Hi Joe,
There are 2 O-rings and a crush washer that make the seals on the spin-on
oil filter adapter.
One O-ring is located in a channel on the inside of the adapter. It seals to
the center boss in the oil filter port on the engine block where the
threaded hole is for the attachment bolt. This is an internal seal. This is
the O-ring I think you were talking about?
The second O-ring is the square channel ring that filts into a channel on
the perimeter of the oil filter port on the engine block. This O-ring makes
the external seal between the engine and the adapter. It is the same O-ring
that make the canister housing seal to the engine. It typically comes with a
new canister filter.
There is or should be a crush washer under the bolt head holding the spin on
adapter to the block.
Rimmer Bros in the UK offer a kit that has all of these seals (plus a few
others for some different versions of the adapter). The Cat. No. of the kit
is RR1238 S-Kit. You can find it here on their web page:
http://www.rimmerbros.co.uk/rimmer/triumph/tr6/accessory#Lubricants%20&%20Fluids
John Cyg.
CC52927LO
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