Agreed, i wouldn't leave it permanently connected. It would be better to connect it to an ignition circuit if you have to.
I've always found that even without the warning light connected there is enough residual magnetism in the alternator for it to self excite about about 3000rpm and then work fine after that. My 2+2 does that because i changed the warning light to an LED but it's not really a problem. Maybe not the case on a brand new alternator though. Jim From: Mark Miles Sent: Wednesday, June 29, 2011 4:05 PM To: [email protected] Subject: Re: [Quantum Owners] Re: Alternator trouble Good point.. I would still use caution. Also leaving it connected when the alternator is not turning causes the coils to heat up as well as being a constant drain on the battery. On a new alternator the heating is unlikely to do any damage but on a well used one it could accelerate failure. Mark Miles Manager Bar Square 8 Market Place Wokingham Berkshire RG40 1AL 07522 67 60 57 ------------------------------------------------------------------------------ From: Jim Hearne <[email protected]> To: [email protected] Sent: Wed, 29 June, 2011 15:40:12 Subject: Re: [Quantum Owners] Re: Alternator trouble I was worried about that as well initially. But, the alternator must be outputting the battery voltage on that pin when it's running to put the alternator warning light out. There can't be any volts dropped across the bulb or the bulb would glow. Jim From: Mark Miles Sent: Wednesday, June 29, 2011 3:34 PM To: [email protected] Subject: Re: [Quantum Owners] Re: Alternator trouble I would be a little concerned at connecting the alternator to the +side of the battery. The seed current for the alternator starts as 12v BUT the bulb acts as a resistor which drops the voltage to a much lower value. My concern would be damaging the exciter coils in the alternator. Mark Miles Manager Bar Square 8 Market Place Wokingham Berkshire RG40 1AL 07522 67 60 57 ---------------------------------------------------------------------------- From: barnacle <[email protected]> To: Quantum Owners Group <[email protected]> Sent: Wed, 29 June, 2011 8:30:43 Subject: [Quantum Owners] Re: Alternator trouble Bit of a giveaway, that... Apropos of which: a common complaint on our Fiat forum: "I've replaced the dash lights with LEDs and now it won't charge..." Neil On Jun 28, 10:17 pm, Jim Hearne <[email protected]> wrote: > He did say the wire wasn't connected....... > > Jim -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. 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