Topic: Crankcase oil collar o-ring

[zabzob]

So I'm looking at parts 3 and 15 here:

https://www.cmsnl.com/honda-cb750k5-four-1975-usa_model483/partslist/E++22.html

Mine has the collar and what looks like a kind of metal double wall ring thing around it. Do I need the rubber o-ring as well, or is the metal thing good enough?

[Tim2005]

I've only ever seen an o ring there. Any chance of a photo of the metal ring thing?

[zabzob]

Welp... on closer inspection, it was a badly worn o-ring and some crusty oil that made it look like a metal thing at a quick glance. Turns out it is a rubber o-ring.