Anti sink sphere

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XantiaDaveEire
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Anti sink sphere

Post by XantiaDaveEire »

What would happen if the anti-sink sphere was never changed on the car?
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AndersDK
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Post by AndersDK »

The sphere will most likely be flat then.
Consequently you may experience rear sink issues.

Any specific issues with your Xantia ?
Anders (DK) - '90 BX16Image
XantiaDaveEire
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Post by XantiaDaveEire »

very hard rear after changing all spheres except the anti sink,so im leaving it in to a garage i used to go to and getting the four corner spheres changed again,just would prefer the car to sink after its turned off
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AndersDK
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Post by AndersDK »

Have you done Citaerobics to your Xantia after sphere changing ?

The anti sink sphere will not & can not in any way influence on the softness of the suspension.
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XantiaDaveEire
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Post by XantiaDaveEire »

plenty of citrobics :roll: ,the front is soft,rear has almost no movement..so is there any point in changing the anti sink sphere then?
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AndersDK
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Post by AndersDK »

XantiaDaveEire wrote:plenty of citrobics :roll: ,the front is soft,rear has almost no movement..so is there any point in changing the anti sink sphere then?
Not for solving this problem.

Does your Xantia seem to have the correct suspension height at rear - as the height largely influences the softness.

At normal height, the door sills should be exactly parallel to level ground.

There is of course a slight possibility, that the garage fitted the wrong rear spheres.
F.i. the hydractive spheres are much firmer than the standard non-hydractive spheres.
Last edited by AndersDK on 17 Jan 2010, 23:38, edited 2 times in total.
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Toby_HDi
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Post by Toby_HDi »

Check the rear height corrector to make sure the plastic link hasn't popped off.

The anti sink sphere is misnamed and is actually a reserve for the rear brakes for when the anti sink valve is closed. Therefore if it is never changed and goes flat you'd find you'd have none or very little rear braking effort should there be a sudden loss of system pressure.
Toby


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AndersDK
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Post by AndersDK »

Toby_HDi wrote:Check the rear height corrector to make sure the plastic link hasn't popped off.

The anti sink sphere is misnamed and is actually a reserve for the rear brakes for when the anti sink valve is closed. Therefore if it is never changed and goes flat you'd find you'd have none or very little rear braking effort should there be a sudden loss of system pressure.
Ahh - but the rear antisink wont work correctly if the the antisink sphere is flat.
So either name its got ... :wink:

And its only the rerar brakes you are loosing in case the engine stalls during drive, which you will hardly ever notice anyway :)

Lets just leave it out for now, as its the softness - and probably the height - that are the issues.
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citronut
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Post by citronut »

were they brand new,re/con or just second hand spheres fitted by the garage,

and as Toby says were they corect for you specific modle

regards malcolm
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