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 COMPLETE.

USEABLE ORIGINAL FITMENTS.

ENGINE SHAFT TIMING PINION NUT. 29-905

GOOD -USEABLE CONDITION .

CUSH DRIVE DISTANCE PIECE-65-2540

USEABLE ORIGINAL FITMENT .

OIL PUMP SPINDLE RETAINING PIN 65-2580

GOOD -USEABLE CONDITION .

MAGDYNO STRAP SET.

GREAT CONDITION -COMPLETE READY TO FIT SET.

COMPLETE VALVE SET -VALVES,SPRINGS, COLLARS& SPLIT COLLARS.

GOOD USEABLE CONDITION .-MINIMAL WEAR.

ENGINE SHAFT TIMING PINION.

USEABLE ORIGINAL FITMENT .

TIMING CHEST -GEAR PLATE BOLTS AND CAM PINION SPINDLE BOLTS .

COMPLETE SET IN GOOD CONDITION WITH ORIGINAL WASHERS.

ENGINE DRIVE SET -19TOOTH -4 PARTS .

GOOD TO USE.SOME SURFACE RUST .

WW2 TIMING COVER WITH GOOD QUILL.

CORRECT FOR WW2 BIKES COMPLETE WITH SMALL SPRING AND BALL.

VALVE LIFTER ASSEMBLY -COMPLETE.

GOOD PEG,THREADS AND SERRATED LEVER. GOOD TO HAVE PART !!

SET OF TIMING COVER SCREWS.

USEABLE ORIGINAL FITMENTS.

CRANKCASE AIR RELEASE-COMPLETE ASSEMBLY.

GOOD GENUINE PART -GREAT SHAPE.TESTED ON ENGINE.

OIL PUMP SPINDLE.-66-2620.

USED - GOOD TO USE .COMPLETE.

TIMING GEAR PLATE .

GOOD BUSH ,CLEAN AND FIT.

SET OF CAMS-TOP CONDITION .

VERY GOOD USEABLE CONDITION .

SET OF MAG/DYNAMO STRAPS-WITH TRUNIONS -NO BOLT

USEABLE ORIGINAL FITMENT .BARE.

CRANKCASE BREATHER ASSEMBLY COMPLETE.

USED PART. TESTED AND WORKING

MAGDYNO DRIVE IDLER PINION. 66-2250

USED - GOOD TO USE .COMPLETE WITH BUSH.

PAIR OF CAMS. INLET AND EXHAUST.

CLEAN AND SHINEY SURFACES , USEABLE.

VALVE SET COMPLETE.VALVES,SPRINGS AND COLLET PARTS .

COMPLETE READY TO FIT .VALVES WILL TAKE GRINDING IN .

OIL PUMP SPINDLE RETAINING PIN.

GOOD CONDITION READY TO FIT .

OIL PUMP SPINDLE 66-2620

USED -GOOD CONDITION FOR AGE .

OIL PUMP BOLTS 15-848

GOOD STRAIGHT PAIR.

OIL PUMP COMPLETE. 65-2619

USED -GOOD CONDITION FOR AGE . NO CRACKS TO BODY NOTED .

SET OF USED GENUINE MAIN BEARINGS .

GOOD TO USE IN MY OPINION . GENUINE BEARINGS NOW HARD TO FIND.

BARREL AND PISTON .+ 20. 1/2MM O/S .BSA PISTON 66-1025

ALTHOUGH FINS ARE RUSTY THEY ARE NOT DAMAGED AND STILL REASONABLY THICK . USEABLE .WITH VALVE GEAR AND PART OF VALVE LIFTER.

TIMING COVER -WW2 TYPE.

NICE CONDITION . HAS GOOD QUILL. JOINT FACES GOOD .

TIMING GEAR PLATE

GOOD TO USE.SOME SURFACE RUST BUT GOOD BUSH.

SET OF CAMS FROM SAME ENGINE .

GOOD USEABLE CONDITION .

ENGINE DRIVE SET. 18 TOOTH.STANDARD WW2 ISSUE.

GOOD USED SPROCKET WITH ALL 4 MAIN PARTS .

66-2007 CAM SPINDLE BOLT X2

USED -GOOD CONDITION .

65-2335 IDLER PINION SPINDLE.

TAKEN FROM LOW MILAGE ENGINE . GOOD CONDITION .

65-2425 CAM PINION SPINDLES.

USED-TAKEN FROM LOW MILAGE ENGINE

N.O.S ENGINE BEARING CIRCLIP -STILL IN GREASE.

RETAINS THE DRIVE SIDE MAIN BEARING.

SET OF CAMS – GOOD USED CONDITION .

NICE PAIR WITH WHAT LOOKS GOOD PROFILES .

VALVE CHEST COVER .

GOOD CONDITION PILED ARMS EARLY COVER .

timing cover -late war -good condition .

good quill -just removed from running engine .

CRANK WITH EXCELLENT BIG END AND GOOD TAPERED BEARINGS .

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

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

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

bottom end -complete- very good runner – 1943

serviced in 1955 and little used . good engine to use .