8 replies to this topic

[classicoop]

EDIT TITLE: FRONT and REAR bottoms out if the Hi-los are wound down completely.

 

I don't think the shocks are bottoming out.

 

I keep reading that if Hi-los (currently using: Minisport Adjusta-ride) are lowered too much, the adjuster will hit the nut on the cone.

 

1. Does the cone nut (red arrow) and cone seat (yellow circle) move independently of each other?

 

1.2 If it doesn't how would the adjuster (purple arrow) hit the cone nut?

 

I mean if it's solid, the adjuster would either be sitting on the nut or never touch it even if fully compressed

 

 cones.jpg   37.33K   17 downloads

Edited by classicoop, 03 September 2013 - 02:28 PM.

[Alex_B]

the cone is the spring essentially so yes the outer cone bit ie the yellow circle compresses when the car is going over a bump etc and the nut is part of the cones seat which doesnt move 

[classicoop]

I meant the yellow circle to be the seat part not the spring part of the cone.

 

the nut is part of the cones seat which doesnt move 

 

Exactly what I was thinking. So how would the adjuster hit the nut, when the cone compresses?

[charie t]

the bolt wound all the way into the hi lo, will hit the bottom of the nut on the rubber cone (Part with the circlip will contact the threads on the rubber cone)

[Dan]

  It means the adjuster will be constantly in contact with the nut, not that it will hit it at bump.  It will prevent the Hi-Lo seating in the cone properly.

[classicoop]

  It means the adjuster will be constantly in contact with the nut, not that it will hit it at bump.  It will prevent the Hi-Lo seating in the cone properly.

 

Exactly what I was thinking. Thanks.

 

I guess people saying it's the hilos hitting the nut on the topics about "bottoming out" are misinformed.

[Dan]

  If the rear bottoms out it's either the shock running out of travel or the inside of the cone hitting the domed part of the subframe that sits inside it, this is meant to be a bump stop.  The shocks tend to run out of travel on a lowered car, but will also do it if they are worn out, and the springs tend to bottom out if large of heavy wheels are fitted.  Rover have fitted various different things to get around this when fitting larger rims such as on the ERA Turbo or Sportspack cars, which usually amounts to fitting a plug of a softer material inside the spring so it will contact this first.  On the ERA this was an exhaust cotton reel cut in half and screwed into the spring using a rocker box nut to secure it but this will allow even less room for the Hi-Lo adjuster (this is what I have on my car).  On the Sportspack it was a plastic button that pushed into place I think and so allowed full clearance for a Hi-Lo, but they also reinforced the subframe to stop it twisting which helps a lot.  I don't remember what they did for the Cabriolet but it was something similar.

[classicoop]

and the springs tend to bottom out if large of heavy wheels are fitted.

 

 

It will bottom out regardless of ride height, right?

[Dan]

  It tends to bottom out at standard height with heavy wheels yes.