Home>Make: Norton>1972 Norton Commando 750>Engine, Primary Drive & Clutch>Crankshaft, Conrods, Pistons, Cam, Timing Gear

1972 Norton Commando Crankshaft, Conrods, Pistons, Cam, Timing Gear
1972 Norton Commando 750 Engine: Crankshaft, Connecting Rods, Pistons, Camshaft, Timing Gear
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Plate #Part NamePart #Qty FittedDescription
1Connecting Rod0648962Billet type - much stronger.
2Connecting Rod Big End Bolt06648643/8", forged, uses rolled threads.
3Connecting Rod Self Locking Nut06782743/8" CEI.
4/5Big End Shell Set, Standard0642851Standard - 1.75". Set of 4.
4/5Big End Shell Set, 0100642861Oversize +0.010 - 1.74". Set of 4.
4/5Big End Shell Set, 0200642871Oversize +0.020 - 1.73". Set of 4.
4/5Big End Shell Set, 0300642881Oversize +0.030 - 1.72". Set of 4.
4/5Big End Shell Set, 0400642891Oversize +0.040 - 1.71". Set of 4.
6Crankshaft, Assembled0631061
7Crank-cheek, Timing SideNM232621Not available.
8Crank-cheek, Drive Side0605421Not available.
9Flywheel0607311Balance after fitting.
10Crankshaft Centre Dowell0675581Fits through flywheel and cheeks.
11Crankshaft Tab Washer0675342Part of crankshaft studs and nuts kit - not sold separately.
12Crankshaft Stud0641842Part of crankshaft studs and nuts kit - not sold separately.
13Crankshaft Stud Nut0641604Part of crankshaft studs and nuts kit - not sold separately.
14Crankshaft Bolt0641854Part of crankshaft studs and nuts kit - not sold separately.
15Crankshaft Bolt Nut0641892Part of crankshaft studs and nuts kit - not sold separately.
16Crankshaft Bolt Nut0678352Part of crankshaft studs and nuts kit - not sold separately.
-Crankshaft Studs & Nuts Kit0670941Stronger than bolts.
17Crankshaft Oilway Screw0676001
18Crankshaft Timing Pinion0675371Half time pinion.
19Crankshaft Timing Pinion Key0005721
20Timing Pinion Back Plate0675251Triangular, at rear of timing pinion.
21Oil Pump Drive0678891
22Camshaft, Standard0610841
23Camshaft, Combat06353612S.
24Thrust Washer062601--For Combat. Not available.
25Camshaft Thrust Washer0610862Steel chamfered.
26Intermediate Gear0610771Complete with bush.
27Intermediate Gear Bush0610791
28Intermediate Gear Shaft0610781
29Intermediate Gear Shaft Circlip0676901At rear.
30Camshaft Sprocket0610801
31Camshaft Sprocket Key0005721
32Camshaft Sprocket Nut0677741
33Camshaft Drive Chain067689138 links.
34Cam Chain Tensioner Slipper0610941
35Cam Chain Tensioner Plate, Thin0675751Inner plate, long end up.
36Cam Chain Tensioner Plate, Thick0675761Outer plate, short end up.
37Cam Chain Tensioner Stud06266525/16 UNF.
38CamChain Tensioner Washer06770025/16" serrated.
39Cam Chain Tensioner Stud Nut06269225/16" UNF, small hexagon.
40/41Piston Set, Standard0670551Complete with circlip, rings and gudgeon pin, 9:1.
40/41Piston Set, +20 (Hepolite)0670561Complete with rings, gudgeon pins and circlips.
40/41Piston Set, +40 (Hepolite)0670571Complete with rings, gudgeon pins and circlips..
40/41Piston Set, +600671101Complete with circlip, rings and gudgeon pin, 9:1.
40A/41APiston, Complete, Combat063348/91For Combat engine. Not available.
42Piston Ring Top0609522For Combat engine. Not available.
43Piston Ring Plain0622622For Combat engine. Not available.
44Piston Ring Scraper0624612For Combat engine. Not available.
42-44Piston Ring Set, Standard0670581For both pistons.
42-44Piston Ring Set, +100679541For both pistons, 73mm, 8.9-1.
42-44Piston Ring Set, +200670601For both pistons.
42-44Piston Ring Set, +300671221For both pistons.
42-44Piston Ring Set, +400670621For both pistons.
42-44Piston Ring Set, +600671231For both pistons.
45Piston Gudgeon Pin0609552Wrist pin.
46PIston Gudgeon Pin Circlip0678342
47Timing Side Bearing Washer0675261Fits behind 067525 timing pinion back plate.
-Bottom End Rebuild Kit084004ARIncludes main bearings, big end bolts, shells, chain, seals, studs, nuts, gaskets, etc.