Norton ES2 1939

set IG timing and 

looked inside of oil tank 

a lots of metal pieces came out

and some tissue from exhaust pipe after fired up

fit a missing filter

made out of 

other model's filter

engine cut out after 5mins run, so checked magneto

looks freshly rebuild but just in case fitted a new condenser

and it was sticky exhaust valve caused problem

top end is now off and inspect. a bit oily 

valve guide was too tight in the middle

check piston - bore clearance

piston has scratch on one side on bottom and the other side on top, needs more inspect,

disassembling bottom end 

it suppose to be rebuild engine but inside was dirty and a lots of metal pieces inside

checking bore is right angle against cylinder base surface,
and it wasn't, it had bored in angle tipped towards posh rod side,
that is explain about scratch on piston 

check big end and conrod straightness 

found cam bush has crack

and teeth chipped off from cam gear and lifter

oil feed fitting has damaged

cleaned and made it nice fit

checking 

end play

made new bushings and reamed in line

made torque plates for cylinder for re-bore with a new piston

checking base surface

spent a lot of time to much the surface 

assembling 

tune

timed

 oil line, inner parts, inside all clean  

checking oil circulate

feeding through 

and returning 

started braking in

finished braking in

running in

good feeling on big single Norton, very nice to ride,
enjoy riding!