Re: Wiring alternator on H w/mag

Posted by Bob M on April 11, 2003 at 07:23:42 from (165.170.128.66):

In Reply to: Wiring alternator on H w/mag posted by John on April 11, 2003 at 06:22:54:

John - Probably the simplest approach is to install an oil pressure switch on the engine, then use that to open/close the alternator control circuit. That way your alternator control will be fully automatic. It will also completely independent of the existing magneto control wiring.

Be sure to use a switch with NORMALLY OPEN contacts - i.e. switch contacts close when oil pressure is sensed! (This is opposite the usual car oil pressure switch which open their contacts when pressure is sensed�.) Some 80's era GM (and Chrysler?) cars used oil pressure switches containing two sets of contacts - one each normally open and normally closed. One of those switches would work fine.

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