Connecting Rod, Connecting Rod Bearing Construction [Lf] - Mazda 2006 MX-5 Service Highlights

CONNECTING ROD, CONNECTING ROD BEARING CONSTRUCTION [LF]

• Connecting rod is made of structural sintered alloy to improve rigidity.
• The connecting rod, the piston, and the piston pin are interference fit, so that they cannot be disassembled.
• The connecting rod bolts are torque-to-yield type to be tightened in two steps to insure tightening stability
and cannot be reused.
• There is no positioning tab for the connecting rod bearing. When installing the bearing, measure the position of
the bearing so that the position gets to the center of the connecting rod and the bearing cap, and install it.
• The big end of the connecting rod and the connecting rod cap were originally formed as a single unit and then
it was cut into the connecting rod and the cap. The form of the cutting surface is used for the alignment mark for
the connecting rod and the cap.
• The upper and lower bearing of the connecting rod bearing is made of aluminum alloy.
• There are three kinds of connecting rod bearings depending on the oil clearance.
Bearing size Bearing thickness (mm {in})
Standard 1.498—1.522 {0.0589—0.0599}
0.25OS 1.623—1.629 {0.0639—0.0641}
0.50OS 1.748—1.754 {0.0688—0.0690}
End Of Sie
MECHANICAL
ENLARGEMENT
CONNECTING ROD
FRACTURE SIDE
CONNECTING ROD
BEARING CAP
CONNECTING ROD
BEARING CAP
CONNECTING ROD
BEARING
2.3—2.7 mm
{0.09—0.10 in}
E5U011011211N01
01–10
E5U110ZT5014
01–10–7