Any ideas on what brake switch this is? If I or anyone can id this switch. I ***ume after swapping it out I have to bleed the brakes. I’m thinking check the connection to see if power goes thru. thanks Jerry
That looks like any standard 1/8" pipe thread dual male electrical hydraulic switch. Google 1957 Ford brake light switch a**** many other year Ford in line switch.
2 person operation , no bleed . Hold pedal down remove and install while pedal is down . Your finished
Can you bleed this way? Install new switch. Get helper to pump and hold pedal. Loosen new switch slightly to bleed through threads. Tighten switch while pedal is still being held down. Done.
SLS27 Standard Motor Products...I just bought one for my 59 Rambler. You dont need to bleed the brakes after you change it, if you do it quickly. Like I said, I just did it, no spongy pedal.
Yes, I have done many and never had to bleed. I do however turn the open end of the switch up and put a couple drops of Brake Fluid in the switch or till it's full. Then loosen the Old switch and being ready remove the old and very quickly install the New. Plug it in and you're done. Like Squirrel said, his is in a Rambler. This switch part # SLS27 Standard Motor Products is used in many different vehicles.
The Harley switches have one other advantage over the auto parts store variety; you can get them with either internally threaded posts for wiring (using small ring terminals), or with 1/4" male blade connectors. Those OEM-style female 'bullet' connectors are getting hard to find if you need replacements....
As far as what it is, they are most commonly called FORD brake light switches because they were installed on Fords for several years (plus some other cars but never Chevy or GM from the factory) until Ford wised up and did away with them. I probably changed ten of those on mid 60's Fords for every other style of brakelight switch combined that I ever changed while working in shops. They just don't last that long but they aren't expensive.
I just went through this... couldn't find any locally, but my podunk town parts stores don't stock much of anything these days. The press-on type for sending units don't have the detent to 'lock' them to the smooth brake switch post.
I've never seen a pressure switch that was factory installed on a GM vehicle from the factory. I've only seen them on Ford and AMC. GM are lever or push ****on style. That doesn't mean that GM never came with one but I have never seen one with one.
Look at a 1940ish Cadillac. I got to replace the switch twice on my brother's 40 LaSalle. https://www.ebay.com/itm/304484272353
Is there a way ro test power to the switch ? The connectors have a lot of corrosion. I was going to clean up connections first then have my wife step on brakes. Thanks Jerry
use a volt meter or test light, to see if there's power to the switch. Should be 12v relative to ground. also, if you connect the two wires together, the brake lights should come on
Thanks I will check. But just for information these are the rear taillight on my 26. Are these brake lights also.? Thanks Jerry
Harley Davidson has a low pressure switch that works well, only you have to you have to pay the price.
My experience is that those don't last very long. Over about a dozen years I replaced 3 of them on my 57 Ford. After the last one I finally put in a lever type from a 60's Chevy truck and have had no problems in the last 10 years. Food for thought.
If those are the only lights then they better be brake lights too. They need to have a dual filament bulb to be both tail lights and brake lights
Try to find NORS American. The imports are hit n miss, some can't even take brake light amps for very long. 6 or 12 volt, both sketchy. And for the record my Packard has 1 too...
You can test the switches with compressed air also. Connect test light and apply air to the brake fluid port. The light should come on.
I bought a sls27 light switch the thread is 3/8. I think the thread size is 5/16. I need two prongs on it. Any ideas? thanks jerry
The Jalopy Journal
