HATZ Diesel 1D90W - Manual (Page 21)

– Wet the thread and the O-ring of the drain plug
with lubricant „K“ (see spare parts list).
– Add engine oil up to the „max“ mark on the
dipstick (see Chapter 4.1.1.).
– Run the engine for a short period, then check
the oil level again and top up if necessary.
– Check that there is no leakage past screw plug
on the oil filter housing.
5.3.2. Checking and adjusting
valve clearances
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– Unscrew cover „1“ and take off together with
gasket „2“. Never re-use this gasket.
– Turn the engine over in the normal direction of
rotation until compression is felt.
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– Check valve clearances between rocker and
valve stem, using feeler gauge „1“; (see
Chapter 3.1.).
– If valve clearance is incorrect, slacken off hex.
nut „2“.
– Turn adjusting screw „3“ with a screwdriver
until feeler gauge „1” can just be pulled
through between the rocker and the valve stem
with slight resistance to its movement after
nut „2“ has been retightened.
– Attach the cover at the cylinder head again and
tighten down uniformly.
– Run the engine briefly and check that the
cover is not leaking.
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