2002 LAND ROVER DISCOVERY engine

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Page 305 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
12-2-62 OVERHAUL
Cylinder head - overhaul 
$% 12.29.19.01 
Disassembly
1.Remove cylinder head gasket. 
 
 +  ENGINE - V8, OVERHAUL, Gasket - 
cylinder head.
2.Loosen screw on tool LRT-12-0

Page 306 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
OVERHAUL 12-2-63
6.Remove carbon deposits from exhaust  valve 
guide using a 8.70 mm (0.34 in) diameter 
reamer  inserted from combustion face side of  
cylinder head. 
NOTE: Modified inle

Page 307 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
12-2-64 OVERHAUL
10.Check the following valve dimensions. Renew 
valves  as  necessary. 
lValve head diameter A: Inlet = 39.75  to 
40.00 mm (1.56 to 1.57 in).
lValve head diameter A:

Page 308 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
OVERHAUL 12-2-65
20.Lubricate new valve guide with engine  oil and 
with tapered portion of guide leading, insert 
guide from valve spring side of head.  
Note: Service valve guides are 0.

Page 309 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
12-2-66 OVERHAUL
31.Check valve installed height if valve seats  have 
been refaced or renewed. 
lValve installed height, end of valve to base 
of spring seat, A = 44.16 to 45.29 mm (1.7

Page 310 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
OVERHAUL 12-2-67
Piston assemblies
$% 12.17.02.01 
Disassembly
1.Remove cylinder head. 
 
 +  ENGINE - V8, OVERHAUL, Gasket - 
cylinder head.
2.Remove oil pick-up strainer
 
 +  ENGINE - V

Page 311 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
12-2-68 OVERHAUL
Inspect
1.Clean carbon from piston. Inspect  piston for 
distortion, cracks and burning.
2.Remove piston rings from piston.
3.Measure and record piston diameter at  90
°

Page 312 of 1672

LAND ROVER DISCOVERY 2002  Workshop Manual ENGINE - V8
OVERHAUL 12-2-69
3.Clamp hexagon body of tool LRT-12-013  in 
vice. 
4.Loosen large nut and pull the centre  screw 50 
mm (2 in) out of hexagon body. 
5.Fit piston adapter tool LRT-12-126/