ENGINE
3.28
PRESSURE RELIEF VALVE
The pressure relief valve opens to relieve any excess
pressure from the oil pump if oil pressure reaches
approximately 71 psi.
It must be clean and have
adequate spring pressure in order to seal properly.
1.
Remove cap bolt, sealing washer, spring, and
relief valve from MAG side crankcase.
2.
Inspect free length of spring and check coils for
distortion.
Relief Valve Spring Free Length:
Std: 2.175
″
(5.52 cm)
3.
Inspect valve for wear.
4.
Check seat area for nicks or foreign material that
may prevent proper sealing of valve.
OIL PUMP
REMOVAL/INSPECTION
1.
Remove the five screws on the oil pump cover
with an impact driver.
2.
Inspect rotors and mating surface of oil pump
cover.
Check for nicks, burrs, or surface
irregularities.
3.
Measure pump end clearance using a feeler
gauge and straight edge.
Outer Feed Rotor to Crankcase Clearance:
Std: .001-.003 (.0254-.0762 mm)
Wear Limit: .004 (.1016 mm)
4.
Measure clearance between outer feed rotor and
crankcase pocket with a feeler gauge.
Pump End Clearance:
Std: .001-.003 (.0254-.0762 mm)
Wear Limit: .004 (.1016 mm)
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Summary of Contents for 2009 Trail Blazer 330
Page 94: ...ENGINE 3 48 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 110: ...FUEL SYSTEM CARBURETION 4 16 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 124: ...BODY STEERING SUSPENSION 5 14 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 196: ...ELECTRICAL 10 4 REVERSE LIMIT SYSTEM P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 226: ...ELECTRICAL 10 34 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 227: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 228: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 229: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 230: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...