V8 Engine 3.5 3.9 4.2
ENGINE
OVERHAUL
35
Camshaft and tappets - refit
1. Lubricate camshaft journals with clean engine
oil and carefully insert camshaft into cylinder
block.
2. Fit camshaft thrust plate - if fitted, ensuring that
it is correctly located in camshaft groove. Fit
bolts and tighten to 25 Nm (18 lbf.ft).
NOTE: If camshaft or thrust plate has been
replaced, it will be necessary to re-check
camshaft end-float.
3. Immerse tappets in clean engine oil. Before
fitting, pump the inner sleeve of tappet several
times using a push rod, to prime tappet and
reduce tappet noise when engine is first
started.
4. Lubricate tappet bores with clean engine oil
and fit tappets in removed order.
NOTE: Some tappet noise may be evident
on initial start-up. If necessary, run the
engine at 2500 rev/min for a few minutes
until noise ceases.
5. Fit timing chain and gears.
6. Fit rocker shaft assemblies.
PISTONS, CONNECTING RODS, PISTON RINGS
AND CYLINDER BORES
Pistons and connecting rods - remove
1. Remove cylinder head(s).
2. Remove big-end bearings.
3. Remove carbon ridge from top of each cylinder
bore.
4. Suitably identify each piston to its respective
cylinder bore.
5. Push connecting rod and piston assembly to
top of cylinder bore and withdraw assembly.
6. Repeat above procedure for remaining pistons.
CAUTION: Big-end bearing shells must be
replaced whenever they are removed.
