Altima L4-2.5L (QR25DE) Hybrid (2007)
Crankshaft Main Bearing: Specifications
Tightening Torques & Sequences
Main Bearing Cap
Tighten lower cylinder block bolts in the numerical order as shown and according to the following steps:
Apply new engine oil to threads and seat surfaces of the bolts.
Tighten bolts No. 11 - 22 only in the order as shown, to specification below.
Step 1, bolts 11 - 22 only ..................................................................................................................................................... 25.1 Nm (2.6 kg-m, 19 ft-lb)
Tighten bolts No. 1 - 10 only in the order as shown, to specification below.
Step 2, bolts 1 - 10 only ....................................................................................................................................................... 39.2 Nm (4.0 kg-m, 29 ft-lb)
CAUTION: Check tightening angle. Do not make judgment by visual inspection.
Tighten bolts No. 1 - 10 only in the order as shown, to specification below.
Tool number: KV10112100 (BT-8653-A)
Step 3, bolts 1 - 10 only .................................................................................................................................................................................. 60° rotation
After installing the bolts, make sure that the crankshaft can be rotated smoothly by hand.
OUTER DIAMETER OF LOWER CYLINDER BLOCK BOLT
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Perform only with M10 (0.39 in) bolts.
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Measure outer diameters (d1, d2) at two positions as shown.
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Measure d2 at a point within area A as shown.
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When the value of d1 - d2 exceeds the limit (a large difference in dimensions), replace the bolt with a new one.
Limit ........................................................................................................................................................................................... 0.13 mm (0.0051 in)