Workhorse W Series User Manual

WORKHORSE CUSTOM CHASSIS
Service Manual
W SeriesWCC
SECTION
6.2
PAGE
51
Engine Mechanical
W Series Chassis
TOC
© 2006 WorkhorseCustom Chassis — All Rights Reserved
CRANKCASE VENTILATION SYSTEM DESCRIPTION L18 (8.1L) ENGINE
The crankcase ventilation system utilizes a fi xed orifi ce in the intake manifold and has no serviceable components
so routine maintenance of the system is not required.
A closed crankcase ventilation system is used in order to provide a more complete scavenging of crankcase vapors.
The air cleaner supplies the fresh air through a fi lter to the crankcase. The crankcase mixes the fresh air blow-by
gases. This mixture then passes through a pipe/passage located in the intake manifold.
Crankcase Ventilation System Inspection/Diagnosis
A plugged positive crankcase ventilation (PCV) pipe/passage way may cause:
• Rough idle
• Stalling or slow idle speed
• Oil leaks
• Sludge in the engine

Workhorse W Series Specifications

General

Brand	Workhorse
Model	W Series
Category	Engine
Language	English