| Re: [GMCnet] [GMCMH-EFI] speaking of alternators... [message #322179 is a reply to message #322171] |
Wed, 16 August 2017 00:04  |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
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The OEM wiring which is 10 ga is a little wimpy to pull 80 amps through. Any voltage loss in that short wire is made up by the remote sensing in the alternator so that is not an issue but getting warm might be. I left my 10 ga. wire installed and added a 8 gauge wire in parallel. I chose that wire because it was free. It came off of a spool of high temperature furnace wire used in the local steel mills.
On GMCs with rear mounted house batteries, there is a 50 or 60 amp CB inline so it is impossible for the house battery system to draw anything higher than 50 or 60 amps off of the alternator. I do not believe there is a CB inline on front battery coaches. I'll have to go pull a wiring diagram on one to see for sure.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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