Also, you will notice that your batteries will discharge much faster than normal when used sail if it is the blocking diodes that have failed as the alternator will become a very large drain.
Jack Fitzgerald C&C 39 TM Savannah, GA On Fri, Aug 15, 2014 at 8:36 AM, Burt Stratton via CnC-List < cnc-list@cnc-list.com> wrote: > Simple answer: > > > > Most do have internal diodes. To be sure you can google the part number of > the alternator or look it up on the manufacturers web site. > > > > You should see around 13.5 to 14 ish volts across your starting battery > terminals when running. It will vary a little depending on the condition of > the battery. If you have an ammeter you should see it move to the plus side > of zero after starting. If you see 12 or less volts across your starting > battery terminals when running or negative amps when running you have a > problem with the alternator which could be the voltage regulator or diodes > (assuming the belt is not slipping). > > > > Skip > > > > *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of * > wwadjo...@aol.com via CnC-List > *Sent:* Friday, August 15, 2014 8:21 AM > *To:* Brad Crawford via CnC-List > *Subject:* Re: Stus-List blown alternator diode > > > > The thread on alternators got me to ask myself, "how do you known if you > have an internal diode on alternator, and how do you know if "blown?" > > I am, electrically challenged, admittedly. > > Bill Walker > > CnC 36 > > > > > > Sent from my HTC > > > > _______________________________________________ > This List is provided by the C&C Photo Album > > Email address: > CnC-List@cnc-list.com > To change your list preferences, including unsubscribing -- go bottom of > page at: > http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com > > >
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