Discovery I (LJ) V8-4.0L (1996)
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2. Fit new split pin to one end of rocker shaft.
3. Fit plain washer and wave washer.
4. Lubricate rocker arm bushes with engine oil.
5. Fit rocker arms with offsets as illustrated.
6. Assemble rocker arms, brackets and springs to rocker shaft.
7. Compress springs, fit wave washer, plain washer and secure with new split pin.
Rocker shafts - refit
1. Lubricate pushrods with engine oil.
2. Fit pushrods in removed order.
3. Fit each rocker shaft assembly, ensuring identification groove is uppermost and towards front of engine on RH side and towards rear of engine on
LH side.
CAUTION: Incorrect fitment of rocker shafts will lead to an oil feed restriction.
4. Fit bolts and starting at centre brackets, tighten to 38 Nm (28 ft. lbs.).
5. Clean gasket surface in rocker cover.
NOTE: Gaskets fitted to early engines were manufactured from cork whilst those fitted to later engines are manufactured from rubber. The later
type gaskets should be fitted as replacements to all engines. Cork gaskets were retained by an adhesive whereas rubber gaskets do not need an
adhesive. If cork gaskets were originally fitted, remove all traces of adhesive using Bostik Cleaner 6001 or equivalent.
6. Fit new gasket, dry to rocker cover.
7. Fit rocker cover to cylinder head, fit bolts and tighten in diagonal sequence to:
Stage 1 - 4 Nm (3 ft. lbs.)
Stage 2 - 8 Nm (6 ft. lbs.)
Stage 3 - Re-torque to 8 Nm (6 ft. lbs.)
CAUTION: The 2 short bolts must be fitted on side of cover nearest centre of engine.
8. LH rocker shaft only:Align dipstick tube to rocker cover, fit and tighten screw.
