Forum: Electrical
03-26-2024, 05:19 PM
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Replies: 7
Views: 281
If you have the old Motorola you will see two...
If you have the old Motorola you will see two wires on the regulator. One goes to coil+. Another will be grounded on the alternator case. There might be another marked "aux". All of these will come...
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Forum: Cooling System
03-26-2024, 03:28 PM
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Replies: 3
Views: 81
Hi Art. It's hard to beat the "old stock"...
Hi Art. It's hard to beat the "old stock" impeller rap since no one is obligated to state date of manufacture on the item (unlike tires). I bought an impeller in Annapolis once that failed within...
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Forum: Electrical
03-26-2024, 03:14 PM
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Replies: 9
Views: 4,155
Regarding your two pictures the following. That...
Regarding your two pictures the following. That terminal block is a lot of unnecessary connections some of which could be introducing resistance. Neil has always advocated keeping connections to a...
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Forum: Electrical
03-26-2024, 02:58 PM
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Replies: 9
Views: 4,155
The short answer is yes. But regarding the...
The short answer is yes. But regarding the ammeter, I would think carefully about this. It depends on how you use the boat. If you just knock around locally day sailing in easy range of a tow or...
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Forum: Electrical
03-26-2024, 10:14 AM
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Replies: 7
Views: 281
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Forum: Electrical
03-25-2024, 09:00 PM
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Replies: 7
Views: 281
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Forum: Cooling System
03-24-2024, 11:49 AM
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Replies: 5
Views: 296
The MMI pumps are bronze or red brass; I'm not...
The MMI pumps are bronze or red brass; I'm not sure. In any case yellow brass is fine in the pumps. The real issue is problems in the expensive castings (head, block, manifold) that are not easy to...
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Forum: Troubleshooting
03-23-2024, 06:25 PM
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Replies: 34
Views: 1,061
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Forum: Cooling System
03-23-2024, 05:22 PM
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Replies: 5
Views: 296
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Forum: Troubleshooting
03-23-2024, 04:45 PM
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Replies: 34
Views: 1,061
An alternator might max out at 17 volts if...
An alternator might max out at 17 volts if unregulated. Your alternator does have a regulator but it might be wired wrong or simply defective. The regulator performs it's duty by supplying amperage...
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Forum: Troubleshooting
03-23-2024, 04:20 PM
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Replies: 34
Views: 1,061
Couple of things. Your alternator clearly has a...
Couple of things. Your alternator clearly has a regulator appended, whether it is being defeated thru improper wiring is another question. Mixing battery types is bad news on a boat - especially if...
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Forum: Introductions
03-22-2024, 05:47 PM
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Replies: 3
Views: 305
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Forum: Troubleshooting
03-22-2024, 05:41 PM
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Replies: 34
Views: 1,061
The wiring looks neat enough though without a...
The wiring looks neat enough though without a diagram it is impossible to know if it is correct. I see the batt isolator - those things make me nervous. I prefer a straight switch out option for...
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Forum: Troubleshooting
03-21-2024, 03:04 PM
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Replies: 34
Views: 1,061
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Forum: Exhaust System
03-21-2024, 01:34 PM
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Replies: 16
Views: 3,161
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Forum: Troubleshooting
03-21-2024, 12:29 PM
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Replies: 34
Views: 1,061
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Forum: Troubleshooting
03-21-2024, 12:28 PM
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Replies: 34
Views: 1,061
What sort of alternator do you have? The old...
What sort of alternator do you have? The old Motorola and Prestolite have "internal" regulators which are actually external appendages. Those regulators can be removed and the field wire fed from an...
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Forum: Troubleshooting
03-21-2024, 11:20 AM
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Replies: 34
Views: 1,061
17 volts is excessive for many things in the...
17 volts is excessive for many things in the system, not just the coil. I would start with a voltage regulator that has a potentiometer so you can adjust the voltage to around 14 volts at alt +. Your...
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Forum: Exhaust System
03-19-2024, 05:09 PM
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Replies: 16
Views: 3,161
As matter of course you should never torque an...
As matter of course you should never torque an attachment to an iron casting with a cap screw which strains the threads inside the casting. Always use studs - and always of the same material as the...
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Forum: Ignition System
03-14-2024, 07:15 PM
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Replies: 11
Views: 627
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Forum: Overhaul
03-11-2024, 09:08 PM
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Replies: 4
Views: 242
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Forum: Overhaul
03-11-2024, 05:45 PM
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Replies: 4
Views: 242
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Forum: Cooling System
03-07-2024, 02:26 PM
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Replies: 4
Views: 403
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Forum: General Interest
02-29-2024, 11:09 AM
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Replies: 16
Views: 319
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Forum: General Interest
02-28-2024, 10:38 PM
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Replies: 22
Views: 658
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