Technical Hyd brake lite switch

Plumbing my 34, what type of brake light switch are you guys using ?

 

Harley Davidson

 

Last time I did one, it was in stock at local auto parts store as Ford pickup, maybe around a 1960

They use bullet terminals

 

I don't use them, use a mechanical switch, build a bracket off the pedal, I use a switch from a 77 international scout, they're about twelve bucks and totally reliable.

 

Being in Cal, a VW aircooled place should have a 1966 or older VW bug switch for cheap, and those use standard 1/4" female push on terminals

 

I use mechanical switches also, which are more reliable than the hydraulic ones.

 

The hydraulic switch aka Ford switch is an easy do but I didn't have good luck with them on my 48 over the years. It was down under the truck behind the master cylinder on the frame an I always felt that it caught a lot of water thrown up in wet weather and dirt and road crud. I replaced it about every other year over a 13 year stretch.

 

I have had good luck with the ones from Ron Francis Wire Works, https://www.ronfrancis.com, (800) 292-1940
I run a '39-'48 master cylinder with silicon brake fluid.

Charlie Stephens

 

Mechanical.

 

Check out Summit part number Sum-890002 hyd with side terminals

 

This one under the pedal on the engine side of firewall, easily adjusts under pedal with 2 x wire hook up. Just screws to toeboard and easily replaced if it fails.

 

I'm running a hydraulic as a test. I had my first one fail in about 4 months. I can't remember where I purchased it. Now I'm trying NAPA p/n SL134. It seems to be better constructed than the first one I had. If it fails, I'll most likely switch to mechanical.

 

I'm running a NAPA as well. The one I got with my proportioning valve leaked right after it was bled.

 

...where can this switch be purchased?...thanks miller

 

I nearly converted my 63 Comet to a mechanical switch, because the pressure switch was so unreliable.

 

I too am mechanical. That way, as soon as you step on the pedal your brake lights are on (before you begin to slow down)...gives Marion Dretti in the beamer on your tail a bit of a warning. With pressure switches the slowing down is already happening by the time the lights are on (and gives Marion a chance to see the inside of your trunk or backseat).

 

The hydraulic switches have also been known to start fires.

 

Another vote for the Harley switch...

 

Check the Cole Hersee website

 

mechanical

 

X3 for the Harley Davidson one. its a low pressure switch on the rear brake circuit of every Harley out there. it never leaks never fails and cost about 15 bucks the last time I got one. When was the last time you saw a Harley going down the road with non functioning brake lights?

 

Mechanical, who wants to bleed your brakes for a switch ? And the before stated quicker warning.

 

I use a mechanical, out of a 58 Chevy truck. It looks like the pic in post #11, but without the adjusting arm. I just bend the arm slightly in the middle. Standard Parts #SLS43.

 

Watson's Street Works is where I got mine. No problems for years on my F 1

 

This morning.

 

I have a generic GM mechanical switch in my Falcon. It is calibrated to light up the instant there is even the slightest pedal movement.

 

Had good luck with VW Karman Ghia hydraulic for like the last 30 years.

 

49 up Chev pick up, nice mechanical switch. Weatherproof too.

 

Mechanical it is, Thanks for the tips

 

Mechanical, i used a leftover Toyota one I had laying around, build a bracket bolted on to the firewall so that the switch is pressed in when you're not pressing the pedal. Like a modern car