Freelander Service Procedures
GENERAL DATA
04-8
Pistons
Type
Aluminium alloy, tin plated, thermal expansion with offset gudgeon pin
Piston diameter:
⇒
Grade A
79.975 - 79.990 mm (3.1486 - 3.1492 in.)
⇒
Grade B
79.991 - 80.005 mm (3.1492 - 3.1498 in.)
Clearance in bore
0.01 - 0.04 mm (0.0004 - 0.0016 in.)
Maximum ovality
0.30 mm (0.012 in.)
Piston rings:
Type:
2 compression, 1 oil control
⇒
Top compression ring
Barrel faced, granulite coated
⇒
2nd compression ring
Tapered, phosphate coated
⇒
Oil control ring
Nitrided ring with radii and spring
New ring to groove clearance:
⇒
Top compression ring
0.040 - 0.072 mm (0.0016 - 0.0028 in.)
⇒
2nd compression ring
0.030 - 0.062 mm (0.0012 - 0.0024 in.)
⇒
Oil control ring
0.010 - 0.180 mm (0.0004 - 0.0071 in.)
Ring fitted gap 20 mm (0.75 in) from top of bore:
⇒
Top compression ring
0.20 - 0.35 mm (0.008 - 0.014 in.)
⇒
2nd compression ring
0.28 - 0.48 mm (0.011 - 0.019 in.)
⇒
Oil control ring
0.15 - 0.40 mm (0.006 - 0.016 in.)
Piston ring width:
⇒
Top compression ring
0.978 - 0.990 mm (0.0385 - 0.0390 in.)
⇒
2nd compression ring
1.178 - 1.190 mm (0.0464 - 0.0469 in.)
⇒
Oil control ring
0.33 - 0.38 mm (0.0130 - 0.0150 in.)
Camshaft
Type
DOHC acting directly on tappets, incorporates target/reluctor for
camshaft sensor
Bearings
6 per camshaft, direct line bored
Drive
Toothed belt driven from crankshaft gear, automatically tensioned
Camshaft end-float
0.06 - 0.19 mm (0.002 - 0.007 in.)
⇒
Service limit
0.30 mm (0.012 in.)
Bearing clearance
0.060 - 0.094 mm (0.0024 - 0.0037 in.)
⇒
Service limit
0.15 mm (0.006 in.)
Tappets
Type
Self-adjusting lightweight hydraulic tappets, operated directly from
camshafts
Tappet outside diameter
32.959 - 32.975 mm (1.2976 - 1.2982 in.)
Valve timing:
Inlet valves:
⇒
Opens
⇒
Closes
⇒
Maximum lift
12
°
BTDC
52
°
ABDC
8.8 mm (0.35 in.)
Exhaust valves:
⇒
Opens
⇒
Closes
⇒
Maximum lift
52
°
BBDC
12
°
ATDC
8.8 mm (0.35 in.)
General
