Murano AWD V6-3.5L (VQ35DE) (2009)
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Measure the dimensions at four different points as shown in the figure on each main journal and pin journal with a micrometer.
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Out-of-round is indicated by the difference in the dimensions between (d) and (c) at (a) and (b).
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Taper is indicated by the difference in the dimensions between.
Limit : Refer to See: Specifications
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If the measured value exceeds the limit, correct or replace crankshaft.
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If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then select the main bearing and/
or connecting rod bearing. Refer to See: Crankshaft Main Bearing/Service and Repair and/or See: Connecting Rod Bearing/Service and Repair.
CRANKSHAFT RUNOUT
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Place V-block on precise flat table, and support the journals on the both end of crankshaft.
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Place a dial indicator straight up on the No. 3 journal.
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While rotating crankshaft, read the movement of the pointer on a dial indicator. (Total indicator reading)
Standard and limit : Refer to See: Specifications
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If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
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Install connecting rod bearings (1) to connecting rod (2) and connecting rod cap, and tighten connecting rod bolts to the specified torque. Refer to
See: Service and Repair/Disassembly And Assembly for the tightening procedure.
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Measure the inner diameter of connecting rod bearing with an inside micrometer.
(Oil clearance) = (Connecting rod bearing inner diameter) - (Crankshaft pin journal diameter)
Standard and limit : Refer to See: Connecting Rod Bearing/Specifications