Measuring Procedure Cadillac ELR I

Engine Block Flatness Inspection

1. Inspect the engine block as shown for distortion. Use a straightedge (1).
2. Inspect the engine block as shown for deflection. Use a straightedge (1).

Cylinder bore and crankshaft bearing bore

1. Install the crankshaft bearing cap tie plate and tighten.
2. Inspect the crankshaft main bearing bores. Use the EN-8087 gauge (1) to measure the bearing bore concentricity and alignment. Refer to «Engine Mechanical Specifications»(ref-636500-S34959685822014070700000) to find the permitted values.
3. Replace the engine block and crankshaft bearing cap tie plate if the crankshaft bearing bores are out of specification.
4. Inspect the cylinder bores using the EN-8087 gauge (1). Inspect for the following items: Wear Taper Runout Ridging
5. Refer to «Engine Mechanical Specifications»(ref-636500-S34959685822014070700000) to find the permitted values.
6. If the cylinder bores are out of specification, replace the engine block.
7. Remove the crankshaft bearing cap tie plate.