Chevrolet Equinox Service Manual: Crankcase Ventilation System Description Emissions PCV
A crankcase ventilation system is used to consume crankcasevapors created during the combustion process instead of ventingthem to the atmosphere.
Fresh air is supplied through a filter to the crankcase, thecrankcase mixes the fresh air with the blow-by gases and thenpassed through a positive crankcase ventilation-(PCV)orificed tube into the intake manifold.
The PCV orificed tube restricts the flow rate of the blow-bygases using an orifice-(1) located at the end of thetube. If abnormal operating conditions arise, the system isdesigned to allow excessive amounts of blow-by gases to back flowthrough the crankcase vent tube into the throttle body in order tobe consumed by normal combustion.
Engine
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Adhesives, Fluids, Lubricants, and Sealers
Adhesives, Fluids, Lubricants, and SealersApplicationType of MaterialGM Part NumberUnited StatesCanada#-6 Intake Rear Camshaft CapSealant1237852188901148Balance Shaft Bearings5W-301929300019286321Cam ...
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Crankshaft Balancer Cleaning and Inspection Engine Block Cylinder Block Crankshaft
Clean the crankshaft balancer-(1).Clean the belt grooves of all dirt or debris with a wirebrush.Warning:Refer toSafety Glasses Warning.Dry the crankshaft balancer with compressed air.Inspect the crankshaft balancer for the following:Worn, grooved, or damaged hub seal surfaceA crankshaft balancer hub ...