The engine is the core component of any vehicle, often referred to as the "heart" of the car. It plays a crucial role in converting fuel into mechanical energy, making it one of the most essential parts of the entire system. The complexity of an engine is truly remarkable—comprising thousands of individual components that work in perfect harmony. If you’ve ever wondered what all those parts are called or how they fit together, this guide will help you understand the internal structure of an engine.
This article provides detailed exploded views and part diagrams for different sections of the engine. From the cylinder block to the crankshaft and oil system, these visual aids will give you a clear understanding of each component’s function and location. Whether you're a mechanic, an automotive enthusiast, or simply curious about how your car works, this information is both informative and visually engaging.
**1. Engine Cylinder Block Disassembly Parts Position Diagram**
Below is a breakdown of the key components found in the cylinder block section:
1 – 0 ring (thermometer housing to coolant pump)
2 – Thermostat housing
3 – Bolt (thermometer housing to cylinder block)
4 – Thermostat seal
5 – Thermostat cover
6 – 0 ring (thermometer to coolant tube)
7 – Connecting rod bolt
8 – Connecting rod large head bearing cover
9 – Connecting rod large head bearing bush (top)
10 – Connecting rod large head bearing bush (bottom)
11 – Link
12 – Piston
13 – Oil ring
14 – Second gas ring
15 – First gas ring
16 – Cylinder liner
17 – Exhaust bolt
18 – Coolant pipe exhaust bolt sealing washer
19 – Coolant tube
20 – Screw (coolant tube to cylinder block)
21 – Cylinder head gasket
22 – Bolt (thermometer cover to thermostat shell)
23 – Cylinder block
24 – 0 ring (coolant pump to cylinder block)
25 – Bolt (coolant pump to cylinder block)
26 – Screws (coolant pump to cylinder block)
27 – Coolant pump
28 – Locating pin (coolant pump to cylinder block)
29 – Locating pin (cylinder block to cylinder head)
**2. Engine Crankshaft, Oil Sump, and Oil Pump Disassembly Parts Name Diagram**
Here's a list of components typically found in the lower section of the engine, including the crankcase, oil sump, and oil pump:
1 – Oil pump assembly
2 – Oil pump gasket
3 – Crankshaft
4 – Thrust washer (2 on main bearing No. 3)
5 – Spindle washer (upper) (on 1st and 5th, flat; 2~4 groove-shaped)
6 – Positioning pin
7 – Crankshaft rear oil seal
8 – Flywheel assembly
9 – Bolt (flywheel to crankshaft)
10 – Main spindle (lower)
11 – Positioning pin (bearing seat to cylinder block)
12 – Bearing seat
13 – Positioning pin (bearing seat to transmission housing)
14 – Bolt (turbocharger inlet pipe to turbocharger)
15 – Washer between turbocharger inlet pipe and turbocharger
16 – Turbocharger inlet pipe
17 – Washer between turbocharger return pipe and turbocharger
18 – Turbocharger return pipe
19 – Turbocharger return pipe washer
20 – Bolt (turbocharger return pipe to cylinder block)
21 – Oil filter
22 – Oil filter joint
23 – Bolt (oil filter mounting bracket to bearing seat)
24 – Oil filter seat
25 – Filter plug of the oil filter seat
26 – Washer between oil filter seat and bearing housing
27 – Bolt (bearing seat to oil rail)
28 – Nut (bearing seat to oil rail)
29 – Oil pressure switch
30 – Oil sole shell
31 – Bolt [oil pan to bearing seat (long)]
32 – Oil pan oil drain screw plug
33 – Oil drain screw plug gasket
34 – Bolt [oil pan to bearing seat (short)]
35 – Bolt (oil oil collection filter to bearing seat)
36 – Oil collection filter
37 – Oil collection filter seal
38 – Oil rail center screw plug
39 – Bolt [bearing seat to cylinder block (long)]
40 – Bolt [bearing seat to cylinder block (short)]
41 – Bolt (oil pump to cylinder block)
42 – Crankshaft front oil seal
43 – Oil gauge pipe to bearing seat washer
44 – Bolt (oil gauge pipe to bearing seat)
45 – Oil gauge pipe
46 – Bolt (oil gauge pipe to cylinder block)
47 – Oil scale
48 – Torque converter drive disc
49 – Bolt (torque converter drive disc to crankshaft)
Whether you're studying engine mechanics or just looking for a visual reference, these diagrams and descriptions offer a comprehensive look at the inner workings of an engine. Understanding these parts can be incredibly useful for maintenance, repair, or simply satisfying your curiosity about how your car functions.
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