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O-Ring Powersteering

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Old Aug 18, 2020 | 01:09 PM
  #1  
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Default O-Ring Powersteering

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
 
Old Aug 18, 2020 | 06:44 PM
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Old Aug 19, 2020 | 03:56 AM
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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
 
Old Aug 22, 2020 | 08:12 AM
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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
 
Old Sep 10, 2020 | 05:30 AM
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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.


 
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