L322 Range Rover Service Procedures
ENGINE - V8
OVERHAUL 12-2-87
Inspect
1. Clean mating faces of cylinder head and
cylinder block, dowels and dowel holes. If
necessary remove all traces of sealing
compound with hard wood scraper. Ensure
remnants do not remain in oil ways cooling
ducts or bolt holes.
CAUTION: Make sure no oil or coolant is left
in the cylinder head bolt holes as damage to
the cylinder block may occur when
tightening the cylinder head bolts.
2. Using a straight edge and feeler gauges, check
cylinder head for distortion along lines shown in
illustration.
Reassembly
1. Fit new 'O' ring to cylinder block.
2. Apply sealant STC 50550 to areas illustrated.
3. Fit new cylinder head gasket to locating dowels
on cylinder block.
4. With assistance, fit cylinder head and carefully
position cylinder head onto dowels.
5. Fit cylinder head bolt washers and new cylinder
head bolts. Tighten cylinder head bolts in
sequence shown to 30 Nm (22 lbf.ft). Using an
angle torque gauge tighten all bolts in
sequence by 80
°
and then a final 80
°
.
NOTE: Do not remove special coating from
new cylinder head bolts.
Refit
1. Fit bolt securing LH timing chain guide and
tighten to 10 Nm (7 lbf.ft).
2. Carefully rotate camshafts until letter and
cylinder number markings located on rear of
camshafts are in an upright position.
3. Loosen bolt securing LRT-12-223/4 to LRT-12-
223/3.
M12 7637