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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 Name Part # Qty Fitted Description
1 Connecting Rod NM25369 2 Billet type - much stronger.
2 Connecting Rod Big End Bolt NM23254 4 3/8", forged, uses rolled threads.
3 Connecting Rod Self Locking Nut NM23253 4 3/8" CEI.
4/5 Big End Shell Set, Standard 064285 1 Standard - 1.75". Set of 4.
4/5 Big End Shell Set, 010 064286 1 Oversize +0.010 - 1.74". Set of 4.
4/5 Big End Shell Set, 020 064287 1 Oversize +0.020 - 1.73". Set of 4.
4/5 Big End Shell Set, 030 064288 1 Oversize +0.030 - 1.72". Set of 4.
4/5 Big End Shell Set, 040 064289 1 Oversize +0.040 - 1.71". Set of 4.
6 Crankshaft, Assembled 063106 1
7 Crank-cheek, Timing Side NM23262 1 Not available.
8 Crank-cheek, Drive Side 060542 1 Not available.
9 Flywheel 060731 1 Balance after fitting.
10 Crankshaft Centre Dowell NMT2105 1 Fits through flywheel and cheeks.
11 Crankshaft Tab Washer NMT2032 2 Part of crankshaft studs and nuts kit - not sold separately.
12 Crankshaft Stud NMT2086 2 Part of crankshaft studs and nuts kit - not sold separately.
13 Crankshaft Stud Nut NMT2031 4 Part of crankshaft studs and nuts kit - not sold separately.
14 Crankshaft Bolt NMT2033 4 Part of crankshaft studs and nuts kit - not sold separately.
15 Crankshaft Bolt Nut NMT2031 2 Part of crankshaft studs and nuts kit - not sold separately.
16 Crankshaft Bolt Nut NM23280 2 Part of crankshaft studs and nuts kit - not sold separately.
- Crankshaft Studs & Nuts Kit 067094K 1 Stronger than bolts.
17 Crankshaft Oilway Screw NME4591 1
18 Crankshaft Timing Pinion NMT2035 1 Half time pinion.
19 Crankshaft Timing Pinion Key 000572 1
20 Timing Pinion Back Plate NMT2007 1 Triangular, at rear of timing pinion.
21 Oil Pump Drive NM24732 1
22 Camshaft, Standard 061084 1
23 Camshaft, Combat 063536 1 2S.
24 Thrust Washer 062601 -- For Combat. Not available.
25 Camshaft Thrust Washer 061086 2 Steel chamfered.
26 Intermediate Gear 061077 1 Complete with bush.
27 Intermediate Gear Bush 061079 1
28 Intermediate Gear Shaft 061078 1
29 Intermediate Gear Shaft Circlip NM17823 1 At rear.
30 Camshaft Sprocket 061080 1
31 Camshaft Sprocket Key 000572 1
32 Camshaft Sprocket Nut NM20732 1
33 Camshaft Drive Chain NM17806 1 38 links.
34 Cam Chain Tensioner Slipper 061094 1
35 Cam Chain Tensioner Plate, Thin NMT2218 1 Inner plate, long end up.
36 Cam Chain Tensioner Plate, Thick NMT2218A 1 Outer plate, short end up.
37 Cam Chain Tensioner Stud NMT247 2 5/16 UNF.
38 CamChain Tensioner Washer NM18202 2 5/16" serrated.
39 Cam Chain Tensioner Stud Nut NME3231 2 5/16" UNF, small hexagon.
40/41 Piston Set, Standard 067055 1 Complete with circlip, rings and gudgeon pin, 9:1.
40/41 Piston Set, +20 (Hepolite) 067056 1 Complete with rings, gudgeon pins and circlips.
40/41 Piston Set, +40 (Hepolite) 067057 1 Complete with rings, gudgeon pins and circlips..
40/41 Piston Set, +60 067110 1 Complete with circlip, rings and gudgeon pin, 9:1.
40A/41A Piston, Complete, Combat 063348/9 1 For Combat engine. Not available.
42 Piston Ring Top 060952 2 For Combat engine. Not available.
43 Piston Ring Plain 062262 2 For Combat engine. Not available.
44 Piston Ring Scraper 062461 2 For Combat engine. Not available.
42-44 Piston Ring Set, Standard 067058 1 For both pistons.
42-44 Piston Ring Set, +10 067954 1 For both pistons, 73mm, 8.9-1.
42-44 Piston Ring Set, +20 067060 1 For both pistons.
42-44 Piston Ring Set, +30 067122 1 For both pistons.
42-44 Piston Ring Set, +40 067062 1 For both pistons.
42-44 Piston Ring Set, +60 067123 1 For both pistons.
45 Piston Gudgeon Pin 060955 2 Wrist pin.
46 PIston Gudgeon Pin Circlip NM23276 2
47 Timing Side Bearing Washer NMT2008 1 Fits behind 067525 timing pinion back plate.
- Bottom End Rebuild Kit 084004 AR Includes main bearings, big end bolts, shells, chain, seals, studs, nuts, gaskets, etc.