Timing Chain and Components

Fig 1: Timing Chain and Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
1	Timing Chain Tensioner Body
2	Timing Chain Tensioner Washer
3	Timing Chain Tensioner O-Ring Seal
4	Timing Chain Tensioner Plunger
5	Adjustable Timing Chain Guide
6	Adjustable Timing Chain Guide Bolt
7	Fixed Timing Chain Guide Bolt
8	Fixed Timing Chain Guide
9	Friction Washer
10	Timing Chain Drive Sprocket
11	Timing Chain Oil Nozzle Bolt
12	Timing Chain Oil Nozzle
13	Timing Chain
14	Camshaft Position Actuator Bolt
15	Exhaust Camshaft Position Actuator
16	Upper Timing Chain Guide
17	Upper Timing Chain Guide Bolt
18	Intake Camshaft Position Actuator
19	Exhaust Balance Shaft Assembly Bolt
20	Intake Balance Shaft Assembly Bolt
21	Exhaust Balance Shaft Assembly
22	Intake Balance Shaft Assembly
23	Balance Shaft Rear Bearing
24	Balance Shaft Drive Chain Tensioner Assembly Bolt
25	Balance Shaft Drive Chain Tensioner Assembly
26	Adjustable Balance Shaft Drive Chain Guide Bolt
27	Adjustable Balance Shaft Drive Chain Guide
28	Balance Shaft Drive Chain Guide Bolt
29	Balance Shaft Drive Chain Guide
30	Balance Shaft Drive Chain
31	Balance Shaft Drive Chain Guide Bolt
32	Balance Shaft Drive Chain Guide
33	Water Pump Drive Sprocket Bolt
34	Water Pump Drive Sprocket
35	Balance Shaft Drive Sprocket
36	Engine Front Cover Alignment Pins
37	Engine Front Cover Gasket
38	Oil Pump Cover Bolt
39	Oil Pump Cover
40	Oil Pump Outer Gerotor
41	Oil Pump Inner Gerotor
42	Engine Front Cover
43	Engine Front Cover Bolt
44	Crankshaft Front Seal
45	Crankshaft Balancer
46	Crankshaft Balancer Washer
47	Crankshaft Balancer Bolt
48	Oil Pressure Relief Valve Plug
49	Oil Pressure Relief Valve O-Ring Seal
50	Oil Pressure Relief Valve Spring
51	Oil Pressure Relief Valve Plunger
52	Water Pump Bolt
53	Engine Front Cover Access Plate Gasket
54	Engine Front Cover Access Plate
55	Engine Front Cover Access Plate Bolt
56	Belt Tensioner Bolt
57	Belt Tensioner