Barry Thompson Posted July 19, 2009 Share Posted July 19, 2009 when changing hydrolic 2 electric pin switch for replacement do I just unscrew old one and change , will I get oil leak or let in air .break lights not working, fuse ok ,I am not knowledgeable like most of you .spellings look strange! Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted July 19, 2009 Share Posted July 19, 2009 Do you mean you are replacing the hydraulic brake light switch with an electric one (mounted on top of the brake pedal), or removing the faulty hydraulic switch and fitting another one of the same ? If the latter, you will need to bleed the air out if the brake system after replacement. If the former, leave the dead hydraulic switch where it is (doesn't interfere with the brake system) and fit the electric switch to the brake pedal. Link to comment Share on other sites More sharing options...
Barry Thompson Posted July 19, 2009 Author Share Posted July 19, 2009 very qwick reply. thanks.it is the switch on hydraulic brake pipes above gear box which I want to replace, I have a correct new one which even I can change, was hoping I could do safely , but bleeding is beyond me Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted July 19, 2009 Share Posted July 19, 2009 Time to phone a friend then. Don't drive it until you have bled the system and have a firm brake pedal. Link to comment Share on other sites More sharing options...
anthony1956 Posted July 20, 2009 Share Posted July 20, 2009 linkys http://www.blatchat.com/t.asp?id=2111 and in this one see the post by V7 SLR especially: http://www.blatchat.com/t.asp?id=21268 there is a thread somewhere talking about changing from hydraulic switch to electric, which I did on my BDR and never had trouble since, except the electric switches periodically (every two years) seem to fail. Put "brake light switch" in "search" on blatchat and very large number of threads appear. I hope something here helps - as I can see you are actually asking about a different specific. edit: the received wisdom is to change to an electric switch- is my point. Anthony Edited by - anthonym on 20 Jul 2009 08:11:51 Link to comment Share on other sites More sharing options...
Stationary M25 Traveller Posted July 20, 2009 Share Posted July 20, 2009 Indeed ... you can do this without disturbing the hydraulic circuit, thus no need to bleed the brakes. Link to comment Share on other sites More sharing options...
strongy Posted July 20, 2009 Share Posted July 20, 2009 Make the switch to an electric switch mounted in the pedal box - much more reliable and no bleeding to worry about Dry-sumped White Supersprint Webshots here Link to comment Share on other sites More sharing options...
Baz Hemsley Posted July 20, 2009 Share Posted July 20, 2009 Just unscrew the old and replace with new one. job done. you might lose just a dribble of fluid-- top -up. job done. Link to comment Share on other sites More sharing options...
Barry Thompson Posted July 21, 2009 Author Share Posted July 21, 2009 sorted , thanks for your advice ,I am learning ! Link to comment Share on other sites More sharing options...
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