silicone brake fluid proof brake light switch The silicone brake fluid I use in my early Ford ruined the original stop light switch. Some one said Harley Davidson has a switch that will go on the master cylinder that holds up to silicone brake fluid. Does anyone know the H-D part number for it?
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Re: silicone brake fluid proof brake light switch Sal, I have been using the HD for years, can't remember the part number but bring the Ford switch in and they will match it. If I remember the ends on your wires will have to be changed for the HD switch. Regards, Rick
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Re: silicone brake fluid proof brake light switch Thank you for the information.
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Re: silicone brake fluid proof brake light switch How did the stop light switch fail? Quit switching, start leaking, plugged up with gunk? Several of the local guys are running silicone fluid and I'd like to know what to look for.
Thanks! |
Re: silicone brake fluid proof brake light switch Quote:
Ron Francis sells a silicone compatible switch that has been mentioned here several times. http://www.ronfrancis.com/prodinfo.asp?number=SW%2D32 http://www.ronfrancis.com/images/SW-32-Md.jpg Item Number: SW-32http://www.ronfrancis.com/images/clear.gifUnit Price: $28.95http://www.ronfrancis.com/images/clear.gifIn Stock |
Re: silicone brake fluid proof brake light switch H D brake light switch #72023-51C made in USA.
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Re: silicone brake fluid proof brake light switch I always use the mechanical lever switch that was used on the older Chev. pickups. Never had a problem with them.
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Re: silicone brake fluid proof brake light switch I have had two of Ron Francis's swithes fail, so far none of the HD switches have failed? when they failed the silicon got thru the seperation and hydro locked making the switch not work-how do I know this, I drilled on of the switches and fluid ran out, after letting the fluid out the switch worked
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Re: silicone brake fluid proof brake light switch I want to thank all of you who replied.
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Re: silicone brake fluid proof brake light switch I went through 2 or 3 of those Harley switches as well. Soon as they leak a little, it contaminates the contacts. I finally gave up and rigged a mechanical switch in front of the brake linkage. Problem solved!
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Re: silicone brake fluid proof brake light switch So the moral to this thread's story like others similar is DOT-5 silicone brake fluid sucks and don't use it in your old vehicle. Keep using the lesser DOT spec and change it periodically like you do your other fluids. Got it.
Lonnie |
Re: silicone brake fluid proof brake light switch I've had silicon brake fluid in my '46 for 25 + years and have had no issues. Replaced brake switch one time due to being inop. I use NOS Delco 4766 switches. Have'nt used the new replacements.
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Re: silicone brake fluid proof brake light switch I've had silicone brake fluid and same switch for over 12 yrs and no problems. Can't remember where I got the switch. Probably NAPA.
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Re: silicone brake fluid proof brake light switch I bought an original '37 Chevy in 1993, flushed the system and installed Silicone brake fluid. I never changed the brake light switch at that time or since. I drain & install new DOT5 fluid about every 7-years or so, changed brake shoes and one drum in the interim, but I still have the same brake light switch installed.
I have no idea if it's the one that came from the factory, but I do know it was old when I got the car in '93 and it's never missed a beat in 21-years and thousands of miles of driving. |
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Re: silicone brake fluid proof brake light switch We are going through this same problem ,wheel cylinders were sleeved in stainless new cups but the silicone fluid is leaking past ?? We think to course of a honing pattern .Ted
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Re: silicone brake fluid proof brake light switch I had a lot of problems with the brake cylinders, I had to even replace the master cylinder as the bore was so rusty with using the ordinary brake fluid in our 1947 Ford coupe in the 1970's, as the car was not used regularly. So I replaced the brake fluid with silicone fluid and have had no trouble since. I also have had trouble with the brake light switches and since I have replaced it with a Harley Davidson switch I have had no more problems. What I have found since our coupe is not used very often every month or two it is best to give the brake pedal a pump up to bring the pedal up and to make sure every thing is ok.
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