Hummer H3. Manual — part 194
3. Align the shoe (1) of the cylinder bore sleeve puller EN 45680-402 to the bottom of the
cylinder bore sleeve (117).
Fig. 405: Threaded Shaft
Courtesy of GENERAL MOTORS CORP.
2006 Hummer H3
2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
4. Hold the threaded shaft of the cylinder bore sleeve puller EN 45680-402 upward in order to
retain the shoe alignment to the bottom of the cylinder bore sleeve.
5. Install the fixture EN 456850-401 (4) onto the threaded shaft of the cylinder bore sleeve
puller EN 456850-402 and the engine block.
6. Install the bearing (3) and the nut (1).
7. Tighten the nut (1) to the bearing (3).
8. Install and tighten the 4 attaching bolts (2) into the cylinder head bolt holes of the block.
Tighten: Tighten the bolts to 15 N.m (11 lb ft).
NOTE:
Refer to Fastener Notice in Cautions and Notices.
IMPORTANT: Use four old cylinder head bolts for the attaching bolts.
2006 Hummer H3
2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
Fig. 406: Removing Cylinder Bore Sleeve By Rotating Nut
Courtesy of GENERAL MOTORS CORP.
9. Rotate the nut clockwise in order to remove the cylinder bore sleeve.
2006 Hummer H3
2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
Fig. 407: Removing Cylinder Bore Sleeve
Courtesy of GENERAL MOTORS CORP.
10. Remove fixture EN 45680-401, cylinder bore sleeve puller EN 45680-402, and the cylinder
bore sleeve (117) from the engine block.
11. Loosen the nut (1) in order to remove the cylinder bore sleeve (117).
12. Inspect the cylinder bore in the cylinder block for cracks or damage. If cracked or damaged,
replace the cylinder block.
13. Inspect the piston, piston rings, and connecting rod for damage. Refer to Piston,
Connecting Rod, and Bearings Cleaning and Inspection.
CYLINDER SLEEVE INSTALLATION
Tools Required
EN-45680-400 Cylinder Sleeve Removal and Installation Kit. See Special Tools.
NOTE:
Do not damage the cylinder block surface. Damage to the
cylinder block surface can cause engine failure.
NOTE:
Do not use assembly aids or lubricants on the cylinder bore
2006 Hummer H3
2006 ENGINE Engine Mechanical - 3.5L (L52) - H3
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