Re: Oil leak from hydraulic pump... (archive)

The leak was occuring at the pump mounted down by the alternator.
The leak was occuring from the shaft.
I disconected the, what I think, pressure sensor at the Accumulator charging unit which is located back in the trunk under the spare tire. And then the leak from the pump stopped.

The CSi hydraulic pump is, like You described, generating pressure to the brakes and steering and also the AHK (Active Rear Axle Kinematics) not ASC+T.
From my knowled there is no separate hydraulic conection to the ASC on the CSi.
The only indirect hydraulic connection is thru the ABS system.
The hydraulic pump have 5 hydraulic connections:
1) Inkomicng oil from oil tank (to the rear part of pump)
2) Inkomicng oil from oil tank (to the front part of pump)
3) Outgoing pressure to stering
4) Outgoing pressure to breaksystem ABS, ASC etc..
5) Outgoing pressure to AHK

1) and 2) are connected by 1 "Y" pipe juste before they are entering the pump house. So there is only one pipe go up to the oil tank.

I may be worng, so please correct me...

Mikael

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