Mazda CX-5 Service & Repair Manual: Connecting Rod, Connecting Rod Bearing
Purpose, Function
Connecting rod
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The connecting rod transmits the reciprocating movement of the piston to the crankshaft by engaging the piston pin and crank pin.
Connecting rod bearing
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The connecting rod bearing forms an oil film on the outer surface of the crank pin to prevent wear due to sliding.
Construction
Connecting rod
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The connecting rod is installed between the piston pin and crank pin.
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High-strength, forged carbon steel has been adopted for weight reduction.
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A cracking method*1 for breaking off and separating the connecting rod from the connecting rod cap has been adopted for improved accuracy.
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Weight has been reduced by optimizing the shape from the I shaft to the large end.
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Reciprocating inertial weight, including the piston, has been reduced with the use of a full-float type for the connection with the piston and further tapering of the small end shape.
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With the adoption of the plastic region tightening*2 method for the connecting rod bolt, the stability of the axial force has been improved.
*2 Plastic region tightening is a method of controlling the tightening using the rotation angle of a bolt. By tightening to the region (plastic tightening region) in which bolt deformation does not become irreversible, variation in axial force is suppressed.
Connecting rod bearing
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The connecting rod bearing is installed on the outer surface of the crank pin.
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The upper and lower connecting rod bearing are made of aluminum alloy.
Piston Assembly
...
Piston, Piston Ring, Piston Pin
Purpose, Function
Piston
The piston in the cylinder of the cylinder block moves reciprocally by the
pressure received when the air-fuel mixture combusts.
Piston ring
The piston ...
Other materials:
Filament Inspection
1. Switch the ignition ON (engine off).
2. Turn the rear window defroster switch on.
CAUTION:
Directly touching the rear window defroster filament with the lead of the
tester could damage it. Wrap aluminum foil around the end of the lead and inspect
the filament by touching it ...
Passenger Compartment Temperature Sensor Removal/Installation [Full Auto Air
Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Front scuff plate (driver-side).
b. Front side trim (driver-side).
c. Switch panel.
d. Decoration panel.
e. Shift lever knob (MTX).
f. Front console box.
g. Shift panel.
h. Upper panel.
i. Rear console. ...
Clutch Fluid Leakage Inspection [C66 M R]
CAUTION:
Do not allow clutch fluid to get on a painted surface. Clutch fluid contains
properties which can dissolve the paint. If clutch fluid gets on a painted surface,
wash it off with water immediately and wipe the area off completely.
1. Verify reserve tank cap is on tight.
...