SOHC.co.uk Forums > CB350/400
Oil leak oil plug left side engine
Bryanj:
NO 333 is 350/400 323 500/550
TrickyMicky:
As I mentioned in a previous post somewhere, I have never performed major engine surgery, only 1st aid, never having gone any lower than the cylinder base gasket! Therefore I think that this permits me to ask stupid questions, such as, if the plug has to be held in by the generator cover, and you don't want any oil leaking out, why is there a plug there, and what purpose does it serve? I feel today could be a good learning day! Michael.
Bryanj:
The plug is there to blank the hole left when the main oil gallery is machined in the castings. The other end has a screwed in cap but there isnt room for that at generator end.
Also so you can clean the gallery
TrickyMicky:
Thank You for that Bryan. In those immortal words - "Now why didn't I think of that?". A good learning day indeed, enough to give me inspiration to open up the garage, let the wintery, watery sun shine in, and attack the beast in readiness for replacement of front mudguard, and complete front brake system. (When the last few parts arrive!)
K2-K6:
Tenuous link, but reading about the replicas made of the 250 six cylinder Honda racer, the blue prints have been "misplaced" at Honda and no contemporary people could remember all the internal oil ways etc. They had to x-ray original castings to rebuild the blue print library and so facilitate the new builds.
These production engines really are miniature masterpieces of original engineering, some absolutely superb thinking and application went into them. And of course they came from the thinking and expertise gained from those fabulous racers.
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