![]() Main bearing cap tightening procedure and torque specs:Īfter securing bearing cap bolts, make sure crankshaft turns smoothly by hand.įlywheel (M/T) or Drive plate (A/T) fixing bolts Number of piston rings (compression / oil): The cylinder bore is 96.0 mm (3.78 in), piston stroke is 103.0 mm (4.06 in) and compression ratio rating is 21.2:1. Each piston is fitted with two compression and one oil control rings. The pistons are made from aluminum alloy. ![]() The connecting rods are made from lightweight carbon steel and each rod has an internal oil passage which supplied an oil gallery in the piston. The 1KZ-T engine is equipped with a fully balanced steel crankshaft that has five main journals and operated on aluminum alloy bearings. The cylinder bores were plateau honed for more efficient piston ring sealing. The cylinder block has a monoblock high-strength cast-iron structure with the five-bearing-support system.
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