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TO BE REMEMBERED WHEN ENGINE IS INSPECTED
Cylinder Covers and Cover Fittings
If the covers have been dismounted, it must always be checked whether they are leaking. Press the
fuel pumps to the bottom when engine is idling; if there are any leakages, a whistling sound will be
heard which is caused by the explosions going through the copper packings. In this case the cylinder
cover must be retightened or the cylinder head gasket must be exchanged. Cylinder cover mounting
instructions - see 7-49.
Valves
Check and adjust the valves (see 7-45).
As to grinding of valves and valve seats - see 7-6.
Starting Valves
Check whether the starting valves are leaking. If there have been starting difficulties and one or more
starting valves have coked, see to it that all pipes in the starting air system and all air distributor
cover ducts are open; if necessary, dismount the pipes for annealing and cleaning.
If it is impossible to tighten all starting valves completely, blank off the valve in question by mounting
a copper disc (or a coin without hole) between the fitting and the cylinder head hole to avoid getting
coke into the other valves.
Repair instructions - see 7-60.
Charging Valve
Check whether the valve shaft is tight against the fitting in top. Adjust if necessary. Maximum turn of
the spindle is 3/4 of a turn (see 7-129).
Filters
Check fuel and lubricating oil filters as well as air filters frequently (see "Maintenance of CALLESEN
diesel engines", 7-95).
Crank Bearings
When dismounting the crank bearings for inspection (see 7-14), check also whether all crank plugs
are tight.
Camshaft
Check the adjustment and lift of the fuel pumps (see 7-45). If the adjustment is incorrect, call in
skilled assistance. Check the adjustment of the air distributor (see 7-63).
7-16-2A
Callesen Diesel
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