GMC G3500 User manual

ON-VEHICLE REPAIR INSTRUCTIONS > OIL PUMP, SCREEN AND
CRANKSHAFT OIL DEFLECTOR REPLACEMENT > REMOVAL PROCEDURE
Fig 1: View Of Oil Pump Screen & O-Ring Seal
Courtesy of GE ERAL MOTORS CORP.
1. Remove the oil pan. Refer to Oil Pan Replacement .
2. Remove the engine front cover. Refer to Engine Front Cover Replacement .
3. Remove the oil pump screen bolt and nuts.
4. Remove the oil pump screen with O-ring seal.
5. Remove the O-ring seal from the pump screen.
6. Discard the O-ring seal.
Service Manual: E GI E MECHA ICAL - 4.8L, 5.3L, A D 6.0L - 2 OF 4
2006 GMC Savana 4. L Eng G3500
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Fig 2: View Of Crankshaft Oil Deflector & uts
Courtesy of GE ERAL MOTORS CORP.
7. Remove the remaining crankshaft oil deflector nuts.
8. Remove the crankshaft oil deflector.
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Fig 3: View Of Oil Pump & Bolt
Courtesy of GE ERAL MOTORS CORP.
IMPORTANT: Do not allow dirt or debris to enter the oil pump assembly,
cap end as necessary.
9. Remove the oil pump bolts.
10. Remove the oil pump.
11. Clean and inspect the oil pump. Refer to Oil Pump Cleaning and Inspection .
ON-VEHICLE REPAIR INSTRUCTIONS > OIL PUMP, SCREEN AND
CRANKSHAFT OIL DEFLECTOR REPLACEMENT > INSTALLATION
PROCEDURE
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Fig 1: View Of Oil Pump & Bolt
Courtesy of GE ERAL MOTORS CORP.
1. Align the splined surfaces of the crankshaft sprocket and the oil pump drive gear and
install the oil pump.
2. Install the oil pump onto the crankshaft sprocket until the pump housing contacts the
face of the engine block.
NOT : Refer to Fastener Notice in Cautions and Notices.
3. Install the oil pump bolts.
Tighten: Tighten the oil pump bolts to 25 .m (18 lb ft).
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Fig 2: View Of Crankshaft Oil Deflector & uts
Courtesy of GE ERAL MOTORS CORP.
4. Install the crankshaft oil deflector and nuts until snug.
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Fig 3: View Of Oil Pump Screen & O-Ring Seal
Courtesy of GE ERAL MOTORS CORP.
5. Lubricate a EW oil pump screen O-ring seal with clean engine oil.
6. Install the EW O-ring seal onto the oil pump screen.
IMPORTANT: Push the oil pump screen tube completely into the oil pump
prior to tightening the bolt. Do not allow the bolt to pull the tube into the pump.
Align the oil pump screen mounting brackets with the correct crankshaft bearing cap
studs.
7. Install the oil pump screen.
8. Install the oil pump screen bolt and nuts.
Tighten:
1. Tighten the oil pump screen bolt to 12 .m (106 lb in).
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2. Tighten the crankshaft oil deflector/oil pump screen nuts to 25 .m (18 lb ft).
9. Install the engine front cover. Refer to Engine Front Cover Replacement .
10. Install the oil pan. Refer to Oil Pan Replacement .
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