BSA WM20 Used Engine Spares

A BARREL WITH NO MAJOR DAMAGE ON +40.- WILL NEED A REBORE -SEE DESCRIPTION .
ALTHOUGH ON +40 WITH A GOOD BORE UNFORTUNATELY IT HAS DONE MANY MILES WITH A BENT CONROD ! ITS NOW WORN HEAVILY IN ONE PLACE AND WILL NEED A + 60 OR THIS +80 OR SO PISTON FITTED .
NOTICE – PLEASE READ -ALL PROCEEDS TO CHARITY AS CLOSING DOWN -SEE HOMEPAGE – TO GET DISCOUNTS SPEND OVER £100 .
DUE TO THE LARGE AMOUNT OF ORDERS , MANY THAT YOU DO NOT SEE, I AM NOW DOWN TO THE VERY LAST BSA AND MY OWN PERSONAL PARTS , ALL OF THESE , AS YOU MIGHT EXPECT ARE WW2 , GENUINE & A FEW VERY RARE PARTS . FROM 1ST MAY SOME RARE PARTS WILL SAY NOT DISCOUNTED . IF NOT MARKED THEN STOCK WILL STILL CARRY A DISCOUNT OF A VARIABLE RATE OF 10-20%.

BARREL AND PISTON – + 20. GOOD THICK FINS .
SMALL AREA OF FIN DAMAGE NEAR EXHAUST STUB -SEE PICTURES .

COMPLETE FLYWHEEL & ROD ASSEMBLIES .- SOME ARE STEEL SETS 66-635 – 4 LEFT.
ALL GOOD BUT WILL NEED REBUILDS IF GOING TO USE FOR USEAGE AND NOT DISPLAY !

N.O.S EXHAUST TAPPET HEADS -66- 1498.
SUPERB CONDITION AND OFTEN DAMAGED DUE YO INCORRECT USE OF VALVE LIFTER .

CRANKCASE MAGNETO SHIMS .005 THOU BRASS – 66- 2347.
THESE ARE N.O.S BUT HAVE TARNISHED ., if you have whining then youy need to shim the mag base .

PISTON +20 WITH N.O.S RINGS -HEPOLITE .
A QUALITY PISTON THAT I THINK WAS N.O.S BUT DAMP STORED HENCE MARKS .

BARREL WITH GOOD FINS . WITH BARE +60 PISTON .
THIS BARREL WAS GOT READY FOR A FUTURE REBUILD SO ALMOST EXTERNALLY PERFECT . IT HAS A LOOSE EXHAUST VALVE INSERT SO WILL NEED SORTING BEFORE USE.

WW2 BOTTOM END WITH CRANKSHAFT, CON ROD & TIMING SIDE PARTS .
MATCHING CASES , WAS RUNNING , WORKSHOP PLATE ON SIDE .

WM20 STAMPED CRANKCASES – A PROPER PAIR – POST WAR DATED 1955.
WOULD HAVE BEEN USED BY A WORKSHOP AS REPLACEMENT ENGINE .A GOOD PAIR