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Re: Oil filler cap

I bought the '94 RS in 1998. First thing was to buy a safer oil-cap. At the local BMW dealer I found one with a 7 mm hex key, a rather rarely used size. I had no problem, it came with a key-chain-short hex key.
Bob Silas

----- Original Message ----- From: Dancoe, John
To: oilheads-digest
Sent: Wednesday, June 25, 2008 5:51 PM
Subject: Oil filler cap

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

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