SOHC.co.uk Forums > CB350/400

CB400F Ressurection - Cam Chain Adjuster Housing Damaged

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SeanFD:
I acquired this 1978 400 Four two years ago – it had been sitting on a shelf for 16, now 18 years – and now that I’ve finished riding for a while, I’ve started working on getting it back on the road.
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I’ve posted this on the US site also, but putting it here too in the hope that someone Not active there might have some thoughts. Hope that’s allowed.

It’s rougher than I at first thought and I now pondering whether to just get it going and ride or to spend more time and money on a more thorough job. I’m inclined, at present towards the riding option.

One thing I discovered today is damage to the cam chain adjuster housing on the crankcase. The adjuster bolt is missing and the hole has been plugged with something. What are my options here?
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Is there a way to repair it properly? Would this involve a complete engine dismantle? Can I leave it as is? Or do I need new cases?
Thanks for your thoughts.

Nurse Julie:
You maybe able to have the area alloy welded but you don't know to what extent the damage is and you would still need to strip the engine to assertain the damage and have the repair done. In the long run it would probably be cheaper to source a spare engine from somewhere and use the bottom cases from that. Its a bodge that needs rectifying though, it won't stop you using the bike as is, unless the cam chain is knackered, the pivot seized and there is no tension.
Also saw your forks on the USA site, they can be ground down an re hard chromed by Philpots in Luton.

Bryanj:
Try looking at
http://noxandrattles.co.uk/CAMCHAINADJUSTERREPAIRKIT.htm.

Julie might be worth bookmarking?

Steve is it worth tricks and tips

Nurse Julie:

--- Quote from: Bryanj on April 28, 2020, 02:09:50 PM ---Try looking at
http://noxandrattles.co.uk/CAMCHAINADJUSTERREPAIRKIT.htm.

Julie might be worth bookmarking?

Steve is it worth tricks and tips

--- End quote ---
I sort of remember someone else on the forum recently using it with good results. I think it depends on how much metal is missing around the area as to whether this kit would be an option in this case.

Bryanj:
True, and i suspect the engine will need to come out anyway but worth looking at i think

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