Running without the $2000 0-ring

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Mal S7
Posts: 661
Joined: Thu Aug 05, 2010 5:26 am

Running without the $2000 0-ring

Post by Mal S7 »

Despite owning my R100/7 for 19 years I am late to the folk lore of the $2000 o-ring.
Just happen to read up on it the other day. http://www.largiader.com/tech/filters/canister.html

So I had my vernier calipers ready while changing my filter today.

Took the cover off and this is what I saw-

Image

No shim, no o-ring! HTF did I do that!! Hmmmmm when did I even change that last ..... hangover ? dementia :? ... actually I don't ever recall using a shim, ever, but I always did use the o-ring.

So I have covered a few thousand kms at least with no shim and no o-ring, it seems without problem (?) Oil pressure light goes out when the bike starts. Engine with a bzillion kms is quiet as it ever was.

How?

Could it really be ...












Image
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ME 109
Posts: 7308
Joined: Tue Aug 03, 2010 3:00 am
Location: Albury, Australia

Re: Running without the $2000 0-ring

Post by ME 109 »

No need for a shim iffen yer don't have an o-ring Mal.
Most likely.......no shim caused the o-ring to be destroyed by the canister end, and is now on the bottom of the sump.

Maybe the o-ring fell out just yesterday? I'd go with that and ask no more questions. :?

Buy a shim.
Lord of the Bings
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Deleted User 287

Re: Running without the $2000 0-ring

Post by Deleted User 287 »

Didn't you hear? These bikes don't need lubricant. At least not in the gearbox. You can go 30 or more miles with each gearbox change!
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Kurt in S.A.
Posts: 1657
Joined: Tue Aug 03, 2010 12:08 pm

Re: Running without the $2000 0-ring

Post by Kurt in S.A. »

Did the o-ring stick to the cover? It's hard to tell in the photo, but is that the o-ring inside the canister near the base, somewhat shredded?

You may have been getting partial pressure, but certainly no filtering...the oil will just find the easiest path to the sump which is around the outside edges of the canister.

Kurt in S.A.
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Mal S7
Posts: 661
Joined: Thu Aug 05, 2010 5:26 am

Re: Running without the $2000 0-ring

Post by Mal S7 »

D'oh! :roll:

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ME 109
Posts: 7308
Joined: Tue Aug 03, 2010 3:00 am
Location: Albury, Australia

Re: Running without the $2000 0-ring

Post by ME 109 »

Hey Kurt!
Lord of the Bings
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Kurt in S.A.
Posts: 1657
Joined: Tue Aug 03, 2010 12:08 pm

Re: Running without the $2000 0-ring

Post by Kurt in S.A. »

Hey ME 109!
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Deleted User 62

Re: Running without the $2000 0-ring

Post by Deleted User 62 »

I love it when a plan comes together... :roll:
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hal
Posts: 194
Joined: Mon Aug 09, 2010 5:46 am
Location: Oslo, Norway

Re: Running without the $2000 0-ring

Post by hal »

I'm allways worried when someone reminds me of this... Now - what years of bikes have this issue? I've never bothered with it on my '74 /6, but maybe I should?

Cheers!
Hal

'74 R90/6
'97 R850R
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Kurt in S.A.
Posts: 1657
Joined: Tue Aug 03, 2010 12:08 pm

Re: Running without the $2000 0-ring

Post by Kurt in S.A. »

hal wrote:I'm allways worried when someone reminds me of this... Now - what years of bikes have this issue? I've never bothered with it on my '74 /6, but maybe I should?

Cheers!
The $2000 o-ring affects /7 and on.

Kurt in S.A.
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