Valve Spring And Stem Seal Replacement: Installation

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: After cylinder head, block or lifter replacement, it will be necessary to allow the engine to idle for three to five minutes. If lifters are noisy, warm the engine up at a low RPM (less than 2,000). After coolant temperature has reached approximately 85°C (185°F), cycle the engine RPM from idle to 3,000 RPM for approximately 10 minutes or drive the vehicle 8 kilometers (5 miles) to purge the air. If air cannot be purged, the faulty lifters will have to be replaced. Lifters that are pumped up may cause PCM misfire codes to set. Continue to operate the engine until the lifters bleed down. Use a Scan tool to clear codes and malfunction history.

NOTE: If valve stem seals are removed, they must be discarded. The valve stem lock groove will cut the seal's lip during removal. Use extreme care not to damage valve stems when installing retainers.

IMPORTANT: Before each valve stem seal is installed, oil the valve stem seal and guide. If a valve stem seal is removed, it must be discarded.

Inspect valve stem for scratches, scores, and scuffs. Spray valve stem and guide with clean lubricating oil to remove any debris that may be present on valve stem or top of guide.
Oil valve guide and valve stem. Install valve stem oil seal with service tool SA9102E.

Fig 1: Inspecting Valve Stem For Scratches, Scores And Scuffs
Courtesy of GENERAL MOTORS CORP.

Fig 2: Installing Valve Stem Oil Seal With Service Tool
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Install valve spring caps.

Fig 3: Installing Valve Spring Caps
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Install valve springs.

Fig 4: Installing Valve Springs
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Install valve retainers and remove Gauge Bar Set SA9127E.
Install Gauge Bar Set SA9127E and pressurize any additional cylinders that require service.
Complete steps 1-6 as necessary.

Fig 5: Installing Valve Retainers And Removing Gauge Bar Set
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Remove Gauge Bar Set SA9127E.
Remove Valve Spring Compressor J43649.

Fig 6: Removing Gauge Bar Set
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Install lubricated lash adjusters in their correct locations.

Fig 7: Installing Lubricated Lash Adjusters
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Install rocker arms (followers).

Fig 8: Installing Rocker Arms
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Lubricate camshaft bearing journals with clean engine oil and install both camshafts.
When installing camshafts, attempt to position camshaft slot in line with notch on sprockets.
Install all bearing caps except for front cap and rear intake camshaft cap (if serviced). Tighten down bearing cap uniformly.
Torque:

Camshaft Bearing Cap Bolts: 10 N.m (89 in-lbs)

Fig 9: Installing Bearing Caps
Courtesy of GENERAL MOTORS CORP.

NOTE: Verify timing chain is properly positioned on the fixed guide or guide damage will occur.

IMPORTANT: Ensure that alignment slots are correctly aligned with notches in camshaft sprockets before final torque is applied.

IMPORTANT: Verify camshafts are properly timed as outlined in this section prior to starting engine.

Fig 10: Aligning Alignment Slots With Notches In Camshaft Sprockets
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Slide camshaft sprocket(s) and timing chain on guide pins toward camshaft(s). Rotate camshaft(s) with 24 mm open-end wrench to properly align camshaft(s) and sprockets.
Install new camshaft sprocket bolts and tighten. This will pull camshaft sprockets and camshafts together. Hold camshaft with 24 mm open-end wrench during tightening.
Torque:

Camshaft Sprocket Bolts: 85 N.m (63 ft-lbs)+30°
Remove Camshaft Sprocket Holding Tool J43655.
Install front camshaft caps.
Torque:

Camshaft Bearing Cap Bolts: 10 N.m (89 in-lbs)
Install upper timing chain guide and bolts.
Torque:

Timing Chain Guide Bolts: 10 N.m (89 in-lbs)

Fig 11: Installing Upper Timing Chain Guide And Bolts
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Apply Permatex® Anarobic Flange Sealant to cylinder head near the rear intake cap as shown.
Install rear intake camshaft bearing cap.
Torque:

Intake Camshaft Rear Cap: 25 N.m (18 ft-lbs)
Install power steering block off plate.
Torque:

Power Steering Block Off Plate: 25 N.m (18 ft-lbs)

Fig 12: Installing Power Steering Block Off Plate
Courtesy of GENERAL MOTORS CORP.
Visually inspect camshaft cover gasket for signs of leakage. Camshaft cover gasket is reusable if not damaged.
Assemble camshaft cover and gasket. Use care to make sure that gasket is located in retaining groove on camshaft cover.
Install cover on cylinder head and hand tighten bolts.
Torque:

Camshaft Cover Bolts: 10 N.m (89 in-lbs)

Fig 13: Installing Cover On Cylinder Head
Courtesy of GENERAL MOTORS CORP.

NOTE: An open-end wrench must be used to support the fuel line to rail connection during loosening/tightening to avoid damaging fuel rail assembly.
Re-position fuel line assembly.
Install transfer line fitting at fuel-to-fuel rail.
Torque:

Transfer Line Fitting-to-Fuel Rail: 10 N.m (89 in-lbs)

Fig 14: Installing Transfer Line Fitting At Fuel-To-Fuel Rail
Courtesy of GENERAL MOTORS CORP.
Connect fuel rail bracket and bolt to cylinder head.
Torque:

Fuel Line Bracket Bolt: 10 N.m (89 in-lbs)

Fig 15: Connecting Fuel Rail Bracket And Bolt To Cylinder Head
Courtesy of GENERAL MOTORS CORP.
Connect ground strap to camshaft cover assembly.
Torque:

Camshaft Cover Ground Strap Bolts: 10 N.m (89 in-lbs)
Connect degas hose and clamp to cylinder head.
Connect degas hose clip to fuel rail.
Install spark plugs.
Torque:

Spark Plugs: 20 N.m (15 ft-lbs)

Fig 16: Connecting Ground Strap To Camshaft Cover Assembly
Courtesy of GENERAL MOTORS CORP.
Install ignition module assembly to cam cover and hand-tighten retaining bolts.
Torque:

Ignition Module-to-Camshaft Cover Bolts: 8 N.m (71 in-lbs)

Fig 17: Installing Ignition Module-to-Camshaft
Courtesy of GENERAL MOTORS CORP.
Position outlet resonator/duct assembly into position.
Connect PCV fresh air vent hose assembly.
Tighten clamp at throttle body assembly.
Position outlet resonator/duct assembly up with support bracket and install push-pin.
Tighten clamp at air cleaner assembly.
Connect intake air temperature (IAT) sensor connector.
Connect negative battery cable.

Torque:

Battery Terminal Bolt: 17 N.m (13 ft-lbs)

Fig 18: Installing Outlet Resonator/Duct Assembly

Courtesy of GENERAL MOTORS CORP.