ENGINE - V8
26.
Remove worn valve seat.
CAUTION: Take care not to damage the
counterbore in the cylinder head when
removing valve seats.
32.
Check valve installed height if valve seats have
been refaced or renewed.
l Valve installed height, end of valve to base
of spring seat, 'A' = 44.16 to 45.29 mm (1.74
to 1.80 in).
27.
Heat cylinder head evenly to approximately
120
° C (250°F).
WARNING: Handle the hot cylinder head
with care.
28.
29.
Using a suitable mandrel, press new insert fully
into counterbore.
Allow cylinder head to air cool.
CAUTION: Renew worn valve guides and/or
valve seats before lapping the valves.
30.
Recut valve seat in head and lap in valves
using fine paste.
33.
34.
Reface valves as necessary. If a valve has to
be ground to a knife-edge to obtain a true seat,
renew valve.
Cut valve seats using suitable cutters:
l Valve seat angle 'A' = 45°.
l Valve seat insert diameter 'B' Inlet = 36.83
mm (1.45 in).
l Valve seat insert diameter 'B' Exhaust =
31.50 mm (1.24 in).
31.
Coat valve with a small quantity of engineer's
blue, insert valve and press into position
several times without rotating. Seating position
should be in centre of valve face.
l
Seating width 'C' - Inlet = 0.89 to 1.4 mm
(0.035 to 0.055 in).
l
Seating width 'C' - Exhaust = 1.32 to 1.83
mm (0.052 to 0.072 in).
l Angle 'D' = 70° .
l Angle 'E' = 46° to 46° 25'.
l Angle 'F' = 20° .
12-2-66
OVERHAUL
| Categories | Land Rover Defender, Land Rover Discovery II, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1999 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | Discovery Series II |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
(0 votes, average: 0 out of 5)