Cylinder Block Assembly: Testing and Inspection

BORE SIZE, TAPER AND WARPAGE





1. Measure wear and taper in directions X and Y at three levels in each cylinder as shown.

^ Cylinder Bore Size
- Standard (New):
^ A or 1 87.010-87.020 mm (3.4256-3.4260 inch)
^ B or 11 87.000-87.010 mm (3.4252-3.4256 inch)
- Service Limit: 87.07 mm (3.428 inch)
- Oversize
^ 0.25: 87.250-87.260 mm (3.4350-3.4354 inch)
^ 0.50: 87.500-87.510 mm (3.4449-3.4453 inch)
- Bore Taper
^ Limit: (Difference between first and third measurement) 0.05 mm (0.002 inch)
If measurements in any cylinder are beyond Oversize Bore Service Limit, replace the block.
If block is to be rebored, refer to Piston.

NOTE: Scored or scratched cylinder bores must be honed.

- Reboring Limit: 0.50 mm (0.020 inch) max.

Surfaces To Be Measured:

2. Check the top of the block for warpage.
Measure along the edges and across the center as shown.





^ Engine Block Warpage:
- Standard (New): 0.07 mm (0.003 inch) max.
- Service Limit: 0.10 mm (0.004 inch)