4.8
Ventilating System
DETROIT DIESEL 53
assemblies should be cleaned if excessive crankcase pressure is observed.
If it is necessary to clean the element, remove the breather housing from the flywheel housing (In-line engines).
Wash the element in fuel oil and dry it with compressed air.
Reinstall the element in the breather housing, the upper front cover or the governor housing and/or the valve rocker
cover and install them by reversing the procedure for removal.
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