Hatz 2-4L30 Workshop Manual page 88

Note:
– To check the lapped valve seats, clean
and install the valves, then pour a small
quantity of diesel oil into the inlet and
exhaust ports.
No diesel oil should seep through past
the valve seats.
– Note correct valve recess measurement;
see Fig. 90 and Section 4.
Assembling cylinder head:
The cylinder head is assembled by follo-
wing the removal procedure in the reverse
order.
Before pressing on the valve stem seals,
insert the valves into the valve guides.
Press the seals on with assembly tool - 7 -.
3
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