Hi,

I'm now finding some time again to get on with the build and my attention has turned to the brake system. I would be grateful for any views on a couple of questions:

i) My interpretation of the IVA manual (Hydraulic and Vacuum Systems 09D, para 16, revision 2 24/5/2010) appears to be saying that there is no requirement for a fluid level warning light on the reservoir as long as you can see the fluid level through the wall of the reservoir. However, I'm fairly sure that I have read a thread somewhere on here that says that a sensor is needed. Obviously there is a need for a sensor on the high pressure side. Does anyone have any experience of going through the IVA without the reservoir sensor?

ii) What do people think of the brake discs in the following link in terms of quality and value for money?


SIERRA RS COSWORTH Drilled Grooved Brake Discs Front Rr on eBay (end time 19-Mar-11 14:14:43 GMT)

Thanks in advance for the advice

Steve

My understanding was:

If you can see the fluid level, you need a warning light (either pressure or level detecting), but you dont need a test switch (to ensure the warning light is still functioning).

Easier to fit a level sensor using the handbrake switch as a means of testing now rather than after it fails IVA?

You must have a warning of a failure/fracture in the brake system causing a loss of fluid. That requires (as the simplest solution) a low level sensor on the resevoir. The warning light must also be testable from the drivers seat. That test requirement is easiest provided by wiring the handbrake light to the same warning light, as almost all tin-top makers do. Alternativly you have to use a test switch.