More sensitive hydraulic brake light switch needed

  • Joel
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13 May 2022 17:29 #45400 by Joel
Hi, 

On my 1929 Cord L29, the brake light doesn't come on unless I'm really stomping on the brakes. I have a similar situation in my 49 Plymouth, but not quite as bad. 

Does anybody know of a very sensitive hydraulic brake light switch, something that would activate with just barely a touch of the brakes? Preferably something that could be found locally if a guy had the part number or the application. 



I have considered installing a mechanical switch on the pedal somehow, but it seems it would be much cleaner and simpler to replace the hydraulic switch with a more sensitive one.





Thanks very much, Joel

Joel Nystrom
1929 Duesenberg Model J Murphy Convertible Coupe
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13 May 2022 22:29 #45406 by 1748 S
I recall something about owners that change the brake fluid to synthetic have this issue.


Gary Parsons

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14 May 2022 13:11 #45409 by Curt Schulze
Replied by Curt Schulze on topic More sensitive hydraulic brake light switch needed
I have NOS 34-36 Auburn, if they are the same.

The bitterness of poor quality remains long after the sweetness of low price is forgotten.
Be of Good Cheer
Curt

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  • mikespeed35
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17 May 2022 03:50 #45426 by mikespeed35
Replied by mikespeed35 on topic More sensitive hydraulic brake light switch needed
I have never heard of a more sensitive brake pressure switch. I don't have that problem with my L-29. Have you tried another switch? They have a seal between the brake fluid and the contacts for the switch. When I have cut ones that failed apart, I have found that the contacts had arched enough that the contacts were compromised. May be yours is Failing but still functions with much pressure.
CORDially Mike

Mike Huffman
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18 May 2022 03:24 #45429 by pfree3233
Hi Joel,
Hot Rod companies such as Painless wiring and Ron Francis Wiring have low pressure brake light switches. They work in the range of about 20-50 lbs. You may want to try Yogis 800 373 1937, they carry both lines. Good luck Pat
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18 May 2022 03:57 #45430 by mikespeed35
Replied by mikespeed35 on topic More sensitive hydraulic brake light switch needed
I learn something every day, Thanks for the info. Pat.
CORDially Mike

Mike Huffman

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