Board logo

Flexi pipe routing check
Slimy38 - 20/12/20 at 10:51 PM

I've done a trial fit of my flexi pipes, is this ok...





It doesn't seem to chafe on anything as I turn the steering or move the suspension, but other pictures I can see on the internet suggest the pipe going straight from the caliper to the car with no support at all. Should the pipe even be fixed to the wishbones?

[Edited on 20/12/20 by Slimy38]


Mr Whippy - 20/12/20 at 11:47 PM

Sorry but I don't like that and I don't think that would pass. As the arm is moving up and down it will rub on the arm which it's just not allowed to do. I don't know why you're even attaching it to the wishbone at all, it should come out the side of the car in a curved loop onto the caliper without touching anything. Once that's done you need to turn the wheels fully from side to side and full suspension deflection and confirm the hose is never tight or coming into contact with anything.

[Edited on 20/12/20 by Mr Whippy]


voucht - 21/12/20 at 05:51 AM

Hello,

This does not look OK to me either.

Flexi lines shouldn't be attached, they should be completely free of movement between the 2 fittings (that is the reason why they are flexible ), except on some particular cases where they are very long and can have one intermediate fitting point, which is not the case here.

Hope that will help


jps - 21/12/20 at 09:10 AM

I’ve been doing mine recently some pics here: https://meandthekitcar.wordpress.com/

If it’s a Haynes you’re building I’ve seen 450mm recommended as the right length for the hose. Mine are about 470 and they could do with being a tad shorter.



[Edited on 21/12/20 by jps]


Slimy38 - 21/12/20 at 09:26 AM

Thanks everyone, I'm glad I asked and appreciate the guidance. I'll take them off the wishbone and leave them free.


SteveWalker - 21/12/20 at 09:53 AM

If you find that they do foul something when loose, installing them with a slight twist at one end fitting will cause them to take a different path and remain clear.


nick205 - 21/12/20 at 11:43 AM

quote:
Originally posted by SteveWalker
If you find that they do foul something when loose, installing them with a slight twist at one end fitting will cause them to take a different path and remain clear.



This is how I did them on my MK Indy. Passed SVA no problem and never caused an iss in the 3,000 miles I drove it for either.