ENGINE
Cylinder bore - inspection
Pistons - refit
CAUTION: On later 4.2L engines the piston
has a 0.5 mm offset gudgeon pin which
can be identified by an arrow mark on the
piston crown. This arrow MUST always point to
the front of the engine.
1.
Measure cylinder bore wear in two axis 40 to
mm from top of bore.
Piston to cylinder bore clearance = 0.018 to
50
1.
4.2L engine only: Assemble pistons to
connecting rods with arrow on piston pointing
towards domed shaped boss on connecting
rod for RH bank of cylinders, and arrow
pointing away from dome shaped boss for LH
bank of cylinders.
0.033
mm.
NOTE: Pistons are available in service
standard size and 0.508 mm oversize.
Service standard size pistons are supplied
mm oversize. When fitting new service
0.0254
standard size pistons, check for correct piston to
bore clearance, hone bore if necessary.
CAUTION: The temperature of piston and
cylinder block must be the same to ensure
accurate measurement. When reboring
cylinder block, the crankshaft main bearing caps
must be fitted and bolts tighten to correct
torque.
2.
If only new piston rings are to be fitted, break
cylinder bore glazing using a fine grit, to
produce a 60° cross-hatch finish.
CAUTION: Ensure all traces of grit are
removed after above operation.
2.
3.
Clamp hexagon body of LRT-12-013 in vice.
Remove large nut and pull the centre screw 50
mm out of hexagon body.
4.
5.
6.
7.
Locate piston adapter LRT-12-014 with its long
spigot inside bore of hexagon body.
Fit parallel sleeve, grooved end last, up to
shoulder on centre screw.
Lubricate gudgeon pin and bores of connecting
rod and piston with graphited oil.
Locate connecting rod and piston to centre
screw with connecting rod entered on sleeve
up to groove.
Connecting rod - inspection
Check alignment of connecting rod.
1.
OVERHAUL
23
| Categories | Land Rover, Land Rover Discovery |
|---|---|
| Tags | Land Rover |
| Model Year | 1996 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | 3.5, 3.9 and 4.2 Litre V8 engines |
| Product Brand | Land Rover |
| Engine Manufacturer | Rover Group |
| Engine Motor Size | 3.5L, 3.9L, 4.2 Litre |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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