SOHC.co.uk Forums > CB350/400
CB400/4 ENGINE STRIP, ASSESSMENT AND REBUILD BY JULIE - NOW COMPLETE
Nurse Julie:
--- Quote from: Oddjob on October 03, 2017, 07:59:03 PM ---Seems to have been running rich, carbon should be a sort of biscuit brown BUT that was in the days of leaded petrol, might not be the same with unleaded.
I'd check the rings, there appears to be some blow past the rings as the piston skirts show burning. Area between top and middle ring has carbon on it, more than there should be and the gap appears quite large in the ring. I suspect it may need a new set of rings.
The cam followers look a little stepped, ask Graham to have a look at them as it might just be the light. Cam journals look really good, not a great deal wrong as yet.
--- End quote ---
Thanks Ken. There are no steps on the faces of the followers, it's just the photo. I have seen steps on the engines Graham has in that big, it would be like jumping off a cliff for an Ant😁. Graham had said the rings had probably had it as the engine had too much crankcase pressure and oil and smoke in the airbox. I was going to fit new rings anyway but will see what the bores measure as may need a rebore and new rings.
Nurse Julie:
--- Quote from: paul gledhill on October 03, 2017, 07:59:46 PM ---And.....the workshop now looks like a bomb has hit it and I have been told in no uncertain terms to clear it up.
;D ;D ;D
Having seen his workshop I bet he has.
--- End quote ---
No Paul, I'm in the dirty workshop, not the inner sanctum of the engine building room !!. ;D ;D
paul G:
--- Quote from: Nurse Julie on October 03, 2017, 08:23:53 PM ---
--- Quote from: paul gledhill on October 03, 2017, 07:59:46 PM ---And.....the workshop now looks like a bomb has hit it and I have been told in no uncertain terms to clear it up.
;D ;D ;D
Having seen his workshop I bet he has.
--- End quote ---
No Paul, I'm in the dirty workshop, not the inner sanctum of the engine building room !!. ;D ;D
--- End quote ---
is he being a bit petty then ;) ;)
Nurse Julie:
Ummmm, no, wouldn't call it petty and I did have lots of tools out of the boxes when really I only needed 3 different size spanners and sockets. Anyway, I had a tidy up in the workshop so he's happy again now. It's all ready for me to wreck again tomorrow ::) ::)
paul G:
--- Quote from: Nurse Julie on October 03, 2017, 09:31:49 PM ---Ummmm, no, wouldn't call it petty and I did have lots of tools out of the boxes when really I only needed 3 different size spanners and sockets. Anyway, I had a tidy up in the workshop so he's happy again now. It's all ready for me to wreck again tomorrow ::) ::)
--- End quote ---
What is tomorrow's plan of action.
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