1995 LAND ROVER DISCOVERY engine

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Page 916 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
OVERHAUL21
Valve springs - inspection
1.Check free length of each spring = 46.28 mm
2.Check that end coils of each spring are square
to body of spring.Valves and guides - inspection
1.Remove ca

Page 917 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
22
OVERHAUL
8.Insert a new valve into each guide in turn and
with head of valve positioned 8.0 mm above
seat insert, measure side to side movement of
valve head using a suitable DTI.
Maximum va

Page 918 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
OVERHAUL23
5.Position cylinder head on bed of hand press.
6.Position replacement valve guide to cylinder
head, ensuring that groove for valve stem seal
is facing away from cylinder head.
7.Posi

Page 919 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
24
OVERHAUL
3.Lightly lubricate the tool with engine oil.
4.Insert pilot into valve guide from combustion
chamber side of cylinder head until shoulder of
pilot contacts guide.
5.Check that coll

Page 920 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
OVERHAUL25
9.Cut valve seat insert using light hand pressure.
CAUTION: Remove the minimum amount
of material necessary to obtain correct
valve seat face.
10.Smear Prussian Blue to seating face

Page 921 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
26
OVERHAUL Lapping-in valves
1.Lap each valve to its seat using grinding paste.
2.Apply Prussian Blue to valve seat insert. Insert
valve into guide and press it firmly, without
rotating on to

Page 922 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
OVERHAUL27
Valves and springs - refit
1.Lubricate valve stems, guides, spring seats,
valve springs, spring cups and collets with
engine oil.
2.Lubricate new valve stem oil seals with engine
oil

Page 923 of 976

LAND ROVER DISCOVERY 1995  Service Repair Manual ENGINE
28
OVERHAUL 6.From all of the readings obtained, determine
highest protrusion figure and select the
appropriate cylinder head gasket.
Protrusion 0.50 to 0.60 mm - select gasket with
1 identific