Mazda 2006-2008 RX7 Engine, Руководство по ремонту

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MECHANICAL
01–10–20
6. Install the main bearing caps and crankshaft.
7. Position a plastigage atop the journals in the axial direction.
8. Install the main bearing caps and cylinder block. (See 01–10–28 Main Bearing Cap Assembly Note.)
9. Remove the main bearing caps. (See 01–10–11 Main Bearing Cap Disassembly Note.)
10. Measure the main journal oil clearance.
•
If it exceeds the specification, replace the
main bearing using the main bearing
selection table or grind the main journal and
install the oversize bearings so that the
specified oil clearance is obtained.
Main journal oil clearance (Standard)
0.019—0.035 mm {0.0007—0.0013 in}
Main journal oil clearance (Maximum)
0.10 mm {0.0039 in}
Main bearing size
STD: 2.506—2.509 mm {0.0987—0.0988 in}
OS0.25: 2.628—2.634 mm {0.1034—0.1037 in}
End Of Sie
CONNECTING ROD INSPECTION
E5U011011211E01
Caution
•
The piston and connecting rod cannot be disassembled.
•
When replacing the piston, piston pin, piston ring and connecting rod, replace them together as a
single unit.
1. Install the connecting rod cap. (See 01–10–29 Connecting Rod Cap Assembly Note.)
2. Measure the connecting rod large end side
clearance.
•
If it exceeds the specification, replace the
piston, piston pin, piston ring and connecting
rod as a single unit.
Connecting rod side clearance (Standard)
0.14—0.36 mm {0.0056—0.0141 in}
Connecting rod side clearance (Maximum)
0.435 mm {0.0172 in}
3. Remove the connecting rod cap.
4. Position plastigage atop the journals in the axial
direction.
5. Install the connecting rod bearing and connecting rod cap. (See 01–10–29 Connecting Rod Cap Assembly
Note.)
6. Remove the connecting rod cap.
7. Measure the connecting rod oil clearance.
•
If it exceeds the specification, replace the
connecting rod bearing or grind the crank pin
and use oversize bearings so that the
specified clearance is obtained.
Connecting rod bearing oil clearance
(Standard)
0.026—0.052 mm {0.0011—0.0020 in}
Connecting rod bearing oil clearance
(Maximum)
0.1 mm {0.0039 in}
Connecting rod bearing size [LF]
STD: 1.498—1.504 mm {0.0589—0.0592 in}
OS0.25: 1.623—1.629 mm {0.0639—0.0641 in}
Connecting rod bearing size [L3]
STD: 1.496—1.502 mm {0.0589—0.0591 in}
OS0.25: 1.621—1.627 mm {0.0639—0.0641 in}
B3E0110E086
B3E0110E087
B3E0110W128