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Forum: Health, Safety & Related Gear 10-03-2019, 11:13
Replies: 46
Views: 5,759
Posted By wcapman
Re: A Trick Worth Knowing

This was part of the standard Drown-proofing class that all undergraduates at Ga Tech had to learn. Other parts of the class taught ways to stay afloat by bobbing for many hours while expending very...
Forum: Marine Electronics 03-03-2019, 09:53
Replies: 57
Views: 9,091
Posted By wcapman
Re: What is your favorite radio for Marine SSB and Terrestrial HAM?

Icom 706 MkIIg with KISS counterpoise and ICOM AH4 tuner. Opened up for emergency marine use, but never had to use it. Icom 7200 for home base station. Handy thing about the 706 is that with an...
Forum: Plumbing Systems and Fixtures 25-02-2019, 13:38
Replies: 28
Views: 6,219
Posted By wcapman
Re: Stinky head no more

Hose permeation is an issue for odors. The small gas molecules can eventually pass right on through a hose. A few years ago I wrapped my hoses with heavy aluminum foil HVAC tape. It has a sticky...
Forum: Multihull Sailboats 08-02-2019, 10:28
Replies: 21
Views: 3,266
Posted By wcapman
Re: Semi-flex Solar Panels on a Bimini

I followed the Sailrite installation guide for two 100w panels. They both failed after just a few months of use. Where the panels went over a bent (cross support) it put too much bend in the panel...
Forum: Engines and Propulsion Systems 04-12-2018, 17:04
Replies: 16
Views: 2,051
Posted By wcapman
Re: Hurth Tranny Bad Reverse

I have a Hurth transmission on a Yanmar 2GM20F. This was the original transmission on the boat originally with a 2GM13. I realize this transmission is not recommended for the larger engine, but...
Forum: Construction, Maintenance & Refit 04-12-2018, 15:54
Replies: 65
Views: 6,232
Posted By wcapman
Re: Number of Bottom Paint Coats

I had previously used 2 coats of Petit Trinidad but it was only lasting 2 years and was covered with barnacles on haul-out. Three years ago I was in a boatyard in Mobile. They recommended Sherwin...
Forum: Marine Electronics 21-05-2018, 15:55
Replies: 35
Views: 4,839
Posted By wcapman
Re: SSB noise from solar panels

The problem is NOT RFI interference, so ferrites and shielding will not solve the problem. Your solar controller is a PWM type, even if is is MTTP. What you are hearing are the pulses of the...
Forum: General Sailing Forum 19-01-2018, 21:13
Replies: 68
Views: 8,233
Posted By wcapman
Re: crab traps do you avoid them ?

When you cut a crap trap line, which is usually made of polypropylene, you set float and line adrift. I was running in a marked channel on Mobile Bay 5 years ago and ran afoul of one of these...
Forum: Engines and Propulsion Systems 15-01-2018, 16:18
Replies: 24
Views: 6,613
Posted By wcapman
Re: Yanmar 20GM20 starts but wont run

Over the 35 or more years that I have dealt with the Yanmar 2GM series engines, a situation where the engine starts, fails to come up to power and then dies is usually a partially blocked exhaust...
Forum: Engines and Propulsion Systems 15-01-2018, 10:53
Replies: 24
Views: 6,613
Posted By wcapman
Re: Yanmar 20GM20 starts but wont run

Fuel and Air.
Assuming there is nothing wrong with the fuel supply, look at the exhaust. If the engine runs for 4 or 5 sec and dies, there may be a blockage in the exhaust. As the exhaust tries to...
Forum: Plumbing Systems and Fixtures 16-09-2017, 09:39
Replies: 21
Views: 3,789
Posted By wcapman
Re: getting rid of hard sediment in a black water tank.

I've had luck with 1 cup of gain laundry detergent and 1 cup of Calgon per 10 gals of tank size, diluted with 50% of the tank volume with VERY hot water and then agitated for awhile. I used an...
Forum: Engines and Propulsion Systems 07-09-2017, 11:37
Replies: 29
Views: 6,730
Posted By wcapman
Re: Car alternator OK for my boat?

Just to clarify a few points, a car alternator SHOULD be suitable for a marine diesel, but maybe not a marine gasoline engine.

Most marine alternators are painted to reduce corrosion on the...
Forum: Electrical: Batteries, Generators & Solar 25-08-2017, 09:19
Replies: 99
Views: 24,468
Posted By wcapman
Re: Mounting solar panels on bimini

I did the same thing with a few additions. Between teh panel and the cloth bimini is a thin 1/4" layer of aluminum/vinyl faced bubble type insulation. The aluminum foil side was glued to teh back of...
Forum: Electrical: Batteries, Generators & Solar 03-08-2017, 09:15
Replies: 22
Views: 5,017
Posted By wcapman
Re: Flex Solar Panels turning cloudy

I may have solved the clouding problem. Time will tell. I have 2 rigid 100w panels over my dinghy davit and 2 -100w flex panels over the bimini. In my case I only need the extra power from flex...
Forum: Deck hardware: Rigging, Sails & Hoisting 02-08-2017, 09:03
Replies: 21
Views: 3,238
Posted By wcapman
Re: Lazy Sheet as Barber Hauler?

Yes, I've done this for years, too. But I sail a 35' sloop rigged boat and the lazy sheet leads forward around the stays and mast. So to use it as a barber hauler I pull it in to the traveler...
Forum: Electrical: Batteries, Generators & Solar 30-07-2017, 11:04
Replies: 14
Views: 1,628
Posted By wcapman
Re: Three 6 volt batteries and one 8 volt battery

Just my 2 cents from almost 50 years of batteries and boats. If an 8v was installed with a 6v and paralleled with 2 other 6v batteries, I would insist that they take them all back and replace with a ...
Forum: Construction, Maintenance & Refit 20-07-2017, 09:21
Replies: 30
Views: 9,652
Posted By wcapman
Re: Does Loctite protect against galvanic corrosion?

I have used Never-Seize for decades and never had a galvanic problem. However, do NOT use copper based Never-Seize on aluminum. Use the nickel based stuff made for stainless. It's dark gray. It's...
Forum: Engines and Propulsion Systems 08-07-2017, 17:45
Replies: 64
Views: 7,095
Posted By wcapman
Re: Engine Oil Change Frequency

Just a few thoughts. I have an older 2GM20F and the owners manual suggest an oil change every 100 hours. However...that was when the engine was built...30 years ago. Back then diesel fuel was high...
Forum: Engines and Propulsion Systems 03-07-2017, 14:36
Replies: 27
Views: 4,322
Posted By wcapman
Re: Yanmar 2GMF seized. How to troubleshoot?

The 2GM20F will be an exact drop in for the 2GM13. They were discontinued a long time ago and finding a decent used one is getting harder.
I reused the 2GM13 transmission but had it rebuilt. Kept...
Forum: Engines and Propulsion Systems 03-07-2017, 11:17
Replies: 27
Views: 4,322
Posted By wcapman
Re: Yanmar 2GMF seized. How to troubleshoot?

For what it's worth I had a 2GM seize under similar conditions when I bought my boat back in 1987. The diaphragm for the fuel pump had developed a pinhole leak and allowed diesel into the crank...
Forum: Electrical: Batteries, Generators & Solar 01-07-2017, 21:02
Replies: 59
Views: 5,428
Posted By wcapman
Re: Charging golf cart batteries hooked up in series

I respectfully disagree with connecting all batteries in parallel. I am assuming that you mean both banks of GC2 batteries, that is 2 sets in series and paralleling those two banks. In fact...
Forum: Electrical: Batteries, Generators & Solar 01-07-2017, 19:44
Replies: 59
Views: 5,428
Posted By wcapman
Re: Charging golf cart batteries hooked up in series

My boat runs 2 banks of GC2 Golf Cart batteries. The system includes 2 solar regulators and 15 amps from panels, a 3 step Balmar regulator coupled to a modified Delco 150A alternator, and a Xantax...
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