Solar 11-05-2021, 22:47
Replies: 224
Views: 28,439
Posted By EngNate
Re: Marine AC - Why Tie Neutral and Earth?

Floating ground means that there is no connection to any normally current-carrying conductor. That means that in a fault condition the grounding conductor can be driven to the full line potential. ...
Forum: Electrical: Batteries, Generators & Solar 11-05-2021, 20:10
Replies: 224
Views: 28,439
Posted By EngNate
Re: Marine AC - Why Tie Neutral and Earth?

Where is this going now? I want to go back to post 1, after I say that I shake my head, roll my eyes in some cases, at much of what I read here, but at least for now I won't sort through it.
...
Forum: Construction, Maintenance & Refit 10-05-2021, 10:02
Replies: 34
Views: 7,350
Posted By EngNate
Re: Marine growth on zincs

When a zinc anode is "burning" it produces zinc oxide on its surface which inhibits marine growth. Growth on an anode indicates it is not burning as it should, and this situation is caused by...
Forum: Weather | Gear, Reports and Resources 08-05-2021, 19:34
Replies: 47
Views: 5,098
Posted By EngNate
Re: Looking for an Explanation

Anyone ask to be sure the time zone is set correctly? If local date and time is correctly displayed then it has to be an error in the unit's tidal harmonics data, and Garmin probably has it covered...
Forum: General Sailing Forum 08-05-2021, 18:31
Replies: 46
Views: 4,964
Posted By EngNate
Re: How to acquire maintenance skills and knowledge.

Hmmm, seems like me asking, "I'm 62 and been fixing boats all my life, now how do I acquire the money to retire?" In both our cases, we'll have to just do it and figure it out...
Forum: Challenges 04-05-2021, 09:25
Replies: 56
Views: 9,720
Posted By EngNate
Re: Removed check valve from bilge pump- now it won't stop running

Here is a solution for flowback in small, deep bilges. Two float switches, a relay and a diode are wired so that the pump is turned on by the high switch and turned off by the low switch. Then you...
Forum: Propellers & Drive Systems 14-04-2021, 22:10
Replies: 42
Views: 6,346
Posted By EngNate
Re: Aluminum anodes not preventing corrosion

A test for zinc oxide: Collect some of the powder in a spoon and cook it with a propane torch. ZnO will turn yellow when hot and back to white when it cools.
Showing results 1 to 25 of 254

 
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