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Question on 912 O-rings

 
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dlj04(at)josephson.com
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PostPosted: Sun May 15, 2016 11:39 pm    Post subject: Question on 912 O-rings Reply with quote

There seem to be differing reports on whether you need the
cylinder-to-case o-ring on standard 912UL and ULS. Comments? Are there
recommended alternate sources? Confirmation that they are ordinary
buna-n or Viton? Thanks!

David Josephson
Santa Cruz


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Roger Lee



Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.

PostPosted: Mon May 16, 2016 5:32 am    Post subject: Re: Question on 912 O-rings Reply with quote

There is an "O" ring at the base of the cylinders. See Parts manual section
72-20-00 pg. 16. Item #14 and part #250510. It is a Viton 87mmx2mm "O" ring. I buy my "O" rings from Maryland Metrics


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rickofudall



Joined: 19 Sep 2009
Posts: 1392
Location: Udall, KS, USA

PostPosted: Mon May 16, 2016 3:26 pm    Post subject: Question on 912 O-rings Reply with quote

Get the size from the IPC then look for it at McMaster Carr. They have an extensive supply of differing materials and a good chart to help make a selection.

Rick Girard
On Mon, May 16, 2016 at 2:37 AM, D L Josephson <dlj04(at)josephson.com (dlj04(at)josephson.com)> wrote:
Quote:
--> RotaxEngines-List message posted by: D L Josephson <dlj04(at)josephson.com (dlj04(at)josephson.com)>

There seem to be differing reports on whether you need the cylinder-to-case o-ring on standard 912UL and ULS. Comments? Are there recommended alternate sources? Confirmation that they are ordinary buna-n or Viton? Thanks!

David Josephson
Santa Cruz


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