300Tdi Discovery
04
GENERAL SPECIFICATION DATA
2
INFORMATION
Pistons
Clearance in bore, measured at bottom
of skirt at right angles to piston pin
0,018-0,041 mm
...................................
Piston rings
Number of compression rings
2
..........................................
Number of control rings
1
....................................................
No 1 compression ring
Molybdenum barrel faced
.....................................................
No 2 compression ring
Tapered and marked ’T’ or ’TOP’
.....................................................
Width of compression rings
1,478-1,49 mm
..............................................
Compression ring gap
0,40-0,65 mm
......................................................
Oil control ring width
3,0 mm
.........................................................
Oil control ring rail gap
0,38-1,40 mm
.....................................................
Camshaft
Location
Central
...........................................................................
Bearings
Tin - aluminium
...........................................................................
Number of bearings
5
..........................................................
Drive
Chain 9,52 mm pitch x 54 pitches.
.................................................................................
Tappets
Hydraulic-self-adjusting
...........................................................................
Valves
Length:
Inlet
116,59-117,35 mm
..................................
Exhaust
116,59-117,35 mm
...........................
Seat angle:
Inlet
45
°
to 45 1/2
°
..................................
Exhaust
45
°
to 45 1/2
°
...........................
Head diameter:
Inlet
39,75-40,00 mm
..................................
Exhaust
34,226-34,480 mm
...........................
Stem diameter:
Inlet
8,664-8,679 mm
..................................
Exhaust
8,651-8,666 mm
...........................
Stem to guide clearance:
Inlet
0,025-0,066 mm
..................................
Exhaust
0,038-0,078 mm
...........................
Valve lift (Inlet and Exhaust)
9,49 mm
............................................
Valve spring length fitted
40,4 mm at pressure of 29,5 kg
..................................................
Lubrication
System type
Wet sump, pressure fed
.....................................................................
Oil pump type
Eccentric rotor
...................................................................
Oil pressure
2.75 bar (40 lb/in
2
) at 2500 rev/min with engine at
......................................................................
running temperature
Oil filter-internal
Wire screen, pump intake filter.
................................................................
Oil filter-external
Full flow, self-contained cartridge
...............................................................