Crankshaft and Bearings Removal

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Tools Required

J 6125-1B Slide Hammer
J 41818 Crankshaft Bearing Cap Remover

IMPORTANT: The crankshaft bearing caps are machined with the engine block for the proper clearances. Mark or identify each crankshaft bearing cap location and direction before removal. The crankshaft bearing caps MUST be installed to their original position and direction.

Do not reuse the bearing cap M8 side bolts.

Remove the bearing cap M8 side bolts prior to cap removal.

Remove the crankshaft position sensor bolt.
Remove the crankshaft position sensor.

Fig 1: Crankshaft Position Sensor & Bolt
Courtesy of GENERAL MOTORS CORP.
Remove the crankshaft bearing cap M8 side bolts.
Remove the bearing cap M10 bolts and bolt/studs.
Note the M10 bolt/stud locations.

Fig 2: Bearing Cap M10 Bolts And Bolt/Studs
Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the J 41818.
Tighten

Tighten the J 41818 bolts to 11 N.m (100 lb in).
Install the J 6125-1B to the J 41818 in order to remove the crankshaft bearing caps.

Fig 3: Removing Crankshaft Bearing Caps Using J 6125-1B & J 41818
Courtesy of GENERAL MOTORS CORP.
Remove the bearing caps.

Fig 4: Crankshaft Bearing Caps
Courtesy of GENERAL MOTORS CORP.
Remove the crankshaft.

Fig 5: Crankshaft
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Use care when handling the crankshaft. Avoid damage to the crankshaft position sensor reluctor ring teeth. Nicks, burrs or other damage to the teeth may effect On-Board Diagnostics (OBD) II system performance.
Lay the crankshaft onto two wooden V-blocks or other protective surface.

Fig 6: Crankshaft Removed
Courtesy of GENERAL MOTORS CORP.
Remove the crankshaft bearings from the bearing caps and the engine block.
Mark, sort, or organize the crankshaft bearings so they may be installed to their original position and location. Refer to Separating Parts .

Fig 7: Crankshaft Bearings & Caps
Courtesy of GENERAL MOTORS CORP.