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Rear Wheel Spindle BSA A10/A7/B33/M33/B31/M20/M21 Plunger

BSA B31/B33 Chain Guard
A10 Early S/A

BSA Sidestand A7/A10. B31/B33.
sw. Arm 1954-61 Paint not perfect Please check all pcitures

BSA B31/B33 1949-53 Parts Book

1949-1952-3
350cc and 500cc
Single Cylinder
OHV Models

128 Pages

BSA B31, B33 Rigid, Sprung and Plunger Frame / Main Bearing Set (3)1. Outer drive side Bearing   44) 70-9974. E9974. 24-0724. NF305C. 24-724.OD: 62 mm
ID 25 mm
W: 17 mm
NF305C

2. Timing Side Bearing  23) 24-0722. 24-722. MRJA7/8J. RM9L. CFM7/C2. RFM9.
OD: 2 1/4"
ID: 7/8"
W: 11/16"
MRJA7/8J

3. Inner Drive Side Bearing 34) 65-2045. 6205. 57-1070. 02-1598. 021598.

Engine Steady Plate BSA B31/B33 Sw. Arm

BSA B33/B34 Pushrod Tunnel
used

For restoration - no warranty

BSA B33/B34 Pushrod Tunnel
used

For restoration - no warranty

BSA B33 Inlet Valve GuideG459

Clutch Spring BSA B31-B33,
4-Spring Clutch

L: 1 1/2", 38mm
OD: 5/8", 16mm
ID: 15/32", 12mm

Made in England

Burman 1933-39 4 spring Clutch
Burman 1927-39 4-5 spring Cluch light Weight.

BSA B31/B33 Silencer, Rigid Frame 350cc 1939-50
1 5/8"= 41.3mm

chromed
Made in England
Muffler

Wiring Harness BSA M20/21 M33 B33

Rigid & Plunger

no wiring diagram available

BSA Exhaust Pipe 350/500cc B31/B33/M33 1958-61
chromed
including Alternator Models
1 5/8" - 41mm

Made in UK

BSA Exhaust Pipe B31/B33
Rigid and Plunger
1939-54

1 5/8" - 41mm
Chromed

Made in England

BSA Rocker Spindle Thrust Washer B31/B33

Außen: 21.4mm
Innen: 13mm
Dicke: 1.9mm

BSA B31/B32/B33/B34 Goldstar Exhaust lifter/Decompressor spindle spring ID  8.5 mm OD  10.5mm L: 12 mm

BSA Piston Ring Set / Piston Rings Std.
500cc
Ring: 4mm thick, 3.5mm deep
Upper + Middle Ring: 2.35mm thick

BSA B33 Piston Ring Set / Piston Rings +020
+020=85.5mm
500cc
Oil Ring: 4mm thick, 3.5mm deep
Upper + Middle Ring: 2.35mm thick

BSA B33 Piston Ring Set / Piston Rings +040
+040=86mm
500cc
Oil Ring: 4mm thick, 3.5mm deep
Upper + Middle Ring: 2.35mm thick Made in Taiwan - have proofed to be succesfull

BSA B33/M33 Piston Ring Set / Piston Rings +060
+060=86.5mm
500cc
Oil Ring: 4mm thick, 3.5mm deep
Upper + Middle Ring: 2.35mm thick

BSA B33. B34. M33. 500 cc Cylinder Liner 1947-62 cast Iron barrelMade in EnglandPlease look at all pictures

BSA B31. B33. Engine Plates used 1954 - For restoration - no warranty

BSA Piston +60 = 86,5 mm OHV 1947-52 86,5mm. 1947-1952.B33, B34, B34 Gold Star8.5:1 JPLong Rod Models only. Rod number o/e 66-48385mm stdincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou

BSA Piston +40= 86 mm  OHV 1947-52 .B33, B34, B34 Gold Star8.5:1 JPLong Conrod mod. only. Rod number o/e 66-48385mm stdPlease look at all picturesincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou 

BSA Piston +20  OHV 1947-52 85,50mm. 1947-1952.+020 = 85.5 mmB33, B34, B34 Gold Star8.5:1Long stroke  Models only. Conrod number o/e 66-48385mm std JPincluding gudgeon Pin, piston rings and circlipsPiston Clearance 0.12mm or 45thou