ENGINE
Valve seat inserts - renew
Valve seats and seat inserts - refacing
NOTE: Service valve seat inserts are
available 0.025 mm (0.001 in) oversize on
outside diameter to ensure interference fit.
CAUTION: Renew worn valve guides and
seat inserts before lapping valves to their
seats.
1.
Remove worn valve seats.
1. Check condition of valve seats and valves that
are to be re-used.
CAUTION: Take care not to damage
counterbore in cylinder head.
2. Remove carbon from valve seats.
3.
Reface valves as necessary. If a valve has to
be ground to a knife-edge to obtain a true seat,
fit a new valve.
Valve seating face angle A = 45°
2.
Heat cylinder head evenly to approximately
120° C (250° F).
WARNING: Handle hot cylinder head with
care.
3.
4.
Using a suitable mandrel, press new insert fully
into counterbore.
Allow cylinder head to air cool.
10
OVERHAUL
| Categories | Land Rover, Land Rover Defender, Range Rover |
|---|---|
| Tags | Land Rover |
| Model Year | 1999 |
| Download File |
|
| Product Name | Range Rover 4.0 & 4.6 Litre, Defender V8i |
| Product Brand | Land Rover |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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