SOHC.co.uk Forums > CB350/400
CB400/4 ENGINE STRIP, ASSESSMENT AND REBUILD BY JULIE - NOW COMPLETE
Woodside:
this thread is gonna break all uk records
Green1:
I don't know about a blank cheque I can send a blank stare ;D ;D
Time for a part time job would be nice. I fell asleep in the van at lunch time today and woke up with the customer standing next to me about an hour later :-[
Nurse Julie:
--- Quote from: Woodside on October 09, 2017, 08:59:32 PM ---this thread is gonna break all uk records
--- End quote ---
You could be right there Jason but, it was never going to be straightforward with a Woman involved in it ::) ::) ::)
matthewmosse:
My first 550 was like that, on all pots. Still ran ok but had previously been rebuilt with lots of gasket goo and old gaskets 're used. Leaked like a sieve and didn't like to start if hot, but still get to an indicated 105 mph in that state. The bottom end was fine, must have done 10k miles without any missed gears etc. The head proved ok too and was put back in service.
Bryanj:
Used to see that sort of damage regularly on CB175 and the K3/4 250's if the engine was "thrashed" from cold, nearest explanation i got was from a man called Stan Dibbden who was the NGK rep and used to race sidecars a loooong time ago, he reconed that it was differential expansion when haeted too quick nipping the rings and shattering them. These broken bits then worked there way out of the grooves and got hammered into the head.
As to how good he was I was servicing a two stroke 250, cant remember Suzuki or Yamaha but he picked up the plugs and examined them with an eye glass and told me to take the heads off as a piston was about to hole, he was right! and the plugs looked a good colour as well
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