Home>Make: Norton>1973-74 Norton Commando 750 & 850>Engine, Primary Drive & Clutch>Crankshaft, Conrods, Pistons, Cam, Timing Gear

1973-74 Norton Commando Crankshaft, Conrods, Pistons, Cam

1973-74 Norton Commando 750 & 850 Engine: Crankshaft, Connecting Rods, Pistons, Camshaft, Timing Gear

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Plate #	Part Name	Part #	Qty Fitted	Description
1	Connecting Rod	068021	2	Billet type - even stronger.
2	Connecting Rod Big End Bolt	066486	4	3/8", forged, and uses rolled threads.	View
3	Connecting Rod Self Locking Nut	067827	4	3/8" CEI.	View
4	Big End Shell Set, Standard	064285	1	Standard - 1.75". Set of 4.	View
4	Big End Shell Set, 010	064286	1	Oversize +10 - 1.74". Set of 4.	View
4	Big End Shell Set, 020	064287	1	Oversize + 20 - 1.73". Set of 4.	View
4	Big End Shell Set, 030	064288	1	Oversize +30 - 1.72". Set of 4.	View
4	Big End Shell Set, 040	064289	1	Oversize +40 - 1.71". Set of 4.	View
5	Crankshaft, 850	064254	1
6	Crankshaft, 750	063106	1
7	Crank-cheek, Timing Side, 750	NM23262	1	Not available.
8	Crank-cheek, Drive Side, 750	060542	1	Not available.
9	Flywheel, 750	060731	1	Balance after fitting.
10	Dowell, Crankshaft Centre	067558	1	Fits through flywheel and cheeks.	View
11	Crankshaft Tab Washer	067534	2	Part of crankshaft studs and nuts kit - not sold separately.
12	Crankshaft Stud	064184	4	Part of crankshaft studs and nuts kit - not sold separately.
13	Crankshaft Stud Nut	064160	8	Part of crankshaft studs and nuts kit - not sold separately.
14	Crankshaft Stud	064185	2	Part of crankshaft studs and nuts kit - not sold separately.
15	Crankshaft Stud Nut	064189	4	Part of crankshaft studs and nuts kit - not sold separately.
-	Crankshaft Studs & Nuts Kit	067094	1	Stronger than bolts.	View
16	Crankshaft Oilway Screw	067600	1		View
17	Crankshaft Timing Pinion	067537	1	Half time pinion.	View
18	Crankshaft Timing Pinion Key	000572	1		View
19	Timing Pinion Back Plate	067525	1	Triangular, at rear of timing pinion.	View
20	Oil Pump Drive	067889	1	6 start.	View
21	Camshaft, Standard	061084	1		View
21	Camshaft, 2S	063536	1	Has more power at the top end at the expense of bottom end torque.
21	Camshaft, 4S	064858	1	More midrange power than the 2S, for sports road use and road racing.	View
22	Camshaft Thrust Washer	061086	1	Steel chamfered.	View
23	Intermediate Gear	061077	1	Complete with bush.	View
24	Intermediate Gear Bush	061079	1		View
25	Intermediate Gear Shaft	061078	1		View
26	Intermediate Gear Shaft Circlip	067690	1	At rear.	View
27	Camshaft Sprocket	061080	1		View
28	Camshaft Sprocket Key	000572	1		View
29	Camshaft Sprocket Nut	067774	1		View
30	Camshaft Drive Chain	067689	1	38 link.	View
31	Cam Chain Tensioner Slipper	061094	1		View
32	Cam Chain Tensioner Plate, Thin	067575	1	Inner plate, long end up.	View
33	Cam Chain Tensioner Plate, Thick	067576	1	Outer plate, short end up.	View
34	Cam Chain Tensioner Stud	062665	2	5/16 UNF.	View
35	CamChain Tensioner Washer	067700	2	5/16" serrated.	View
36	Cam Chain Tensioner Stud Nut	062692	2	5/16" UNF, small hexagon.	View
37/38	Piston Set, 750, Standard	067055	1	Complete with circlip, piston rings and gudgeon pin, 9:1.	View
37/38	Piston Set, 750, +20 Oversize (Hepolite)	067056	1	Complete with rings, gudgeon pins and circlips.	View
37/38	Piston Set, 750, +40 Oversize (Hepolite)	067057	1	Complete with rings, gudgeon pins and circlips, 73mm, 8.9-1.	View
37/38	Piston Set, 750, +60 Oversize	067110	1	Complete with circlip, piston rings and gudgeon pin, 9:1.	View
39	Piston Set, 850, Standard	063838	1	Complete with circlip, piston rings and gudgeon pin, 9:1.	View
39	Piston Set, 850, +20 Oversize (Hepolite)	064041	1	Complete with rings, gudgeon pins and circlips.	View
39	Piston Set, 850, +40 Oversize (Hepolite)	064042	1	Complete with rings, gudgeon pins and circlips.	View
39	Piston Set, 850, +60 Oversize (Hepolite)	064043	1	Complete with circlip, piston rings and gudgeon pin.	View
40	Piston Ring Set, 750, Standard (Hepolite)	067058	1	For both pistons, 73mm.	View
40	Piston Ring Set, 750, +10 (Hepolite)	067954	1	For both pistons, 73mm..
40	Piston Ring Set, 750, +20 (Hepolite)	067060	1	Hepolite, for both pistons, 73mm.	View
40	Piston Ring Set, 750, +30	067122	1	For both pistons, 73mm, compression ratio 8.9-1.
40	Piston Ring Set, 750, +40 (Hepolite)	067062	1	Hepolite, for both pistons, 73mm.	View
40	Piston Ring Set, 750, +60	067123	1	For both pistons, 73mm.
41	Piston Ring Set, 850, Standard	067958	1	For both pistons, 77mm.	View
41	Piston Ring Set, 850, +20	067960	1	For both pistons, 77mm.	View
41	Piston Ring Set, 850, +40	026730	1	For both pistons, 77mm.	View
42	Piston Gudgeon Pin, 850	063842	2	Wrist pin.	View
43	Piston Gudgeon Pin, 750	060955	2	Wrist pin.	View
44	PIston Wrist Pin Circlip	067834	2		View
45	Timing Side Bearing Washer	067526	1	Fits behind 067525 back plate.	View
-	Bottom End Rebuild Kit	084004	1	Includes main bearings, big end bolts, shells, chain, seals, studs, nuts, gaskets, etc.	View

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1973-74 Norton Commando Crankshaft, Conrods, Pistons, Cam

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