General information about the engine lubrication system (Peugeot 306)

The engine has a forced lubrication circuit. A gear pump, driven from the crankshaft via a special chain drive, supplies oil under the required pressure to all bearings and all moving parts. The filling capacity is not the same for all engines and is given in the tables of sizes and adjustments.

Figure 148 shows a schematic diagram of the TU engine lubrication system. The figure shows the engine with a connection fitting for a pressure gauge. Figure 149 shows a diagram of the lubrication system of the XU10 engine (with a working volume of 2.0 liters). 8- and 16-valve engines have a similar design.

Figure 148. Lubrication circuit of the TU engine. 1. Oil pressure warning light switch; 2. Oil filter; 3. Oil pressure gauge sensor; 4. Oil pan

Figure 149. Lubrication circuit of the XU10 engine. 1. Oil pan; 2. Bypass valve; 3. Oil drain shield; 4. Cylinder head filter; 5. Oil pipeline; 6. Oil pressure switch; 7. Oil pressure sensor; 8. Return channel of the lubrication system

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Article reviewed by editor: Shirokov Arseny

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Peugeot 306: Lubrication system

Oil pump
Oil filter
Checking oil pressure
Engine oil level

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