Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSINFINITI2006FX35 AWD V6-3.5L (VQ35DE)REPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINECYLINDER BLOCK ASSEMBLYSPECIFICATIONSTIGHTENING TORQUES & SEQUENCESMAIN BEARING CAP
2006 Infiniti FX35 AWD V6-3.5L (VQ35DE)
Main Bearing Cap
2006 Infiniti FX35 AWD V6-3.5L (VQ35DE)SECTION Main Bearing Cap
Main Bearing Cap
Install main bearing cap bolts in numerical order as shown in the figure as follows:
Inspect the outer diameter of main bearing cap bolt.
Apply new engine oil to threads and seat surfaces of main bearing cap bolts.
Tighten main bearing cap bolts in several different steps.
Torque 35.3 Nm (3.6 kg-m, 26 ft. lbs.)
Turn all main bearing cap bolts 90° clockwise (Angle tightening).
CAUTION: Use the angle wrench [SST: KV10112100 (BT8653-A)] to check tightening angle. Do not make judgment by visual inspection.
After installing main bearing cap bolts, make sure that crankshaft can be rotated smoothly by hand.
MAIN BEARING CAP BOLT OUTER DIAMETER
^ Measure the outer diameters (d1, d2) at two positions as shown in the figure.
^ If reduction appears in A range, regard it as d2
Limit (d1 - d2) 0.11 mm (0.0043 inch)
^ If it exceeds the limit (large difference in dimensions), replace main bearing cap bolt with new one.
Install main bearing cap bolts in numerical order as shown in the figure as follows:
Inspect the outer diameter of main bearing cap bolt.
Apply new engine oil to threads and seat surfaces of main bearing cap bolts.
Tighten main bearing cap bolts in several different steps.
Torque 35.3 Nm (3.6 kg-m, 26 ft. lbs.)
Turn all main bearing cap bolts 90° clockwise (Angle tightening).
CAUTION: Use the angle wrench [SST: KV10112100 (BT8653-A)] to check tightening angle. Do not make judgment by visual inspection.
After installing main bearing cap bolts, make sure that crankshaft can be rotated smoothly by hand.
MAIN BEARING CAP BOLT OUTER DIAMETER
^ Measure the outer diameters (d1, d2) at two positions as shown in the figure.
^ If reduction appears in A range, regard it as d2
Limit (d1 - d2) 0.11 mm (0.0043 inch)
^ If it exceeds the limit (large difference in dimensions), replace main bearing cap bolt with new one.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.