Borg Warner Velvet Drive 71, 72, Size of Control Valve "O" Ring for Velvet Drive 71, 72,

[berceuse]

Has anyone the dimensions for the Control Valve O Ring for Borg Warner Velvet Drive 71, 72,
BW Parts list Item 70 , part Number 4804H. Thanks.

[tjsb]

I will probably have a ring. I will be able to check it within the next week when I fish the pressure regulator valve out of the box to check size.

Yours,

Toby

[berceuse]

Thanks Toby.
That would be great, I expect it will be an imperial size Ring.
Many Thanks
Richard

[Folly Reach]

Try the extremely helpful guys at Lancing Marine.

[tjsb]

Dear Richard,

the o ring is 3.49mm in section diameter and 26.22mm overall diameter.

try these

IMG_20221217_164014219.jpg

o ring.jpg

Yours

Toby

[berceuse]

Toby,
Many Thanks for the info, your a star.
All the Best
Richard

[berceuse]

For Information.

I've finally tracked down the O ring Specification and Identification.

BS 210 Imperial. 3/4" Inner Diameter x 1/8" Cross Section .
(18.64MM INNER DIAMETER - 3.53MM CROSS SECTION - 25.7MM OUTER DIAMETER)

Regards
Richard