keithnairn:
Extreme lack of concentricity between guide and seat, caused by valve guide being fitted squint
keithnairn:
Removing old exhaust valve seats
keithnairn:
Machining new exhaust valve guides from Colsibro
keithnairn:
Machining valve seat inserts
keithnairn:
New guides made oversize ready for fitting into repaired guide bores
keithnairn:
Inserts ready to fit
keithnairn:
Inserts fitted
keithnairn:
Cutting three angle valve seats with the Serdi
keithnairn:
New seats formed, nice and concentric
keithnairn:
Inlet ports re-angled by 5 degrees and opened up to 36mm
keithnairn:
Rebuilt gearbox
keithnairn:
Machining crankcase to accept larger liners
keithnairn:
Lower case, crank and gearbox installed
keithnairn:
Crank fully rebuilt, dynamically balanced and fitted with a set of my Arrow forged connecting rods.
keithnairn:
Con rod detail
keithnairn:
Cases closed crank in perfect phase
keithnairn:
78mmforged piston with Teflon coated skirt
keithnairn:
Cylinder head complete and ready to fit
keithnairn:
Cams and cam bearings
keithnairn:
Billet bearings and hardened steel washers on new head bolts
keithnairn:
Gas flowed 36mm ports
keithnairn:
Engine flying back into the frame
keithnairn:
Ventilated clutch hub, allows more oil to pass through the clutch plates
keithnairn:
Kevlar faced clutch friction plates
keithnairn:
IMG_2911
keithnairn:
IMG_2913
keithnairn:
IMG_2916
keithnairn:
IMG_2918