Edd,
You should address any slippage regardless of voltage indications. Just replace the belt and adjust correctly. Slippage is never normal. As far as the voltage indications after you have removed any slippage from the equation, a heavy load (such as charging a drained of weak battery) will drop your voltage reading. Unless you have changed the load situation significantly I would check the fluid levels in the batteries if they are not sealed. An old tired battery will draw down the indicated voltage. If you are charging multiple batteries, any single battery can cause this problem. Good luck! Skip C&C 33 ¾ tonner Portsmouth, RI From: CnC-List [mailto:[email protected]] On Behalf Of Edd Schillay via CnC-List Sent: Thursday, July 31, 2014 2:28 PM To: Gary Russell Cc: C&C List Subject: Re: Stus-List Alternator? Belt? Suggestions? Gary, There may be some signs of slippage as I often hear some squealing during the initial startup which lasts until I change the RPMs or after 10-20 seconds. Would slippage cause the voltage to drop or would that only happen temporarily once its going again? All the best, Edd Edd M. Schillay Starship Enterprise C&C 37+ | Sail No: NCC-1701-B City Island, NY Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/> On Jul 31, 2014, at 2:25 PM, Gary Russell <[email protected]> wrote: Hi Ed, Is the belt showing any signs of slippage? Is the inside of the belt shiny? It might be that one of your alternator diodes are gone reducing the output. You can take the alternator to an automotive alternator shop and he can test the diodes or if you have a VOM with a diode test function you can test the diodes yourself. It could also be your regulator, but if you are still charging, that would seem less likely. Gary S/V Expresso C&C 35 Mk II ~~~~~~~_/)~~~~~~ On Thu, Jul 31, 2014 at 2:12 PM, Edd Schillay via CnC-List <[email protected]> wrote: Listers, Lately, when the engine running, Im seeing the voltage reach 13.2 tops when it used to be much higher (13.7 to 14.0). Is this an alternator issue or is it the belt tightness? Any suggestions would be much appreciated. All the best, Edd Edd M. Schillay Starship Enterprise C&C 37+ | Sail No: NCC-1701-B City Island, NY Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/> _______________________________________________ This List is provided by the C&C Photo Album Email address: [email protected] To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
_______________________________________________ This List is provided by the C&C Photo Album Email address: [email protected] To change your list preferences, including unsubscribing -- go bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
