Sunday, 20 December 2020

Flexi brake lines

 Well, there goes another two months. I count myself lucky that I have a job during these times, but I also wouldn't have minded a bit of time to work on the car. I'd have had it done by now! Well, not registered, but definitely built.

Anyway, the flexi brake pipes arrived, and I immediately realised that the original brake pipe brackets were far too small. So I've had to cut them off and replace them with some more made up from 3mm steel. Still, it gives me an opportunity to route the pipes properly.

This is what I have on the outside and inside;



It seems quite a smooth line, with the connector routed nicely to the copper pipe. The outer works well with the steering left and right;



But checking this with other pictures suggest the pipes just go direct from the caliper to the chassis, with no support. That seems wrong to me, a loose pipe in mid air that has to have some flex in it? Not convinced.

I'll see what the locost builders reckon, and adjust as necessary. 

*** UPDATE ***

Turns out I was way off the mark! It shouldn't be fixed to the wishbone, the movement would cause chafing and therefore would be an IVA fail. So despite me thinking it's a bit 'odd', being held in free air is actually the right way to do it. I think I could get away with it if I used rubberised P clips to secure it, but it's adding a complication and possible failure point where there is just no need for it. 

Now the issue is that I measured the lines based on it going via the wishbones, and with that no longer being true I need to figure out how to route them while taking into account the extra length. They're about 5 centimetres longer than the 'standard' measurement, so 500mm rather than 450mm. I don't really mind them being longer, it's definitely better than being shorter! I just need to figure out where to place them.