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Land Rover Defender 1999 2002my Workshop Supplement Body Repair 3rd Edition Rover Manual

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Page 191

12ENGINE
32
OVERHAUL
8.Carefully move connecting rod to one side of
journal and using feeler gauges, measure
end-float of connecting rod on journal:
Connecting rod end-float =0.2 to 0.5 mm
(0.008 to 0.021 in).
CAUTION: If end-float exceeds limits
given, replace connecting rod and repeat
end-float check - See pistons, connecting
rods and cylinder bores.
9.Repeat above procedures for remaining big-end
bearings.
10.Fit oil pump.See this Section.PISTONS, CONNECTING RODS AND CYLINDER
BORES
Service repair no -...

Page 192

ENGINE
33
OVERHAUL Cylinder bores - Inspection
1.Check cylinder bores for scoring.
2.Measure cylinder bore wear and ovality at a
point 70 mm (2.75 in) from top of each cylinder
bore:
Cylinder bore diameter =84.460 to 84.442 mm
(3.325 to 3.324 in)
CAUTION: Measurement must be taken
from side to side and front to rear of bore:
CAUTION: Cylinder bore diameter and
ovality must be within limits given above,
no reboring, honing or glaze busting of
cylinder bores is permissible; cylinder block must
be replaced...

Page 193

12ENGINE
34
OVERHAUL
5.Starting with No. 1 piston, invert piston and with
arrow on piston crown pointing towards REAR of
cylinder block, insert piston into No. 1 cylinder
bore.
6.Position piston with bottom of skirt 25 mm (1.0
in) from top of cylinder bore.
7.Using feeler gauges, measure and record
clearance between piston skirt and LEFT HAND
side of cylinder bore 60 mm (2.4 in) from top of
bore:
Piston to cylinder bore clearance =0.171 to
0.207 mm (0.007 to 0.008 in)
8.Repeat above procedures for...

Page 194

ENGINE
35
OVERHAUL Piston ring gaps - Checking
1.Insert new compression and oil control piston
rings in turn into No. 1 cylinder bore 30 mm (1.25
in) from top of bore and check ring fitted gaps;
ensure rings are kept square to bore when
checking gaps.
1st compression ring fitted gap =0.30 to 0.40
mm (0.012 to 0.016 in)
2nd compression ring fitted gap =0.40 to 0.60
mm (0.016 to 0.024 in)
Oil control ring fitted gap =0.25 to 0.50 mm
(0.01 to 0.02 in)
Repeat for each cylinder bore in turn.
CAUTION: Ensure...

Page 195

12ENGINE
36
OVERHAUL 9.Check that the cut-out in piston skirt is
positioned above the oil squirt jet.
10.Repeat for other pistons in turn ensuring that
pistons and connecting rods are fitted in cylinder
bores from which they were removed.
11.Fit connecting rod bearings.See this Section.
CAUTION: If new pistons, connecting rods
or crankshaft have been fitted, it will be
necessary to select correct thickness of
cylinder head gasket.See this Section.CRANKSHAFT
Service repair no - 12.21.33.01
Remove
1.Remove...

Page 196

ENGINE
37
OVERHAUL
6.Fit 2 slave bolts into each main bearing cap in
turn and ease bearing caps from cylinder block.
7.Remove and discard bearing shells from each
cap.
NOTE: These bearing shells are plain.
8.Using assistance, remove crankshaft.
9.Remove and discard main bearing shells and 2
thrust washers from cylinder block.
NOTE: These bearing shells are grooved.
10.Remove Torx screw securing each oil squirt jet
to cylinder block, remove squirt jets.Cylinder block - Inspection
1.Clean main bearing...

Page 197

12ENGINE
38
OVERHAUL Crankshaft spigot bush
1.Check crankshaft spigot bush for wear, replace if
necessary using the following procedures:
2.Secure crankshaft in a suitably padded vice.
3.Tap a thread in spigot bush to accommodate a
suitable impulse extractor.
4.Fit impulse extractor to spigot bush.
5.Remove spigot bush.
6.Clean spigot bush recess in crankshaft.
7.Fit new spigot bush to crankshaft using a
suitable mandrel.
Crankshaft - Refit
1.Fit oil squirt jets, fit Torx screws and tighten to8
Nm (6...

Page 198

ENGINE
39
OVERHAUL 

Page 199


				            

Page 200

17 - EMISSION CONTROL
CONTENTS
Page
DESCRIPTION AND OPERATION
EGR SYSTEM COMPONENTS - TYPE 1 2............................................................
EGR SYSTEM COMPONENTS - TYPE 2 4............................................................
EMISSION CONTROL SYSTEMS 6.......................................................................
CRANKCASE EMISSION CONTROL 7..................................................................
EXHAUST GAS RECIRCULATION...
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