Hello,
i am on Holiday with my H3 in Hungary and noticed that my Powersteering is leaking a bit. It's not the highpressure-line, it's the connection between the pump and the reservoir.
I figured out that there is a oring ( # 10388957) to seal the connection.
No Opel-dealer in hungary has this partnumber in his computer...
Can somebody give me the measurement of this oring?
I don't want to rip everything apart to get the measurement, because it is only leaking a little bit, yet.
With the measurement of the oring i can get a new one before i cause a bigger leak.
Thank you in advance.
jens

 

This should cover your application:

 

Thank you for the tip with the oring set. I have such a set at home and noticed several times that the thickness of the orings would be to less in many cases...

Am i right with my guess that the inner diameter of the oring should be around 12mm (1/2")?
Then i would get 12mm (1/2") orings with several outer diameters and would put in the one that fits best.

jens

 

Hey,
according to a picture on rockauto, where both o-rings (pressure-side and reservoir) are displayed, the o-ring for the reservoir should be around 16mm id and 23mm od.
I try to get home with my slight leaking reservoir and try out a few o-ring sizes next week. I will and post here, wich one fits best.

greetings,
jens

 

Hello,
back in germany and o-ring changed.

The best fitting o-ring on the reservoir is a 16mm ID and 22mm OD.

The o-ring for the pressure line has an ID of 8mm and an OD of 12mm.

I used NBR O-rings from a local hydraulic supplier.