robmar Posted August 10, 2004 Share Posted August 10, 2004 not sure if this is chitchat ot techtalk put will post here anyway... Now I know most MOT places will probably not check but.... When you press the brake fluid check button on the dash should it light up or not to pass rob Link to comment Share on other sites More sharing options...
Paul McKenzie Posted August 10, 2004 Share Posted August 10, 2004 It should light to show you've made the circuit due to the fluid level in the master cylinder being sufficiently high Paul Link to comment Share on other sites More sharing options...
robmar Posted August 10, 2004 Author Share Posted August 10, 2004 ok great I use the race cap top on the brake master cylinder and this has no connections, and have the 2 connectors just cable tied up, however when I press the switch the light comes on but not to worry rob Link to comment Share on other sites More sharing options...
Chelspeed Posted August 10, 2004 Share Posted August 10, 2004 > It should light to show you've made the circuit Correct. > due to the fluid level in the master cylinder being sufficiently high Not correct . What actually happens is that there's a float in the reservoir with a pair of switch contacts. If the fluid level falls then at a certain point the switch is made and the light on the dash comes on to tell you that the fluid level is low. The light comes on whether you press the switch or not. The purpose of the switch is nothing more than to prove the bulb hasn't blown since the last time the level dropped 10 years before and that there is still 12V available. So for an MOT you want the light off when the level is OK, which you have, and if they bother checking the light should come on when you press the switch to show the bulb is OK, which you have. So you're OK. On the other hand the race master cylinder has the same thread on the cap so you could fit the float switch if you wanted to but it's something else to go wrong so best not if you can avoid it. Edited by - Chelspeed on 10 Aug 2004 13:24:58 Link to comment Share on other sites More sharing options...
robmar Posted August 11, 2004 Author Share Posted August 11, 2004 Chelspeed - thanks for that I do have the original cap somewhere in the garage, but looks like I should be OK rob Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now