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Forum: Electrical and Electronics & Navigation Yesterday, 05:48 AM
Replies: 10
Views: 469
Posted By DavidM
I would be a bit surprised if Mercury went to the...

I would be a bit surprised if Mercury went to the effort to electronically regulate their alternator by the engine's ECU, but maybe they did.

The newer auto engines do this. I am a bit frustrated...
Forum: Cruising and Events - East Coast 04-04-2020, 02:25 PM
Replies: 7
Views: 248
Posted By DavidM
I just don't understand federal, state and local...

I just don't understand federal, state and local governments closing campgrounds. When we camp I have a 1 minute interaction with the ranger on duty that I would now do from 6' away. I don't use the...
Forum: Electrical and Electronics & Navigation 04-04-2020, 02:15 PM
Replies: 12
Views: 326
Posted By DavidM
As a last resort, well ok use the inverter to...

As a last resort, well ok use the inverter to convert DC to AC and then through a shore power charger to convert AC to DC to charge the starting battery. But it does sound mickey mouse to me.

A...
Forum: Electrical and Electronics & Navigation 04-04-2020, 10:41 AM
Replies: 12
Views: 326
Posted By DavidM
Well, I have a little different take than my...

Well, I have a little different take than my colleague above. I do like having the output of the high performance alternator connected directly to the main load, the house bank.

The only other...
Forum: Boating Safety and Concerns 04-04-2020, 05:16 AM
Replies: 14
Views: 694
Posted By DavidM
This happened in Maryland waters, right? ...

This happened in Maryland waters, right?

David
Forum: Financial Matters and Red Tape 04-01-2020, 09:56 AM
Replies: 35
Views: 1,258
Posted By DavidM
This is an unfortunates situation, but I think...

This is an unfortunates situation, but I think that the OP bears some responsibility here. Why an $8,000 damage deposit check is beyond me. I guess that charter company has a very high deductible...
Forum: Marlow - Mainship 03-31-2020, 11:08 AM
Replies: 6
Views: 156
Posted By DavidM
Do you have a Cat, a Yanmar or a Cummins engine? ...

Do you have a Cat, a Yanmar or a Cummins engine?

The Cummins 6BTA usually requires lifting the engine off of the engine mount a little to get clearance to remove the pump so you can replace the...
Forum: Other Trawler Systems 03-31-2020, 08:38 AM
Replies: 15
Views: 258
Posted By DavidM
So you have good water flow and the unit worked...

So you have good water flow and the unit worked fine in heat mode. Now that you switched to cooling it trips even with good water flow. Sounds like the reversing valve is not working.

This is the...
Forum: Marinas, Anchorage, Harbors, Slips and Storage 03-30-2020, 02:09 PM
Replies: 3
Views: 201
Posted By DavidM
Bert Jabins is the work yard in Annapolis. The...

Bert Jabins is the work yard in Annapolis. The yard only does haul outs and storage, so you have to contract with any of the dozen or so independent contractors in the yard.

A lower cost and...
Forum: Electrical and Electronics & Navigation 03-26-2020, 05:08 PM
Replies: 17
Views: 385
Posted By DavidM
Realize that all you have to do is find a...

Realize that all you have to do is find a replacement alternator with the same mounting system, the right pulley and offset. I will bet Delco, Leece Neville and of course the Chinese have lots of...
Forum: General Discussion 03-25-2020, 12:46 PM
Replies: 20
Views: 482
Posted By DavidM
I agree with others that a bareboat type of...

I agree with others that a bareboat type of charter isn't going to work for that size boat. I would try to organize the business around an excursion type charter if you can take the time as the...
Forum: General Discussion 03-25-2020, 08:47 AM
Replies: 14
Views: 326
Posted By DavidM
When you give any service company- boat, car,...

When you give any service company- boat, car, outboard, etc a cart blanche authority to "do the annual service" you get this sort of thing, but it does sound exorbitant.

An annual service should...
Forum: General Discussion 03-24-2020, 01:51 PM
Replies: 27
Views: 1,314
Posted By DavidM
Ok,using the web version, I used the distance and...

Ok,using the web version, I used the distance and planning feature to add waypoints. Then when you click on "boat" at the bottom, the weather at each hour of the route shows up. But how do you set...
Forum: General Discussion 03-24-2020, 11:29 AM
Replies: 27
Views: 1,314
Posted By DavidM
You may have to register to access this feature,...

You may have to register to access this feature, assuming it really exists.

Even if it did exist, I don't think I would use it.

I use Windy as a go no go decision tool when I plan an immediate...
Forum: Electrical and Electronics & Navigation 03-24-2020, 09:05 AM
Replies: 17
Views: 385
Posted By DavidM
I think what Fred is saying above is if you...

I think what Fred is saying above is if you modify a small 70A alternator to work with an external regulator it will overheat, bake the windings and/or diodes and fail prematurely.

Although I do...
Forum: Electrical and Electronics & Navigation 03-22-2020, 02:56 PM
Replies: 22
Views: 317
Posted By DavidM
Overgill: Thanks for your kind comments. I and I...

Overgill: Thanks for your kind comments. I and I am sure Ski appreciate it.

Here is the approach I follow when dealing with similar problems:

1. Think through what is going on. If there is...
Forum: Electrical and Electronics & Navigation 03-22-2020, 12:39 PM
Replies: 22
Views: 317
Posted By DavidM
Ok, 400 Ahs of house. Well the first question is...

Ok, 400 Ahs of house. Well the first question is why two banks of house batteries? Best practice is to wire all of your house batteries as one bank.

Secondly that relatively big bank could...
Forum: Electrical and Electronics & Navigation 03-22-2020, 10:03 AM
Replies: 22
Views: 317
Posted By DavidM
Further to Ski's comment above, I am not a fan of...

Further to Ski's comment above, I am not a fan of modifying the OEM alternator to drive it harder to make more amperage. Balmar's alternator temp sensor can help by cutting back output when it gets...
Forum: Electrical and Electronics & Navigation 03-22-2020, 09:29 AM
Replies: 22
Views: 317
Posted By DavidM
I am a little surprised that your OEM Cummins...

I am a little surprised that your OEM Cummins alternator has connections for an external regulator, but if it does the external regulator will make a big difference.

Another thing you can consider...
Forum: Taiwanese Makes 03-21-2020, 05:08 PM
Replies: 35
Views: 1,330
Posted By DavidM
Fuel consumption depends on speed, size and...

Fuel consumption depends on speed, size and weight of the boat, not so much on the engine.

David
Forum: General Discussion 03-21-2020, 01:30 PM
Replies: 41
Views: 1,185
Posted By DavidM
Not sure how you are thinking about using this...

Not sure how you are thinking about using this boat. I believe I would spend 75% of my efforts on making it pretty inside and minimal effort on the mechanicals. Just enough to get the engine running...
Forum: Power Systems 03-20-2020, 08:12 AM
Replies: 98
Views: 2,723
Posted By DavidM
When you are cranking the engine and it doesn't...

When you are cranking the engine and it doesn't start, look at the exhaust. If heavy white smoke comes out, you are getting fuel but the injectors are worn and not atomizing the diesel properly or...
Forum: Marinas, Anchorage, Harbors, Slips and Storage 03-19-2020, 11:47 AM
Replies: 13
Views: 472
Posted By DavidM
I have. never seen a covered freshwater slip in...

I have. never seen a covered freshwater slip in SWFL. The hurricanes probably don't take kindly to the roofs :).

David
Forum: Power Systems 03-18-2020, 09:38 AM
Replies: 16
Views: 436
Posted By DavidM
The Cummins 6BT would be a sweet engine to...

The Cummins 6BT would be a sweet engine to repower with. No problem running at much lower power. The 6BT has no aftercooler so it is simple and easy to maintain.

A factory reman would run in the...
Forum: Marinas, Anchorage, Harbors, Slips and Storage 03-18-2020, 09:27 AM
Replies: 13
Views: 472
Posted By DavidM
I live in Punta Gorda, at least in the winters,...

I live in Punta Gorda, at least in the winters, and there is only one haul out yard- Punta Gorda Marina, located inside the 41 bridge on the Peace River. But access is sometimes limited due to the...
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