Workshop Manuals Factory service & repair Land Rover
01 3.5, 3.9 & 4.2 V8 Engine Overhaul Manual - 2nd Edition02 03 04 05 INFORMATION06 07 08 GENERAL DATA09 10 11 12 TORQUE WRENCH SETTINGS13 14 SERVICE TOOLS15 16 17 18 19 DESCRIPTION AND OPERATION20 21 22 23 OVERHAUL
Land Rover V8 Engine 3.5 3.9 4.223 · OVERHAUL
23 · General

Valves, valve springs and guides - inspection

Make
Land Rover
Model
Engines V8 Engine 3.5 3.9 4.2
Section
Valves, valve springs and guides - inspection
OVERHAULValves, valve springs and guides - inspection · page 1 of 3
background image

ENGINE

OVERHAUL

7

4. Check cylinder head height at each end of

cylinder head:

Engine numbers without suffix B
A
= 23.9 mm (0.94 in) - new
B= 63.5 mm (2.5 in) - new

Engine numbers with suffix B
A
= 22.94 mm (0.903 in) - new
B= 62.56 mm (2.463 in) - new

5. Cylinder heads may be refaced:

Reface limit = 0.50 mm ( 0.02 in) from new
dimension.

Valves, valve springs and guides - inspection

NOTE: Two types of exhaust valve may be
fitted - standard valves A in illustration or
carbon break valves - B in illustration.

Carbon break valves may be identified by the
machined profile C on the valve stem. To prevent
exhaust valves sticking, standard exhaust valves
should be replaced with carbon break valves
during engine overhaul.

NOTE: Modified inlet valves, carbon break
exhaust valves and valve guides are fitted
to later engines. The modified exhaust

valves may be identified by measuring the
distance A from the valve head face to the top of
the undercut on the valve stem. Additionally, the
exhaust valves have a black nitrided finish whilst
the inlet valves have a chrome finish.

Parts & tools for this job Staging For Land Rover Engines

Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.