Timing Chain and Components

Fig 1: Timing Chain and Components (LDK, LHU)

Courtesy of GENERAL MOTORS COMPANY

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