Fuel Coupling O-ring spec

[ChazzyB]

Has anyone got the spec/sizes for the fuel coupling Viton O-rings? I've measured an old one as best I can and get 1.71mm c/s and 7.5mm ID. I wonder if they're imperial sizes rather than metric?  I've seen 'British' sized rings at 1.78mm c/s x 7.65mm ID. Nearest metric are 1.5mm c/s x 7.5mm or 1.6mm c/s x 8.1mm ID.

I think the dealer prices are outrageous, verging on larcenous!

[EvilBetty]

I think they are S.A.E.  I just grabbed a variety pack from the auto parts store and popped on the one that fit the best.

Try emailing QuickCouplings (they make the connectors) and have had excellent customer service in the past.

http://quickcouplings.net/html/contact.htm

[ChazzyB]

TVM, a bit of detective work has turned them up: 5/16" ID and 1/16" cross-section.

[KuzzinKenny]

Viton O rings can be found here....

http://www.triumph-online.co.uk/triumph ... 1611-p.asp

KK