Crankshaft and Bearing Removal

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

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

Equivalent regional tools: Special Tools

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NOTE:
- 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.
- All M8, and M10 bolts are to be discarded and replaced with NEW.
Remove the crankshaft position (CKP) sensor bolt (702).
Remove the CKP sensor (701).
Remove the O- Ring (750) from the sensor, as required.
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Remove and discard the crankshaft bearing cap M8 bolts (127).
Remove and discard the bearing cap M10 bolts (129) and studs (128).
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CAUTION:
Refer to Fastener Caution .

Install the J-41818 remover (2) and tighten to 11 N.m (100 lb in).
Install the J-6125-1B hammer (1) to the J-41818 remover (2) in order to remove the crankshaft bearing caps.
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Remove the crankshaft bearing caps.
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Remove - Crankshaft
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NOTE:
Use care when handling the crankshaft. Avoid damage to the CKP sensor reluctor ring teeth. Nicks, burrs or other damage to the teeth may affect on-board diagnostics (OBD) II system performance.

Lay the crankshaft onto 2 wooden V-blocks or other protective surface.
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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. Separating Parts .