Honda CB750 Sandcast

Oil Gallery Plug Under Transmission Cover?

markb · 2 · 2055
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markb

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on: December 18, 2011, 04:27:19 pm
There's an interesting discussion going on at the SOHC4 site regarding this topic.  Take a look at the hole (circled in red) and tell me if you ever saw a plug for this hole.

Here's a link to the thread:
http://forums.sohc4.net/index.php?topic=99721.0
It has me really curious.
« Last Edit: December 18, 2011, 04:30:50 pm by markb »
Mark B
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hondasan

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Reply #1 on: December 18, 2011, 05:29:46 pm
Sandcast bikes rely on the gasket to seal off the end of that oil gallery. "Later" bikes use a rubber plug which has a lip that sits in a small shallow counterbore at the end of the gallery to seal off the gallery. I have never come accross any reference to this plug in the parts lists, and have no idea when it was first fitted.

Chris R.
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