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16-06-18, 12:05 PM | #11 |
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Location: St Albans
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Re: Alternator/reg/rec question ...
I did have a look at it, and there are SAE connectors with AWG 12 wires which may do it, and there are US sites with AWG 10 wired connectors which should definitely work, but I never managed to find an answer about what the connector is rated at ... but this is really just idle curiosity as I'm not going down that road.
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16-06-18, 12:13 PM | #12 | |
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Re: Alternator/reg/rec question ...
Quote:
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17-06-18, 02:50 PM | #13 |
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Re: Alternator/reg/rec question ...
So, I've had a look at as much as I can - the generator looks fine (resistance within normal range, output on all three pairs rising from ~25V to ~90V going from idle to 5k RPM). All contacts clean and corrosion-free.
With the engine started and idling, the R/R was generating 14.1V. At 5k RPM it was 13.7V, with the headlight on at 5k it drops to 13.3V. For some reason I didn't write down the voltage idling with the lights on. But, the voltage drop without the lights on would explain why the lights are dimming. At the end of the day, 13.3V means it would still be charging the battery to some degree. So, my conclusion is that my battery isn't holding its charge as well as it did when new, and I probably need a new one at some point. That said, I'm still a little concerned about the R/R voltage drop as the engine revs. Either the R/R is having trouble, or there's something drawing a lot of power when I rev. Anyway, thanks for all your help! |
17-06-18, 03:19 PM | #14 |
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Re: Alternator/reg/rec question ...
I would start by checking all the connections from alternator to battery and battery to earths.Then borrow a known good fully charged battery and check those charging numbers again. You might find it all checks out with just that.
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17-06-18, 05:24 PM | #15 |
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Re: Alternator/reg/rec question ...
If your RR is worrying you have a search on here or in the manual and it shows how to check its diodes. This wont completely discount it as a problem (unfortunately theres no easy way to check the internal voltage regulator part) but at least reduces the possibilities....
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17-06-18, 09:39 PM | #16 | |
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Re: Alternator/reg/rec question ...
Quote:
Proper Sealed Gel or AGM batteries come"Sealed"maintenance free and fully charged and are,"Fire-And-Forget".
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"Stultus est sicut stultus facit" Last edited by R1ffR4ff; 17-06-18 at 09:51 PM. |
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17-06-18, 10:52 PM | #17 | |
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Re: Alternator/reg/rec question ...
Quote:
dont but cheep battery's, its false economy. |
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18-06-18, 05:28 PM | #18 |
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Join Date: May 2016
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Re: Alternator/reg/rec question ...
Thanks - the resistance from r/r to the battery was 0.2 and 0.4 ohms, which doesn't look too high to me. I'll hold off and buy a decent battery when I can afford one!
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