Are spheres interchangeable?

pete the bus · Post by **pete the bus** » 04 Feb 2008, 16:46

Hi everyone,
Are all spheres the same? Can I interchange them?
Thanks for any help
Peter

rory_perrett · Post by **rory_perrett** » 04 Feb 2008, 16:58

In a word NO.

Different pressures, volumes and damping rates (that come from the size of the hole the fluid has to pass in and out of).

Accumulator and anti sink spheres are different again.

Could you be more specific?

pete the bus · Post by **pete the bus** » 04 Feb 2008, 17:24

I have 2 xantia estates, 1 for spares. The "good" car needs new spheres for the front, main accumulator, and anti-sink. The only decent spheres on the spare car are the front and rear ones. I will change the front ones over, but was wondering if i could use the rear ones on the spare to replace the main accumulator and anti-sink on the good car....
hope this makes sense ???
Regards
Peter

AndersDK · Post by **AndersDK** » 04 Feb 2008, 17:42

The accumulator sphere needs higher pressure than the rear wheel spheres initially are charged with.

The acc sphere is charged with 62bar.
The rear wheel spheres some 40bar.
- when they are new and have not lost any pressure.

Brand new boxed spheres are only some £22 from GSF. Its not worth the hassle replacing with unknown quality spheres.

Mandrake · Post by **Mandrake** » 05 Feb 2008, 05:47

pete the bus wrote:I have 2 xantia estates, 1 for spares. The "good" car needs new spheres for the front, main accumulator, and anti-sink. The only decent spheres on the spare car are the front and rear ones. I will change the front ones over, but was wondering if i could use the rear ones on the spare to replace the main accumulator and anti-sink on the good car....
hope this makes sense ???
Regards
Peter

Absolutely not - you can't use a suspension sphere (which has a damper valve in it) as an accumulator sphere - the damper valve will interfere with the pressure smoothing properties of the sphere, causing rapid pressure fluctuations as the pump operates.

Likewise you can't fit any other kind of sphere in place of an anti-sink sphere because anti-sink spheres have a unique threaded pipe fitting in the neck of the sphere which other spheres don't have - you'll find it impossible to screw in.

Regards,
Simon