Crankshaft, Main Bearing - Mazda 6 Training Manual

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CRANKSHAFT, MAIN BEARING

Structure
• Cast iron 5 ale-hole 4 counter weight has been adopted for the L8 engine models and LF engine models
crankshafts.
• Cast iron 5 ale-hole 8 counter weight has been adopted for the L3 engine models crankshaft. The shrinkage
fitted drive gear is attached to the crankshaft and the crankshaft drives the balance shaft.
• The conventional positioning key has been decommissioned and the tightening pressure of the crankshaft
pulley tightening bolt secures the installation part of the crankshaft sprocket. When installing the crankshaft
sprocket, always use the SST and align the No.1 cylinder to TDC.
.
1 Drive gear
• The oil line for supplying oil to each journal is provided in the crankshaft. And the crank pin and the fillets on
both sides of journal are rolled so that they bear the heavy loads.
.
1 Oil passage
• The upper and lower main bearings are made of aluminum alloy and the upper side No.3 journal bearing is
integrated with the thrust bearing. The upper main bearing has the oil grooves and the oil holes.
• The upper and lower bearings' positioning tabs for installing the main journal have been decommissioned.
• Measure and attach the main bearings (upper and lower) so that they are positioned at the center the main
bearing cap.
B–8
ENGINE
2 Fillet roll area
A6E222411301T01
AME2224N005
AME2224N006