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Date:         Fri, 11 Apr 2008 11:42:52 -0700
Reply-To:     neil N <musomuso@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         neil N <musomuso@GMAIL.COM>
Subject:      Re: Wire gauge: smaller to larger ok?
Comments: To: Mike S <mikes@flatsurface.com>
In-Reply-To:  <20080411182704.05F631165C3@hamburg.alientech.net>
Content-Type: text/plain; charset=ISO-8859-1

Hey neat.

You would have thought I'd think "relays" after having just finished wiring up the 3 for the Jetta engine.

Thanks!

A very simple solution.

Just couldn't bear the thought of using the wrong size wire.

Appreciate the help!

Neil.

On Fri, Apr 11, 2008 at 11:27 AM, Mike S <mikes@flatsurface.com> wrote: > At 01:16 PM 4/11/2008, neil N wrote... > > > > Hi all. > > > > Vanagon Bentley (1981) shows a #16 wire from "15" on ignition switch > > to the coil. > > > > Jetta Bentley shows a #12 wire going to coil. > > > > Is it a bad idea (potentially too much load for gauge) to connect > > existing #16 wire in engine bay, to the "Jetta" #12 wire to Jetta > > coil? > > > > Maybe, who knows the specs for a Jetta coil? #16 wire is rated for 3.7 > Amps, #12 wire for 9.3 A. > > What I would do is get a standard Bosch type relay and use the #16 wire to > control the relay, you can then use a #12 wire from the battery connection > on the starter to the relay to the Jetta coil. That will also take a lot of > load off of your ignition switch. > > Relay terminal > 86 to ground > 85 to #16 wire > 87 to battery connection on starter via #12 wire (best with an inline 8A > fuse near the starter) > 30 to Jetta coil via #12 wire > > Here's info on Bosch relays (about the middle of the page) > http://www.bcae1.com/relays.htm >


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