Refacing Valve Seat Inserts for 300Tdi Engine Cylinder Head
ENGINE
OVERHAUL
23
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. Position distance piece, tool LRT-12-515 and
valve guide replacer LRT-12-046 to valve
guide.
8. Press valve guide into cylinder head until
distance piece contacts face of head; remove
tools.
9. Allow cylinder head to air cool.
Valve seat inserts - refacing
CAUTION: Prior to refacing valve seats,
check valve head stand down. If, after
refacing, valve head stand down will be
below limits, seat inserts must be replaced.
1. Support cylinder head on its side on suitable
blocks of wood.
2. Loosely assemble pilot, tool LRT-12-502 and
a suitable expandable collet, ensuring that
chamfered end of expander is towards the
collet.