|
PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
Information |
|
Brake Light SwitchViews : 2401 Replies : 9Users Viewing This Thread : |
|
Thread Tools | Display Modes |
|
Jan 9th, 2016, 13:05 | #1 |
Member
Last Online: Today 14:11
Join Date: Jan 2010
Location: Dublin. Pa USA
|
Brake Light Switch
Could someone tell me if the brake light switch - later model from year 1966 - is removed from the interior of the car or from the engine compartment? Thanks in advance.
|
Jan 9th, 2016, 18:22 | #2 |
Master Member
Last Online: Apr 22nd, 2024 18:48
Join Date: Oct 2013
Location: Alberta
|
as I recall the transition from hydraulic pressure sensing switch locate on a brass brake line junction block in the engine bay, possibly on the firewall, to a mechanical switch under the dash triggered by the brake pedal was 66/67.
have a look in both places and see what you have, if you can't determine, post a few pics. |
The Following User Says Thank You to c1800 For This Useful Post: |
Jan 9th, 2016, 19:11 | #3 |
Premier Member
Last Online: Today 19:08
Join Date: Jul 2007
Location: Connecticut, USA
|
SL;
C1800 has it right...changeover from earlier hydraulically activated (located at hyd brake distribution block on firewall behind engine) to later mechanically activated (located in pedal box of footwell) BLSW took place in 66-67' (market dependent). I have been on a campaign to get owners with hyd type to change over to the later type for reliability and other advantages, since I recognized the safety disadvantages of the hyd switches years ago. See: http://www.sw-em.com/safety_bulletin_4.htm Further suggested reading: http://www.sw-em.com/hydraulic%20bra...es%20notes.htm Cheers |
The Following User Says Thank You to Ron Kwas For This Useful Post: |
Jan 11th, 2016, 19:30 | #4 |
Member
Last Online: Today 14:11
Join Date: Jan 2010
Location: Dublin. Pa USA
|
Thanks to C1800 and Ron for your replies. Problem solved, was oil/grease buildup on both electrical contacts. No disassembly required.
|
Jan 11th, 2016, 20:51 | #5 |
Premier Member
Last Online: Today 19:08
Join Date: Jul 2007
Location: Connecticut, USA
|
Sl;
Congrats on locating and repairing, and thanks for following up with a report of findings. Be aware...if "oil/grease buildup on both electrical contacts" is enough to prevent electrical contact, the spring preload of push-on terminal (which should be present!) must not have been very good, because by design, pushing on terminals should cut through oxidation and surface contamination to allow contact of clean metal surfaces. This means after cleaning terminals of switch, you may want to (at the very least) squeeze terminals to restore some preload, and (at the very most) replace crimps with new! ...and of course: Apply ACZP! Suggested reading: http://www.sw-em.com/voltage_drop_in...sh_on_terminal Finally, you may have restored Brake Light function, but you haven't removed any of the known weaknesses. Please keep upgrading in mind as a future safety and reliability improving option! Cheers |
The Following User Says Thank You to Ron Kwas For This Useful Post: |
Jan 13th, 2016, 05:57 | #6 |
VOC Member
Last Online: Dec 14th, 2023 11:57
Join Date: Nov 2004
Location: fareham
|
Ron
On your brake switch upgrade do you supply a bracket suitable for a RHD car? Russ |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|