BSA WM20 Used Engine Spares

This is a special page, solely listing spares for BSA WM20 Engine parts.

Parts are genuine unless stated reproduction.

Spares for other WW2 Military motorcycles can be found here.

VALVE SET . IN AND EXHAUST .

USED -GOOD CONDITION -BEEN RE CUT .

PISTON +60 USED WQITH PIN AND RINGS .

TAKEN FROM RUNNER , STILL GOOD TO USE , GOOD SIZE . NOT BSA . I CIRCLIP MISSING

CRANK WITH EXCELLENT BIG END AND GOOD TAPERED BEARINGS .

BRITISH MADE BEARINGS WHICH I WOULD USE IN MY OWN MACHINE .

SET OF CRANKCASES .- MID WAR .IN REALLY GOOD CONDITION .

MAG PLATFORM IS LIKE NEW ! COMES WITH MAG/DYNO STRAPS AND OIL SPINDLE

CYLINDER HEAD -THICK FINS -WITH HEAD BOLTS AND GASKET .

SMALL AMOUNT OF FIN DAMAGE WITHIN USEABLE LIMITS SET BY MILITARY .

VALVE SET- GOOD CONDITION . VALVES,SPRINGS ,CUPS AND COLLETS

THESE HAVE HAD VERY LITTLE USE . NICE SET .

TIMING PINION 65-692

GOOD CONDITION AND TEETH

TIMING SIDE SET -3 PIECES

ALWAYS BEEN TOGETHER .

OIL PUMP FIXING BOLTS X2 65-2604

GOOD CONDITION -READY TO FIT

OIL PUMP – GOOD CONDITION

USED . STILL LOTS OF LIFE LEFT

OIL PUMPS X 2 FOR SPARE PARTS .BUILD ONE .

COMPLETE , SHOULD GET 1V GOOD PUMP +SPARES

TIMING CHEST BOLT SET

WITH SPECIAL CAM PINION SPINDLE BOLTS 66-2007

OIL PUMP DRIVE SPINDLE .

REALLY GOOD CONDITION PART .

BSA M20 VALVE LIFTER

EXHAUST VALVE LIFTER ASSEMBLY -COMPLETE

GOOD -USED - VALVE LIFTER -A MUST HAVE PART FOR YOUR BIKE .

CRANKCASE SCAVENGE COVER 65-2611

GOOD CONDITION COVER

BSA WM20 VALVE COLLARS

66-221 VALVE SPRING COLLARS

GENUINE ,used set but rubber been replaced on one .

VALVE SPRINGS . GENIUNE.

USED BUT GENUINE.

BSA M20 VALVES

PAIR OF VALVES.-USED – HAVE BEEN RE FACED

GOOD CONDITION GENUINE VALVES.

VALVE LIFTER ARM.

GOOD CONDITION SERRATIONS . THIS ALLOWS CABLE/LIFT ADJUSTMENT TO SET VALVE LIFTER CLEARANCE

M20 OIL SUPPLY PIPES . RARE .

N.O.S OIL SUPPLY/RETURN PIPES ,COMPLETE

RARE FIND !! N.O.S . STORED 70+YEARS AND RUBBER FANTASTIC ,NOT PERISHED , ORIGINAL CADNIUM PLATE .

3 good crank bearings

3 good crank bearings

Genuine minor use

Main Bearing Set x 4

Main Bearing Set x 4

Used good + condition

Cam Pinion Spindles

Cam Pinion Spindles

Inlet and Exhaust

Ex/In Valves Set

Ex/In Valves Set

Complete with split collars