Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ 19mm master cylinder question

Posted by: whitey May 12 2008, 01:50 AM

My new 19mm MC has only one wire connection for the break light...which of the two wires from my wiring harness do I connect?

Thanks, Dave

Posted by: Dr. Roger May 12 2008, 02:32 AM

on a '74, it's referred to as F6, the brake warning switch wire.

brown with a yellow stripe.

seen here.
http://www.pelicanparts.com/914/parts/Electrical/914_electric_74C.jpg

Posted by: 914Sixer May 12 2008, 06:50 AM

Both wires. You need to take the switch off your old master cylinder. Cars up to 74 have a ballast connected on the hand brake behind the dash. If you need a new one I have 2 left. I believe they are no longer available. $30 shippped Priority Mail.

Posted by: jasons May 12 2008, 09:07 AM

I don't think you necessarily have to use the old switch. The BROWN wire is just a ground lead. The 19mm switch grounds through the M/C to the chassis.

At least thats what I see on the 73 electrical schematic.

Posted by: Dave_Darling May 12 2008, 09:26 AM

Exactly--just plug the brn/yel wire in, and tape the brn wire out of the way.

--DD