Home>Make: Norton>1972 Norton Commando 750>Engine, Primary Drive & Clutch>Crankcases, Breather, Tacho Drive

1972 Norton Commando Crankcases, Breather, Tacho Drive
1972 Norton Commando 750 Engine: Crankcases, Crankcase Breather, Tachometer Drive
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Plate #Part NamePart #Qty FittedDescription
1Crankcase Halves Assembled0640451
2Crankcase Dowel0676212To locate timing cover.
3Crankcase Dowel0626212Hollow.
4Camshaft Bush0626002
5Main Bearing0641182Superblend, FAG, NJ306E-M1.
6Main Bearing Oil Seal0675671Rubber cased, seals better. Behind engine sprocket.
6Main Bearing Oil Seal067567M1Metal cased, not rubber, behind engine sprocket.
7Main Bearing Shim06756910.003" thick, fits inner race.
8Cylinder Base Stud, Front06263963/8" UNC base, 3/8" UNF top.
9Cylinder Stud, Stepped06264023/8" UNC base, 5/16" UNF top.
10Cylinder Stud06263913/8" UNC base, 3/8" UNF top.
11Cylinder Stud Washer60232125/16" plain.
12Cylinder Base Stud Washer06414773/8" thick type, small OD.
13Cylinder Base Nut06265025/16" UNF, fits 062640 stud.
14Cylinder Base Stud Nut06265113/8" UNF, short, at front centre.
15Cylinder Stud Nut06265263/8" UNF.
16Oil Pump Stud0626642
17Oil Pump Stud Nut14030225/16" UNF plain.
18Crankcase Blanking Plug0626381In oil way.
19Oil Junction Block Dowel0677861Hollow.
20Crankcase Bolt, Long14012515/16" UNF x 4" long, not through engine plates.
21Crankcase Bolt Nut14030215/16" UNF plain.
22Crankcase Bolt, Short14021815/16" UNF x 1-1/4" long.
23Crankcase Bolt Washer60234825/16", large diameter.
24Crankcase Bolt Nut14030215/16" UNF plain.
25Crankcase Stud, Top Front0626621
26Crankcase Stud Washer60232011/4" plain, thick.
27Crankcase Stud Nut14030313/8" UNF.
28Crankcase Stud, Top Rear0626611
29Crankcase Stud Washer60232213/8" plain, thin.
30Crankcase Stud Nut14130313/8" UNF Nyloc.
31Crankcase Screw06268521-1/4" long, timing side to drive side at sump.
32Sump Plug, Magnetic06418813/8" UNC.
33Sump Plug Washer0626241Copper sealing.
34Blanking Plate Bolt Washer60232021/4" plain.
35Blanking Plate Bolt0606332Not available.
36Blanking Plate Gasket0625482For Combat starter.
37Blanking Plate0615421
38Bolt0619211Not available.
39Split Pin162281Not available.
40Nut07002231Not available.
41Tachometer Worm Gear0610891Early type, no o-ring groove.
42Tachometer Housing Screws06267011/4" UNC x 3/4", at front, slotted.
43Tachometer Worm Gear O-Ring0612821
44Tachometer Housing0610901Standard type.
44Tachometer Housing0672541Complete, with proper lip seal fitted.
45Tachometer Housing Gasket0630561At front.
46Breather Body0626201Not available.
47Breather Body Cap0626141
48Crankcase Breather Gasket0626181
49Crankcase Breather Separator Filter0626151
50Crankcase Breather Retainer Disc0631162Retains filter foam.
51Bolt0679522
52Crankcase Breather O-Ring0604481
53Crankcase Breather Tab Washer0634182
-Crankcase Fitting Kit SS062661ASARStainless steel.