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Re: Oil filler cap

Hi John,

A&S has a nice one. It is very secure in that it uses an insert you have to remove the valve cover to install. Plus it comes with a Vition o-ring...

They have others which are chrome, plain, or with a logo...

'94 Pearl R1100RS

On Jun 25, 2008, at 3:51 PM, Dancoe, John wrote:

Back in '95 I put a viton o-ring in my engine oil filler cap, and it's been
working fine 'til just recently.

I need to replace the o-ring, or maybe spring for a tamper-proof filler cap.

I'm not super worried about sabotage; the bike's in secure parking 99.9% of the time and it's never been a big issue in my personal experience or on this list. Still, it doesn't seem like a bad idea to address a fairly critical

What do we like in tamper-proof caps these days--if anything? Seems like I read on this list that some on the market have mechanical issues (jam nuts
come loose or some such). I don't need to sabotage myself!

Are hex head OEM caps back-compatible? I'm betting not but that could be a
nice choice if they are.

Who's a likely supplier for the replacement o-ring in viton? My notes say it's
a #214 but no clue where I bought it.

John Dancoe
'93 R11RS