SOHC.co.uk Forums > CB350/400

Con rod stamp markings

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Bryanj:
Way back when you used to do that to mark which bore but on a new higher stressed (relatively) engine I would never do that as it creates stress points

beemsquar:
Cheers for your help guys.

I will contact the engineer this morning to see if he can shed some light on it.
It was nearly 3 months ago now though,  as that's how long it's taken to get all the shells together,  seemed to be a European shortage or something!
I have got a small parts washer, I washed most of the parts last night, dried them off with an airline and bagged them all up to keep them clean.
A newbie question for sure, but can anyone shed any light on which bore is number 1? Is it the same on any vehicle?  It's a steep learning curve but I'm getting there.

I would love to know if anyone has any recommendations for engineering books etc that give the basic terminology and procedures to follow when building an engine.

hairygit:
Number one cylinder is the left hand end one as you sit on the bike.

Trigger:
Can not understand why company's mark up like that, what is wrong with tipex or a engineering pen.   

NigelWilmshurst:
I replaced my con rods as the crank lays in the lower case with the con rods pointing to the front of the engine, original letters in some form of ink facing downwards and the new engineers punched dots facing towards you.

I checked another cb750 engine I have stripped and is the same as above, hopefully you can get on with the build now, good luck mate and ask away anything else that is not clear.

Nigel

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