Land Rover 3 5 3 9 4 2 V8 Engine Overhaul 1997 Rover Manual

ENGINE
44
OVERHAUL 7.
Bolts fitted in connecting rods:Fit a length of
plastic tubing over each connecting rod bolt.
8.Push each piston up its respective bore,
remove and discard shells from connecting
rods.
NOTE: Big-end bearing shells must be
replaced whenever they are removed.Big-end bearings - refit
1.Fit new bearing shells to each connecting rod.
NOTE: Big-end bearings are available in
0.254 and 0.508 mm (0.01 and 0.02 in)
oversizes.
2.Lubricate bearing shells and crankshaft
journals with engine...

ENGINE
OVERHAUL45
8.Check clearance between connecting rods on
each crankshaft journal.
Connecting rod clearance = 0.15 to 0.37 mm
(0.006 to 0.01 in).
9.Clean oil strainer.
10.Clean gasket mating faces on strainer and
cylinder block.
11.Fit gasket to strainer, position strainer, fit bolts
and tighten to 10 Nm (7 lbf.ft).
12.Fit sump.Crankshaft - remove
1.Remove flywheel or drive plate and ring gear
assembly.
2.Remove timing cover.
3.Remove timing gears.
4.Remove big-end bearings.
5.Make suitable...

ENGINE
46
OVERHAUL Crankshaft - inspection
1.Clean crankshaft and blow out oil passages.
2.Support crankshaft front and rear bearing
journals on vee blocks, and using a DTI,
measure run-out on centre main bearing.
Maximum permitted run-out = 0.08 mm (0.003
in)
If run-out exceeds permitted maximum,
crankshaft is unsuitable for regrinding and
should be replaced.3.Measure each journal for overall wear and
ovality, make 3 checks at 120°intervals.
Main bearing journal diameter = 58.409 to
58.422 mm (2.29 to...

ENGINE
OVERHAUL47
Crankshaft dimensions:
Bearing journal radius - all journals except rear main
journalA= 1.90 to 2.28 mm (0.075 to 0.09 in).
Rear main bearing journal radiusB= 3.04 mm
(0.012 in)
Bearing journal diameterC:
Standard = 58.409 to 58.422mm (2.29 to 2.3 in).
0.254 mm (0.01 in) undersize = 58.154 to 58.168
mm (2.290 to 2.300 in)
0.508 mm (0.02 in)undersize = 57.900 to 57.914 mm
(2.280 to 2.281 in)
Bearing journal widthD= 26.975 to 27.026 mm
(1.062 to 1.064 in).
Bearing journal diameterE:...

ENGINE
48
OVERHAUL Crankshaft - refit
1.Clean main bearing caps, bearing shell
recesses and mating surfaces of cylinder
block.
CAUTION: Ensure main bearing cap bolt
holes in cylinder block are clean and dry.
2.Fit new upper main bearing shells, with oil
holes and grooves, in cylinder block, ensuring
flanged shell is fitted in centre position.
3.Lubricate main bearing shells with engine oil
and position crankshaft in cylinder block.
4.Fit new main bearing shells to bearing caps
and lubricate with engine...

ENGINE
OVERHAUL49
11.Clean seal location and running surface on
crankshaft.
12.
Engine numbers without suffix B:Clean seal
protectorLRT-12-010and lubricate with engine
oil.
13.
Engine numbers with suffix B:Clean seal
protectorLRT-12-095and lubricate with engine
oil.
14.Lubricate oil seal lip with engine oil.
NOTE: Seal protector LRT-12-095
illustrated.
15.Position seal protector to crankshaft.
16.
Engine numbers without suffix B:Fit oil seal
squarely using hand pressure only until fully
seated in...

ENGINE
50
OVERHAUL Crankshaft end - float - check
1.Set-up DTI to measure end float.
2.Move crankshaft forwards and zero gauge.
3.Move crankshaft rearwards, record end-float
reading obtained.
Crankshaft end-float = 0.10 to 0.20mm (0.004
to 0.008 in).
4.Remove DTI.
NOTE: Crankshaft end-float is controlled
by thrust faces on upper half of centre
main bearing shell.