MoparFins

Techical Discussions => General Tech- - BRAKES => Topic started by: Rob Molloy on July 19, 2011, 08:26:35 AM

Title: Brake light switch
Post by: Rob Molloy on July 19, 2011, 08:26:35 AM
Wasn't sure which section this should go in, since it's kind of a grey area. Got a new brake light switch for the Toga, but for the life of me, don't know where it goes...should have looked into that before hand huh? I've looked, and don't see anything that looks similar to this. Can someone help me out? Give me an area to focus my search, possibly a picture? Thanks!!!
Title: Brake light switch
Post by: Guests on July 19, 2011, 08:36:36 AM
If there looks to be fluid that goes to it, look at the brake lines themselves, otherwise, if it is a switch, try the brake pedal area under the dash below the steering column. I think it is the latter.
Title: Brake light switch
Post by: Steve on July 19, 2011, 12:28:46 PM


It's screwed into the master on the bottom.  2 wires
Title: Brake light switch
Post by: Rob Molloy on July 19, 2011, 12:41:12 PM
OK. That's why the brake lights stopped working after the master cylinder changed...need to get something else then because now I have the master cylinder from a 76 dodge dart...LOL
Title: Brake light switch
Post by: Steve on July 19, 2011, 12:47:29 PM


If the end is flat. . .  I mean there is a round dog on the front end of the master, or sometimes on the bottom, you can drill and tap an 1/8" thread and just put a switch in.  That's what I did
Title: Brake light switch
Post by: Guests on July 19, 2011, 12:54:48 PM
In stead of drilling and tapping, follow the line down to the distribution block and put a T in the line so as not to be drilling into a master cylinder. It is similar to what Ford did for years, they just had the problem of installing them in a location where oil would get all over them and they wouldn't work. Heck, you could put it where the brake line goes to the front wheel, all it requires is line pressure to it if that is what Steve is talking about. Make it simple and make it safe. I would not do it directly off the master cylinder just because fluid is all over the place and may malfunction with fluid (a good insulator if it drenches the connections, which was Ford's problem). I'm sure the single master cylinders were a little different than the dual cylinders.
 
dana442011-07-19 17:59:36
Title: Brake light switch
Post by: Steve on July 19, 2011, 01:28:39 PM


That works too
Title: Brake light switch
Post by: Rob Molloy on July 21, 2011, 06:16:26 AM
Quote from: dana44
Here is a second solution. Mid 60s Mopars used a simple electric switch that is located on the brake pedal itself. Pedal touches it and it goes off, pedal pushed and it comes on. No fluid to worry about, a little bracket to hold it in place. Talk about even less pain. I think I could get a scan of the wiring from a switch to the switch from my 68 Charger to wire it, but it should simply be the two wires (or one power wire, not sure, body may be ground), to hook it up.
<-----I think I will be doing this one! LOL. Thanks for the help guys!
Title: Brake light switch
Post by: Steve on July 21, 2011, 06:36:34 AM


I had one.
Title: Brake light switch
Post by: Guests on July 21, 2011, 01:27:33 PM
There is no point on the brake pedal that moves? It is a switch release, so from off position the switch button is pushed in, press the brake pedal and the swich opens, just like a dome light switch and the lights come on.
Title: Brake light switch
Post by: Steve on July 21, 2011, 01:50:32 PM


They make short brakes lines with the master fittings on them too.
Title: Brake light switch
Post by: Guests on July 21, 2011, 02:27:35 PM
OK, I think I actually know what you are talking about, so, how about using a 60s Ford type that goes in the line instead of tapping the master cylinder? Probably easier to add it into the brake line for the front brakes, just disconnect a line, put it in and be done with it. Might take a little plumbing to get it in there, not sure if the Ford had a simple line connector or what, I just remember our 67 Ford truck getting oil on it and I had to clean it a time or two, but that was just one of those Ford things, not smart enough back then to relocate the switch to keep it clean of oil.
Title: Brake light switch
Post by: Steve on July 21, 2011, 04:57:13 PM
Yeah  That's what I was referring to with the lines.  He can buy short pieces, a Tee and out it all together and just rebleed.  I think the fear is drilling and tapping the master.  I sometimes forget I do things different and can do things most can't.  No knocking anyone, I've been doing this for years and have had to do that exact samr thing before.
 
I had a 57 and a 55 plymouth I had to keep together with a shoe string budget.
 
If you haven't the tools and skills, the in line is the way to go
Title: Brake light switch
Post by: Rob Molloy on September 25, 2011, 07:03:56 AM

Quote from: POLARACO
Yeah  That's what I was referring to with the lines.  He can buy short pieces, a Tee and out it all together and just rebleed.  I think the fear is drilling and tapping the master.  I sometimes forget I do things different and can do things most can't.  No knocking anyone, I've been doing this for years and have had to do that exact samr thing before.
 
I had a 57 and a 55 plymouth I had to keep together with a shoe string budget.
 

<-----This is what I had done. I know, it took a while, but found out that we have another kid on the way, so I'm having to watch the funding a little more. Have to pump the brakes a few times for enough pressure to turn on the switch, and the brakes are a bit spongy. The shop tried just bleeding the portion they worked on, but that didn't work too well. It's going back in Wednesday for a FULL bleed. Hope that works :D
Title: Brake light switch
Post by: Steve on September 25, 2011, 02:54:50 PM


Crack the break line at the T and let it gravity bleed.  Hopefully what ever air that got into the system may float back up and come out
Title: Brake light switch
Post by: Rob Molloy on September 25, 2011, 03:06:22 PM
I'll give it a shot. They're not going to charge me for a full bleed, so I figure I'll let them do it :D
Title: Brake light switch
Post by: Steve on September 25, 2011, 03:43:32 PM


If nothing else, you just learned a trick
Title: Brake light switch
Post by: Rob Molloy on September 25, 2011, 03:51:30 PM
And that's why I'm on this forum! To learn from those who have been through this before :D