GMC G3500 - Page 6

Fig 3: View Of Oil Pump Screen & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.
5. Lubricate a NEW oil pump screen O-ring seal with clean engine oil.
6. Install the NEW 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 N.m (106 lb in).
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