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Head tightening

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Just run the Atlas for the first time since rebuild. I have 2  different  tighten down patterns. One in the old Woolwich manual and a very different one in the Haynes thats repeated by Dunstall. Any Thoughts?, Normally I would ignore the Haynes , but then  not over impressed by the early Woolwich efforts with the Norton Engines either!!.

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Looked in the technical section of this site? 

Technical - heavy twins - cylinder head 

2 patterns shown with some explanations for each.

Regards, George. 

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Thanks George, interesting ,  so its Hobsons choice then  !.  At least the Atlas now has compressions that feel equal both sides and does not leave a smoke trail. It clatters a bit more than it did ,perhaps the drag resistance of the new rings makes the piston rock a little more. Also filled it up with what 15/40 car oil was in the garage. An early change to 20/50 or 40 classic may damp it down.

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hello with head Tightening there are two bolts behind each ear do these up HO sorry wrong head !! normally you start from inside out  to do up a cylinder head and outside in to undo a cylinder head as I was told many years ago witch works for me anyway  yours   anna J  

 


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