Help Setting up my BC Coilovers

Help Setting up my BC Coilovers

Author
Discussion

Fabrix1664

Original Poster:

2 posts

127 months

Tuesday 15th October 2013
quotequote all
Hi Guys,

Im trying to figure something out either some advice on making sure my Bc

Coilovers i have bought second hand are fine and dandy. I had a local friend

of the family who does some work on vehicles install my BC Coilovers and had

them fitted.


They were second hand and already adjusted from the car they were on; anyway

after a bit of time we got them on the car with the rear set on first as

they were seperate springs and shocks. Seemed to sit okay and then installed

the front coilovers. Again seemd okay.


The height looked good on how it sat. Went for a drive and over certain

bumps i get a tap like noise. Almost like the BC Racing Coilovers are

bottoming out.


Anyone have any advice on these on what i need to check? I have set the

damper adjustments one click from hard from the rear and 18 from soft on the

front.

I also need to get camber set up and geometry set up but want to make sure

these are set up right for general road and some track day use.

Any help would be greatly appreciated.

My Car is a fors Focus ST 2010 Model
Coilover kit is BC Racing BR Series.


Also if you know of anywhere that i can take it in Manchester to check out

the set up to make sure its right this might be easier. Thanks!

The Wookie

13,970 posts

229 months

Tuesday 15th October 2013
quotequote all
Generally you wouldn't get a tap noise from a shock properly bottoming out, you'd get a world ending bang and a pretty violent input!

Quick and easy thing to have a look in the boot and check would be the rear top mounts, if they're anything like the Mk1 Focus they're easily fitted upside down and will tap loudly against the body over bumps.

Next might be that the springs are too short and are rattling about at full droop, but this would have been obvious during fitting.

If not then chances are the set you've bought have faulty top mounts or the damper units themselves are faulty. Get them checked for gas pressure (or if physically possible compress them by hand and see if they extend by themselves), if there isn't any then it's a sure sign that things aren't well. The good news is that coilovers are generally pretty easy and cheap to rebuild with the right kit. I doubt the manufacturer would charge much!

Edited by The Wookie on Tuesday 15th October 16:53

Fonzey

2,066 posts

128 months

Tuesday 15th October 2013
quotequote all
The top nut (17mm?) beneath the adjustment knob is known for coming slightly loose.

Hit it with an impact gun and see how it sounds after that.

Fabrix1664

Original Poster:

2 posts

127 months

Friday 25th October 2013
quotequote all
Ok will try the top nut alternativley i been told by a garage they are adjustable and may need to be longer; does anyone know what the height should be of the damper? should it be the same as the origonal dampers?