Home>Make: Norton>1975 Norton Commando 850 Mk3>Engine, Primary Drive & Clutch>Crankcases, Breather, Tacho Drive

1975 Norton Commando Mk3 Crankcases, Breather, Tacho Drive
1975 Norton Commando 850 Mk3 Engine: Crankcases, Filter, Breather, Tachometer Drive
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Plate #Part NamePart #Qty FittedDescription
1Crankcase Halves, Assembled0656661Stronger than original.
2Crankcase Dowel0676212To locate timing cover.
3Crankcase Dowel0626212Hollow.
4Camshaft Bush, Timing Side0654282
5Camshaft Bush, Drive Side0654252Plain.
6Crankcase Blanking Plug0626381In oil way.
7Oil Junction Block Dowel0677861Hollow.
8Crankcase Screw06268521-1/4" long, timing side to drive side at sump.
9Breather Tube0642001Screw in.
10Timing Plug0660061Crankcase timing side.
11Timing Plug Washer06600717/16" copper.
12Main Bearing0641182Superblend.
13Main Bearing Oil Seal0675671Rubber cased, seals better. Behind engine sprocket.
13Main Bearing Oil Seal067567M1Metal cased, not rubber, behind engine sprocket.
-Oil Seal Kit048023KAR
14Oil Seal Circlip0652451Crankshaft drive side.
15Main Bearing Shim067569AR0.003" thick, fits inner race.
16Cylinder Base Stud0638244Stepped, 5/16" UNF.
17Cylinder Base Stud, Front06263913/8" UNC base, 3/8" UNF top.
18Cylinder Base Stud Washer06649945/16".
19Cylinder Base Stud Washer06414743/8".
20Cylinder Base Stud Nut06265113/8" UNF, short, at front centre.
21Cylinder Base Stud Nut06382515/16" UNF, fits 063824 stud.
22Washer60232125/16".
23Bolt14021925/16" UNF x 1-1/2" long.
24Crankcase Bolt14012515/16" UNF x 4", not through engine plates.
25Oil Pump Stud Nut14030215/16" UNF.
26Crankcase Bolt, Short14021815/16" UNF x 1-1/4" long.
27Crankcase Bolt Washer60234815/16".
28Crankcase Bolt Nut14030215/16" UNF.
29Crankcase Stud, Top Front0626621
30Crankcase Stud Washer60232011/4".
31Crankcase Stud Nut14030111/4" UNF.
32Crankcase Stud0647871Top rear.
33Crankcase Stud Washer60232213/8".
34Crankcase Stud Nut14130313/8" UNF Nyloc.
35Sump Plug, Magnetic06418813/8" UNC.
36Sump Plug Washer06262413/8" copper.
37Tachometer Worm Gear0652011At front.
38Tachometer Housing Screw06267021/4" UNC x 3/4" slotted, at front.
39Tachometer Worm Gear O-Ring0652031To suit 065201.
40Tachometer Housing0652001No lip seal fitted.
40Tachometer Housing with Lip Seal0652001With lip seal fitted.
41Tachometer Housing Gasket0630561At front.
42Sump Filter Body0676761Without hole.
42Sump Filter Body Assembly, SS067676ASS1Complete with internals, no drain hole, stainless steel.
43Sump Filter Gauze0676771Stainless steel.
444Sump Filter Washer0676781Retains 067677 gauze.
45Sump Filter Internal Circlip0676791To retain 067678 washer in sump filter.
46Sump Filter Washer0676801For large filter.