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#1
posted to rec.boats
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Low Voltage Problem on 350 Mag Mercruiser
Hi all, glad I found this forum. As many of you know, "a boat nothing more
than a hole in which money is poured" Hopefully, you guys may provide insight on my latest problem: My 22' SeaRay Pachanga is suffering a loss in voltage. My alternator checks out ok at 14-19 volts at 1500rpm. I replaced one of my deep cycle batteries with a new starter type and charged up the other deep-cycle. Cleaned & inspected all cables and wires. Replaced the Ignition switch. Yesterday, the volt meter did show 14 volts briefly while I was cruising. But, could not keep above 12 volts consistently. When running low, my multimeter reading on the starter solenoid is the same as the battery 12.43 volts. Shouldn't it be the same as what's coming out of the alternator? Does anyone have any other suggestions of things to check? -- Lakerdave Message posted via BoatKB.com http://www.boatkb.com/Uwe/Forums.aspx/boats/200608/1 |
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#2
posted to rec.boats
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Low Voltage Problem on 350 Mag Mercruiser
There is a fuse between the starter and alternator.
Jim "lakerdave via BoatKB.com" u25383@uwe wrote in message news:64f768a83ea95@uwe... Hi all, glad I found this forum. As many of you know, "a boat nothing more than a hole in which money is poured" Hopefully, you guys may provide insight on my latest problem: My 22' SeaRay Pachanga is suffering a loss in voltage. My alternator checks out ok at 14-19 volts at 1500rpm. I replaced one of my deep cycle batteries with a new starter type and charged up the other deep-cycle. Cleaned & inspected all cables and wires. Replaced the Ignition switch. Yesterday, the volt meter did show 14 volts briefly while I was cruising. But, could not keep above 12 volts consistently. When running low, my multimeter reading on the starter solenoid is the same as the battery 12.43 volts. Shouldn't it be the same as what's coming out of the alternator? Does anyone have any other suggestions of things to check? -- Lakerdave Message posted via BoatKB.com http://www.boatkb.com/Uwe/Forums.aspx/boats/200608/1 |
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#3
posted to rec.boats
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Low Voltage Problem on 350 Mag Mercruiser
It's common on boats for resistance to develop over time in the various
connections and terminals. These show up as lower voltage in various places depending on the load. At one point I was only getting 8 volts at my ignition module. A good cleaning with a wire brush helps a lot. "lakerdave via BoatKB.com" u25383@uwe wrote in message news:64f768a83ea95@uwe... Hi all, glad I found this forum. As many of you know, "a boat nothing more than a hole in which money is poured" Hopefully, you guys may provide insight on my latest problem: My 22' SeaRay Pachanga is suffering a loss in voltage. My alternator checks out ok at 14-19 volts at 1500rpm. I replaced one of my deep cycle batteries with a new starter type and charged up the other deep-cycle. Cleaned & inspected all cables and wires. Replaced the Ignition switch. Yesterday, the volt meter did show 14 volts briefly while I was cruising. But, could not keep above 12 volts consistently. When running low, my multimeter reading on the starter solenoid is the same as the battery 12.43 volts. Shouldn't it be the same as what's coming out of the alternator? Does anyone have any other suggestions of things to check? -- Lakerdave Message posted via BoatKB.com http://www.boatkb.com/Uwe/Forums.aspx/boats/200608/1 |
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#4
posted to rec.boats
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Low Voltage Problem on 350 Mag Mercruiser
Test at the alternator output terminal, not the starter solenoid, when
the voltmeter reads low. Report back. JR lakerdave via BoatKB.com wrote: Hi all, glad I found this forum. As many of you know, "a boat nothing more than a hole in which money is poured" Hopefully, you guys may provide insight on my latest problem: My 22' SeaRay Pachanga is suffering a loss in voltage. My alternator checks out ok at 14-19 volts at 1500rpm. I replaced one of my deep cycle batteries with a new starter type and charged up the other deep-cycle. Cleaned & inspected all cables and wires. Replaced the Ignition switch. Yesterday, the volt meter did show 14 volts briefly while I was cruising. But, could not keep above 12 volts consistently. When running low, my multimeter reading on the starter solenoid is the same as the battery 12.43 volts. Shouldn't it be the same as what's coming out of the alternator? Does anyone have any other suggestions of things to check? -- -------------------------------------------------------------- Home Page: http://www.seanet.com/~jasonrnorth |
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#5
posted to rec.boats
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Low Voltage Problem on 350 Mag Mercruiser
The alternator check out at over 14 volts. I also had napa double check it
for me. I replaced the battery to rule that out. As well as the ignition switch. Voltage did jump back to normal the other day while cruising. But, dropped below 12 on the dash later on. There must be a loose wire or short somewhere. I placed a call to my mobile marine mechanic. Time for an expert.... JR North wrote: Test at the alternator output terminal, not the starter solenoid, when the voltmeter reads low. Report back. JR Hi all, glad I found this forum. As many of you know, "a boat nothing more than a hole in which money is poured" Hopefully, you guys may provide [quoted text clipped - 9 lines] battery 12.43 volts. Shouldn't it be the same as what's coming out of the alternator? Does anyone have any other suggestions of things to check? -- Lakerdave Message posted via http://www.boatkb.com |
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