SOHC.co.uk Forums > CB350/400

CB400F - My first bike

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JParty:
Hi friends,

I am UK based and made my first post about my new CB400F here http://forums.sohc4.net/index.php/topic,184902.0.html I didn't realise there was a community a bit closer to home!

I have an oil leak from the rocker cover. Is there are recommended suppliers of the rubber gasket?

On the original post I showed that the engine had been previously chrome plated and painted black on the cylinders. The prep must not have been great (and the coverage suggests it was done within the frame). I'd like to remove this and I'm still undecided if I do this (after masking) with paint stripper, or whether I rig myself up a homemade soda blaster. Would appreciate your input!

Currently I have the engine out and will adjust valve clearances. I did a compression test and seemed decent. Is there any other 'health checks' I can do to be sure I'm not better waiting to tidy the engine externals when I've done a full strip. Ideally I avoid this as the engine runs well.

Nurse Julie:
Hi and welcome to the Forum, I'm pleased you found us.

mike the bike:
Welcome to the 400four forum.   A rocker cover leak is no big problem.
Remove the cover, clean the groove and gasket and refit it if it's not damaged.
I might have a spare if you're stuck.

Athame57:
Hi and welcome  ;D
I started out on the US forum too, nice people also. Good luck with your restoration and here is a great place for help.

Laverda Dave:
If your original has flattened out DSS sells genuine spares:

https://www.davidsilverspares.co.uk/CB400F-SUPER-SPORT-FOUR/part_3406/

Make sure the 'pips' in the gasket are in the correct place when fitting. You will see two indentations in the grove where they sit. And yourself a big favour, apply grease to the gasket once in otherwise it will fall straight out of the cover when you tip it over to fit it! The socket head allen bolt on the corner of the cover might be a bit suspect, it should be a 6mm threaded bolt.
Let us know how you get on and good luck.

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