Diesel engine specifications (Peugeot 305)

General information

Type - 4-cylinder, 4-stroke in-line engines with overhead camshaft and compression ignition of the mixture. Transverse installation with a 30° rearward rotation. The gearbox is located on the left side of the engine.

Designation:

• 305 1.7 l - XUD 7
• 305 1.9 l - XUD 9

Number of cylinders - 4

Additional designations:

• 1.7 l (without turbocharging) — XUD7
• 1.7 l (turbo) - XUD7T/L
• 1.9 l (without turbocharging) — XUD9
• 1.9 L (turbo) — XUD9T

Cylinder diameter and piston stroke:

• 1.7 l - 80.0 x 88.0 mm
• 1.9 l - 83.0 x 88.0 mm

Compression ratio:

• 1.7 l - 23
• 1.9 l - 23

Compression pressure (when turning the crankshaft on a hot engine):

• Minimum - 18 bar
• Normal - 25-30 bar

The maximum pressure difference between any two cylinders is 5 bar
Working volume:

• 1.7 l - 1769 cm³
• 1.9 l - 1905 cm³

Maximum Torque (ISO):

• 1.7 l 110 Nm at 2200 rpm
• 1.9 l 118 Nm at 2000 rpm

Maximum Power (ISO):

• 1.7 l 43.5 kW at 4600 rpm
• 1.9 l 47.0 kW at 4600 rpm

Maximum rotation speed:

• No load - 5100 rpm
• Under load - 4600 rpm

The firing order of the cylinders is 1-3-4-2 (cylinder N 1 from the flywheel side)

Cylinder block

Cylinder diameter:

• 1.7 l - 80.000-80.018 mm or 80.30-80.048 mm
• 1.9 L — 83.000-83.018 mm or 83.30-83.048 mm

Pistons and piston rings

Piston diameter:

• 1.7 l — 79.93±0.008 mm or 79.96±0.008 mm
• 1.9 l — 82.930±0.009 mm or 82.960±0.009 mm

Piston ring gaps (mounted on the piston):

• Upper compression - 0.20-0.40 mm
• Second compression - 0.15-0.35 mm
• Oil scraper - 0.10-0.30 mm

The inner diameter of the connecting rod upper head bushing is 25.007-25.020 mm

The maximum weight difference between any two pistons is 2.5g

The maximum difference in protrusion between any two pistons is 0.12 mm

Crankshaft

Axial displacement: 0.07-0.32 mm

Main journal diameter:

• Standard - 60.0 +0/-0.019 mm
• Repair size - 0.3 mm

Crankpin diameter:

• Standard - 50.0 +0/-0.016 mm
• Repair size - 0.3 mm

Maximum out-of-roundness of main/connecting rod journals is 0.007 mm

(Original publication on the website: «www.peugeotbook.ru»)

Cylinder head

Maximum deformation is 0.07 mm (depending on whether the camshaft can turn freely)

Maximum degree of regrinding (see text) - 0.40 mm

The protrusion value of the vortex chamber is 0-0.03 mm

Maximum length of cylinder head bolts (Torx type bolts - see text):

• All engines except XUD9TE/L - 121.5 mm
• XUD9TE/L — 146.8 mm

Valves

Valve seat angle:

• Intake valves, up to October 1986 - 120°
• Intake valves, since October 1986 - 90°
• Exhaust valves, all models - 90°

Recess depth of valve heads relative to cylinder head surface:

• Inlet valves - 0.50-1.05 mm
• Exhaust valves - 0.90-1.45 mm

Valve clearances (cold engine):

• Inlet valves - 0.15 + 0.08 mm
• Exhaust valves - 0.30 + 0.08 mm

Valve timing (with a gap of 1.0 mm):

• The inlet valve opens at 8° before TDC
• The intake valve closes at 40° after BDC
• The exhaust valve opens at 56° BDC
• The exhaust valve closes at 12° after TDC

Valve stem diameter:

• Intake valves - 8.005 mm
• Exhaust valves - 7.986 mm

Valve head diameter:

• Intake valves, up to October 1986 - 56.0 mm
• Intake valves, after October 1986 - 38.5 mm
• Exhaust valves, all models - 33.0 mm

Camshaft

Axial displacement: 0.07-0.16 mm

Lubrication system

Lubricant type/specification: Universal motor oil, viscosity SAE 15W/40, in accordance with API SG/CD specification (Duckhams Diesel QXR, QS, Hypergrade Plus or Hypergrade)

Lubrication system capacity (when changing oil) — 4.5 l plus 0.5 l for the filter

The amount of oil that fits between the minimum and maximum marks on the dipstick is 1.5 l

Oil pressure (at engine temperature 80°C):

• Minimum - 2.0 bar at 800 rpm
• Maximum - 3.5-5.0 bar at 4000 rpm

Oil pressure switch response pressure:

• The relay switches on at 0.58-0.44 bar
• The relay switches off - 0.8 bar (maximum)

Oil filter type: Champion F104

Oil pump

Type - With two gears

Opening pressure of the safety valve is 4.0 bar

Axial clearance of gears - 0.12 mm

The circumferential clearance between the gears and the pump body is 0.064 mm

Tightening torque (Nm)

• Camshaft Bearing Caps - 18
• Connecting rod bearing caps:
• Stage 1 - 40
• Loosen, then stage 2 - 20
• Step 3 - Pull up to a 70 degree angle
• Lubrication line plug - 28
• Main bearing caps - 70
• Front crankcase - 11
• Oil pump cover - 9
• Oil pump mount - 13
• Pallet - 19
• Flywheel - 50
• Cylinder head bolts (until September 1986.):
• Stage 1 - 30
• Stage 2 - 60
• Step 3: Loosen 1/4 turn and then 60
• Step 4: (after 10 minutes of engine operation at 3000 rpm).
• Loosen 1/4 turn and then 70
• Cylinder head bolts (since September 1986.):
• Stage 1 - 30
• Stage 2 - 70
• Step 3 - Tighten another 120°
• Cylinder head bolts (Torx type - see text):
• Stage 1 - 20
• Stage 2 - 60
• Step 3:
• All engines except XUD9TE/L - Tighten 180°
• XUD9TE/L — Tighten by 220°
• Fuel injection pump bracket - 20
• Camshaft sprocket - 35
• Lower timing case - 12
• Crankshaft pulley bolt:
• Stage 1 - 40
• Step 2 - Tighten another 60° or to 150 Nm
• Oil pressure relay - 30
• Valve cover - 2
• Fastening the pump pulley to the camshaft - 35
• Oil radiator - 68
• Drainage tube bracket for the tray - 3
• Oil filter - 14
• Left engine mount:
• Central nut - 35
• Small nuts - 18
• Fastening the central stud to the gearbox - 50
• Right Lower Engine Mounting Bracket - 18
• Right Upper Engine Mounting Bracket:
• Engine mount - 35
• Attachment to the support rubber - 28
• Lower link mount - 35
• Timing Belt Tensioner - 18
• Timing belt idler roller - 18
• Fastening the right engine support rubber to the car body - 40