The diodes do stop the battery discharging through the charge side of the alternator. The exciter coils are a different circuit so those diodes don't come into play. Mark Miles
Manager Bar Square 8 Market Place Wokingham Berkshire RG40 1AL 07522 67 60 57 ________________________________ From: edrog <[email protected]> To: Quantum Owners Group <[email protected]> Sent: Thu, 30 June, 2011 9:48:08 Subject: [Quantum Owners] Re: Alternator trouble The alternator diods should stop back flow from the battery On Jun 29, 4:05 pm, Mark Miles <[email protected]> wrote: > 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. > >To post to this group, send email to [email protected] > >To unsubscribe from this group, send email to > >[email protected] > >For more options, visit this group at > >http://groups.google.com/group/quantumowners?hl=en > > >IMPORTANT NOTE: All information presented herewith is provided on an "As >Is" > >basis, without warranty or the implication thereof. 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Neither the Quantum > >Owners Club nor the individuals associated with the Quantum Owners Club > >or >in > >the preparation of the above information shall have any liability to any > >person or entity with respect to liability, loss, or damage caused or >alleged > >to be caused directly or indirectly by the instructions contained within >this > >or related message(s). > > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group >athttp://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As Is" > basis, without warranty or the implication thereof. Neither the Quantum Owners > Club nor the individuals associated with the Quantum Owners Club or in the > preparation of the above information shall have any liability to any person or > entity with respect to liability, loss, or damage caused or alleged to be >caused > directly or indirectly by the instructions contained within this or related > message(s).- Hide quoted text - > > - Show quoted text -- Hide quoted text - > > - Show quoted text - -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s). -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. 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