Buick Encore: Engine front cover with oil pump replacement
Removal Procedure
- Disconnect the battery negative cable. Refer to Battery Negative Cable
Disconnection and
Connection .
- Set the engine to TDC. Refer to Camshaft Timing Chain Inspection.
- Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
.
- Remove the front wheelhouse liner, right side. Refer to Front Wheelhouse
Liner Replacement (Encore) ,
Front Wheelhouse Liner Replacement (Encore) .
- Remove the air conditioning compressor. Refer to Air Conditioning
Compressor Replacement (LUJ,
LUV) .
- Remove the air conditioning compressor bracket. Refer to Air
Conditioning Compressor Bracket
Removal.
- Remove the crankshaft balancer. Refer to Crankshaft Balancer
Replacement.
- Remove the oil pan. Refer to Oil Pan Replacement.
- Lower vehicle.
- Remove the drive belt tensioner. Refer to Drive Belt Tensioner
Replacement.
- Remove the generator from above. Refer to Generator Replacement (LUV) .
- Remove the water pump pulley and the water pump. Refer to Water Pump
Replacement (LUJ, LUV) .
- Remove the camshaft position actuator solenoid valves. Refer to Camshaft
Position Actuator Solenoid
Valve Removal.
- Loosen the camshaft sprocket bolts until the camshaft position exciter
wheels are free to rotate. Refer to
Camshaft Timing Chain Adjustment.
Fig. 126: M6, M10 Front Cover Bolts And Engine Front Cover
- Remove the 13 engine front cover bolts M6 (1).
- Remove the 2 engine front cover bolts M10 (2).
- Remove the engine front cover (3).
NOTE: Removal of timing chain is necessary to get access to engine
front cover
gasket.
- Remove the camshaft timing chain. Refer to Camshaft Timing Chain
Replacement
Fig. 127: Engine Front Cover Gasket
- Remove the engine front cover gasket (1).
- Remove the intake and exhaust camshaft position sensors from the engine
front cover. Refer to Camshaft
Position Sensor Replacement
Installation Procedure
- Install the intake and exhaust camshaft position sensors to the engine
front cover. Refer to Camshaft
Position Sensor Replacement .
- Clean the engine front cover sealing surfaces on engine block and
cylinder head.
Fig. 128: Sealing Compound Application Areas
NOTE: The thickness of the sealing bead should be 2 mm
(0.0787 in).
- Apply sealing compound to the shown areas (1) and (2). Refer to
Adhesives, Fluids, Lubricants, and
Sealers.
Fig. 129: Engine Front Cover Gasket
NOTE: Mind the guide sleeves.
- Install a NEW engine front cover gasket (1).
- Install the timing chain. Refer to Camshaft Timing Chain Replacement.
Fig. 130: M6, M10 Front Cover Bolts And Engine Front Cover
NOTE: Mind the guide sleeves when installing the engine front
cover. The
complete installation procedure of the engine front cover should not take
longer than 10 minutes.
- Install the engine front cover (3).
- Install the 13 engine front cover bolts M6 (1).
- Install the 2 engine front cover bolts M10 (2).
CAUTION: Refer to Fastener Caution .
- Tighten the 13 engine front cover bolts M6 to 8 N.m (71 lb in).
- Tighten the 2 engine front cover bolts M10 to 35 N.m (26 lb ft).
NOTE: Engine should be adjusted and fixed in TDC position.
- Tighten the camshaft sprockets, install the upper timing chain guide and
remove all special tools. Refer to Camshaft Timing Chain Adjustment.
- Install the 2 camshaft position actuator solenoid valves. Refer to
Camshaft Position Actuator Solenoid
Valve Replacement .
- Install the water pump and the water pump pulley. Refer to Water
Pump Replacement (LUJ, LUV) .
- Install the generator from above. Refer to Generator Replacement (LUV) .
- Install the drive belt tensioner. Refer to Drive Belt Tensioner
Replacement.
- Install the air conditioning compressor bracket. Refer to Air
Conditioning Compressor Bracket
Installation.
- Install the air conditioning compressor. Refer to Air Conditioning
Compressor Replacement (LUJ,
LUV) .
- Install the crankshaft balancer. Refer to Crankshaft Balancer
Replacement.
- Install the drive belt. Refer to Drive Belt Replacement.
- Install the engine mount bracket. Refer to Engine Mount Bracket
Replacement - Right Side.
- Install the engine mount. Refer to Engine Mount Replacement - Right
Side.
- Install the camshaft cover. Refer to Camshaft Cover Replacement.
- Install the air cleaner assembly. Refer to Air Cleaner Assembly
Replacement .
- Raise the vehicle.
- Install the oil pan. Refer to Oil Pan Replacement.
- Install the front wheelhouse liner, right side. Refer to Front
Wheelhouse Liner Replacement (Encore) ,
Front Wheelhouse Liner Replacement (Encore) .
- Lower the vehicle.
- Connect the battery negative cable. Refer to Battery Negative Cable
Disconnection and Connection .
- Fill up engine oil. Refer to Engine Oil and Oil Filter Replacement.
OIL PUMP REPLACEMENT
Removal Procedure
- Remove the engine front cover. Refer to Engine Front Cover with Oil Pump
Replacement.
Fig. 131: Engine Oil Pump Cover And Bolts
- Remove the 8 oil pump cover bolts (1).
- Remove the oil pump cover (2).
Fig. 132: Oil Pump Slide Spring Windings And Engine Front Cover Edge
WARNING: Before removing the spring, cover the spring with a towel
to prevent
the spring from flying and possibly causing damage or personal
injury.
NOTE: Insert the screw driver between the oil pump slide spring
windings (2).
- Protect the engine front cover edge (1) with a suitable piece of
plastic.
- Compress the oil pump slide spring with a screw driver and remove the
oil pump slide spring in
conjunction with the oil pump slide spring pin.
Fig. 133: Locating Engine Oil Pump Components
NOTE: Keep the oil pump components in order to aid in installation.
- Remove the oil pump components in the following order:
- Outer oil pump vane ring (1).
- Oil pump vane rotor (3) and the 7 oil pump vanes (2).
- Inner oil pump vane ring (6).
- Oil pump slide (4) and the 2 oil pump slide seals with the 2 oil pump
slide seal springs (5).
- For cleaning and inspection the oil pump. Refer to Engine Front Cover
and Oil Pump Cleaning
and Inspection.
Installation Procedure
Fig. 134: Oil Pump Components
NOTE: Oil pump slide spring pin, oil pump slide spring and slide
seal and slide
seal spring can be ordered as single parts. All other oil pump components
can only be ordered as a replacement kit.
- Install the oil pump components in the following order:
NOTE: The bore (8) in the oil pump slide must fit smooth-running
and
without clearance to the oil pump slide pivot pin (7).
- Install the oil pump slide (6).
- Install the inner oil pump vane ring (5).
NOTE: Ensure the mark (9) of the oil pump vane rotor (4) points to
the oil
pump cover.
- Install the oil pump vane rotor (4).
NOTE: Ensure the flats (3) on the oil pump vanes (2) point to the
oil pump vane rotor.
- Install the 7 oil pump vanes (2).
- Install the outer oil pump vane ring (1).
Fig. 135: Oil Pump Slide Seal Springs And Grooves
- Install the 2 oil pump slide seals and the 2 oil pump slide seal springs
(2) in the position as shown to the 2
grooves (1) of the oil pump slide.
Fig. 136: Oil Pump Slide Spring, Pin, Chambers And Front Cover Edge
- Protect the engine front cover edge (5) with a suitable piece of
plastic.
NOTE: The length of the removed oil pump slide spring (2) should be
76.5 mm
(3.0118 in) for naturally aspirated engines and 61 mm (2.4016 in) for turbo
engines.
- Install the oil pump slide spring pin (1) in conjunction with the oil
pump slide spring (4). Use a
screwdriver to compress the oil pump slide spring. The flat side of oil pump
slide spring pin must face
upwards.
- Lubricate the oil pump vanes, the oil pump vane rotor, the oil pump
slide spring and the chambers (3)
with engine oil.
- Inspect the oil pump slide spring mechanism for proper function.
Fig. 137: Engine Oil Pump Cover And Bolts
- Install the oil pump cover (2) and the 8 oil pump cover bolts (1).
Fig. 138: Oil Pump Cover Bolts Tightening Sequence
CAUTION: Refer to Fastener Caution
- Tighten the oil pump cover bolts in a sequence as shown to 8 N.m (71 lb
in).
Fig. 139: Crankshaft Balancer
- Install the crankshaft balancer (1) and rotate in shown direction (2) in
order to inspect the function of the
oil pump mechanism. Crankshaft balancer should rotate easily.
- Install the engine front cover. Refer to Engine Front Cover with Oil
Pump Replacement.
READ NEXT:
Engine replacement - Removal Procedure
Remove the battery and battery tray. Refer to Battery Tray Replacement .
Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
Recover the refrig
Removal Procedure
Open hood.
Place a drain pan below the vehicle.
CAUTION: To prevent damage to oil filter cap ensure proper tool is
used. Do not
use an open end wrench which may cause damage to
Turbocharger replacement - Removal Procedure
Special Tools
EN-49942 Holding Wrench
For equivalent regional tools, refer to Special Tools.
Removal Procedure
Disconnect battery negative cable. Refer t
SEE MORE:
Special Tools
CH-51450-NVH Oscilloscope Diagnostic Kit (w/NVH)
EL-38792-A Electronic Vibration Analyzer (EVA) 2
EL-38792-25 Inductive Pickup Timing Light
EL-47955 Multi Diagnostic Interface MDI
For equivalent regional tools, refer to Special Tools and Equipment.
Test Description
The numbers be
WIPER/WASHER SYSTEM DESCRIPTION AND OPERATION
Wiper/Washer System Components
The wiper/washer system consists of the following electrical components:
Windshield Wiper Relay
Windshield Wiper Speed Control Relay
Windshield Washer Pump Relay
Windshield Washer Pump
Windshield Wiper Motor
Windshie