ENGINE BLOCK
DESCRIPTION
The die cast aluminum cylinder block is a two-piece assembly, consisting of the cylinder block and ladder frame. The block is an open deck design with cast in place cast iron cylinder liners. The cast iron cylinder liners are recessed below the aluminum deck surface. The ladder frame bolts to the cylinder block and does not incorporate the main bearing caps. This design offers a much stronger lower end and increased cylinder block and transaxle rigidity. The rear oil seal retainer is integral with the block and ladder frame. The ladder frame and block are serviced as an assembly.
CLEANING
Clean cylinder block thoroughly using a suitable cleaning solvent.
INSPECTION
ENGINE BLOCK
1. Clean cylinder block thoroughly and check all core hole plugs for evidence of leaking.
2. Examine block and cylinder bores for cracks or fractures.
3. Check block deck surfaces for flatness. Deck surface must be within service limit of 0.050 mm (0.002 in.).
CYLINDER BORE
NOTE: The cylinder bores should be measured at normal room temperature, 21°C (70°F).
The cylinder walls should be checked for out-of-round and taper with Tool C119 or equivalent (Refer to 9 - ENGINE - SPECIFICATIONS). If the cylinder walls are badly scuffed or scored, the cylinder block should be replaced, and new pistons and rings fitted.
Measure the cylinder bore at three levels in directions A and B . Top measurement should be 10 mm (3/8 in.) down and bottom measurement should be 10 mm (3/8 in.) up from bottom of bore. (Refer to 9 - ENGINE - SPECIFICATIONS).