Nipple on Master Cyclinder? where to?
 

Whats the middle nipple go to? lol I know stupid question but all I can assume is it's a vacum line? But where to?

Re: Nipple on Master Cyclinder? where to?
 

To the left on the bottom I know another line goes in. But the middle nipple hanging out? Vacum?

Re: Nipple on Master Cyclinder? where to?
 

Single wire to a dash lamp when the prop slides to one side or the other in the case of a brake failure

Look for a single black wire dangling under the booster somewhere

Re: Nipple on Master Cyclinder? where to?
 

Yep. That's actually the switch in the proportioning valve, plumbed to the master cylinder and then to the brakes.

Re: Nipple on Master Cyclinder? where to?
 

Low pressure switch, which is normally open. When the shuttle valve moves due to drop in pressure the valve moves completing ground circuit and the dash light goes on.

Re: Nipple on Master Cyclinder? where to?
 

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Should be a brown electrical wire with a rubber boot on it that plugs into it. It goes to the brake warning light in the instrument panel...

LockDoc

Re: Nipple on Master Cyclinder? where to?
 

oh Awesome!! Thanks so much!! I'll see what I can do tomorrow finding that wire! I'm pretty sure its still there though! Awesome! Speaking of which this weekend is wiring time! Hopefully will have it turning over and rolling on the 20's!