V8 Engine 35 39 42 > Valve Seat Inserts Renewal
ENGINE
OVERHAUL
11
Valve seat inserts - inspection
1. Check valve seat inserts for pitting, burning
and wear. Replace inserts as necessary.
Valve seat inserts - renew
NOTE: Service valve seat inserts are
available 0.025 mm (0.001 in) oversize on
outside diameter to ensure interference fit.
1. Remove worn valve seats.
CAUTION: Take care not to damage
counterbore in cylinder head.
2. Heat cylinder head evenly to approximately
120
°
C (250
°
F).
WARNING: Handle hot cylinder head with
care.
3. Using a suitable mandrel, press new insert fully
into counterbore.
4. Allow cylinder head to air cool.