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KD 477-2 Workshop Manual_cod. ED0053029370_1° ed_ rev. 00
XIV
90
89
88
91
0,15 mm
intake/exhaust
Checking oil pressure
1
. Remove union from rocker oil hole and t a pressure gauge gra-
ded from 0 to 8 kg/cm² (g. 90).
2
. Start engine and run up to 3000 RPM. Wait for the oil temperatu-
re to reach 70 to 80°C.
3
. With engine idling at 3000 RPM the pressure gauge needle
should be slightly over half way corresponding to a pressure of 3
to 4 kg/cm².
Said pressure will stabilize at 2 to 3 kg/cm² when engine runs at
full load and the oil temperature exceeds 70 to 80°C.
4
. Reduce revs to minimum. The pressure should not fall to under 1
kg/cm² with the oil temperature exceeding 80°C.
Checking for oil leaks
1
. Remove exhaust gas collection pipe from suction manifold and
close with a plug (g. 91).
2
. Start engine and run for a few minutes. The pressure which
forms inside the crankcase bring out any oil leaks.
3
. Re-t gas collection pipe to suction manifold.
5. Re-t rocker covers and sealing gaskets.
ENGINE TESTING
Speed adjustment
1
. With engine hot set minimum speed at 1000 RPM (g. 88) and
maximum to idle (g. 89) at:
3150 RPM for engines at 3000 rpm
3750 RPM for engines at 3600 rpm
2
. Then stop the engine.
3. Remove injectors, clean nozzle holes carefully, check setting and
re-t.
4
. Adjust clearance between valves and rockers, while engine is
hot, to:
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