Diesel car engine Peugeot 406

Diesel engines — general repair information
This subsection describes the repair operations that can be performed on the engine installed in the vehicle. If an already removed engine is being repaired, the dismantling operations may be ignored. Description of...

Specifications of diesel engines
Total information Designation: – 1.9 liters (engine 1905 cm 3 ) XUD9 – 2.1 liters (engine 2088 cm 3 ) XUD11 Engine codes*: – 1.9 liter engine DHX (XUD9BTF/Y/L3) – 2.1 liter engine P8C (XUD11BTE/Y/L/L3) Cylinder...

Compression pressure test (compression)
The value of the compression pressure shows, in most cases, how worn out the cylinder-piston group of the engine. To measure the compression pressure, a compression gauge for diesel engines with a maximum reading of at...

Installation of the gas distribution mechanism
A tool for locking the valve timing mechanism All models have mounting holes in the camshaft pulley, fuel pump pulley and flywheel. Locating holes are used to position the crankshaft, camshaft, and fuel pump in a...

Cylinder head cover — removal and installation
Removing Engine models 1.9 liters 1. Disconnect the ventilation hose from the front of the head and remove the air filter tube. 2. Unscrew the bolt securing the fuel supply hose bracket on the right side of the head. 3....

Crankshaft pulley — removal and installation
Removing 1. Remove the auxiliary drive belt. 2. To fix the engine crankshaft from turning, the assistant must engage fourth gear and press the foot brake all the way or remove the starter and fix the flywheel ring gear...

Casing of a gear belt — removal and installation
Removing 1.9 liter engines Upper front cover 1. Unscrew the fastening screw and remove the casing from the engine. Upper rear cover 2. Remove the front cover, unscrew the fastening bolts and remove the rear cover....

Toothed belt — removal, inspection and installation
Removing the timing belt (1.9 liter engines) 8. Square holes 10mm; 9, 10, 11. Adjusting bolts of the gas distribution mechanism; 12. Nut for fastening the pivot point of the tension mechanism; 13. Bolt fixing the...

Camshaft pulley — removal and installation
Removing 1. Remove the toothed belt. 2. Remove the camshaft pulley bolt. To fix the camshaft from turning, it is necessary to use a special tool that fixes the pulley (or, on 1.9 liter engines, remove the head cover and...

Crankshaft pulley — removal and installation
Removing 1. Remove the toothed belt. 2. Remove pulley from crankshaft. 3. Remove the segment key from the crankshaft. 4. Check the crankshaft O-ring for leaks and replace if necessary. Installation 1. Install the key on...

High pressure fuel pump pulley
Removing 1. Remove the toothed belt. 2. Remove the 8mm set bolts securing the fuel pump pulley from turning. 3. On some models, the pulley may be equipped with a puller, which consists of a plate bolted to the pulley....

Right engine mount and toothed belt tensioner
The drive toothed belt tensioning mechanism, consisting of a spring and a plunger, is located in the right suspension of the unit, which is bolted to the end of the engine. Right engine mount Removing 1. Before removing...

Toothed belt guide roller — removal and installation
Removing 1.9 liter engines 1. Remove the auxiliary drive belt. 2. Align the mounting holes in the camshaft pulleys, fuel pump and flywheel and fix them with bolts and rods. 3. Loosen the timing belt tensioner pivot nut...

Camshaft and pushers — removal, inspection and installation
Removing 1.9 liter engines 1. Remove the cylinder head cover. 2. Remove the pulley from the camshaft. 3. Remove the brake vacuum pump. 4. The camshaft bearing caps are numbered on the flywheel side (arrow). If the caps...

Checking and adjusting valve clearances
Valve shim thickness calculation A. Inlet valve; E. Exhaust valve 1. Measured clearance; 2. The difference between 1 and 3; 3. Normal clearance; 4. The thickness of the installed shim; 5. Calculated thickness of the new...

Removal and installation of a head of the block of cylinders (engines 1.9 l)
Attention! On 2.1 liter engines, due to limited access to the engine compartment, the engine must be removed to remove the cylinder head. Cylinder head bolt tightening sequence Removing 1. Disconnect the negative...

Selecting the cylinder head gasket
Piston protrusion Gasket identification by thickness 0.54 to 0.65 mm 1 incision 0.65 to 0.77 mm 2 notches 0.77 to 0.82 mm 3 notches 1. Check that the toothed belt is removed from the high pressure fuel pump pulley, then...

Checking the cylinder head bolts
1. It is recommended to replace the cylinder head bolts each time the head is removed. 2. Measure the length of the bolt from the base of the bolt head to the end of the bolt and compare it to the required length. With...

Oil pan — removal and installation
Removing 1. Disconnect the negative terminal from the battery. 2. Block the rear wheels, raise the front of the car and place it on stands. 3. Drain the engine oil. 4. If equipped, remove the connector from the oil...

Oil pump — removal, inspection and installation
Removing 1. Remove the oil pan. 2. Remove the two mounting screws and remove the sprocket cover from the front of the oil pump. 3. Remove the three bolts securing the oil pump to the cylinder block. Remove the chain...

Right crankshaft sealing ring
1. Remove the crankshaft pulley. 2. Measure the installation depth of the O-ring. 3. Remove the O-ring using the special tool. Alternatively, drill two small holes in the end of the o-ring, screw in two self-tapping...

Left crankshaft seal
1. Remove flywheel and clutch. 2. Measure the installation depth of the O-ring. Remove the O-ring using the special tool. Alternatively, drill two small holes in the end of the o-ring, screw in two self-tapping screws...

Camshaft O-rings
Right o-ring 1. Remove the camshaft pulley. 2. Remove the O-ring using the special tool. Alternatively, drill two small holes in the end of the o-ring, screw in two self-tapping screws, and use pliers behind the screw...