Altima V6-3.5L (VQ35DE) (2006)
4. Check that piston-to-bore clearance is within specification.
Piston-to-bore clearance at "B": 0.010 - 0.030 mm (0.0004 - 0.0012 inch)
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The piston-to-bore clearance is measured at the "B" level in the cylinder as shown.
5. Determine piston oversize according to amount of cylinder wear. Oversize pistons are available for service.
6. Cylinder bore size is determined by adding piston-to-bore clearance to piston diameter "A".
Rebored size calculation: D = A + B is where,
D: Bored diameter
A: Piston diameter as measured
B: Piston-to-bore clearance
C: Honing allowance 0.02 mm (0.0008 inch)
7. Install main bearing caps, and tighten to the specified torque. Otherwise, cylinder bores may be distorted after boring.
8. Cut cylinder bores.
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When any cylinder needs boring, all other cylinders must also be bored.
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Do not cut too much out of cylinder bore at a time. Cut only 0.05 mm (0.0020 inch) or so in diameter at a time.
9. Hone cylinders to obtain specified piston-to-bore clearance.
10. Measure finished cylinder bore for out-of-round and taper.
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Measurement should be done after cylinder bore cools down.
PISTON, PISTON RING AND PISTON PIN
Available Piston
Available Piston