Passat Sedan 4Motion V6-2.8L (ATQ) (2003)
Piston: Service and Repair
Pistons & Connecting Rods, Disassembly & Assembly
Note:
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A serrated Conrod was put into floating use from model year 1998.
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The serrated Conrod uses M8 and M8.5 bolts. Always measure the thread as different tightening torques apply. Incorrect tightening could result in
engine damage.
1. Conrod bolt
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M8: 30 Nm + 1/4 turn (90°)
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M8.5: 40 Nm + 1/4 turn (90°)
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Always replace
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Oil threads and contact surface
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To measure radial clearance tighten to 30 Nm but not further
2. Conrod bearing cap
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Mark conrods to identify which cylinder they belong to, -A
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Mounting position: Markings -B indicate Cyls. 1-3 to pulley side, Cyls. 4-6 to flywheel side
3. Bearing shell
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Observe mounting position
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Do not exchange used bearing shells
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Measure radial play with plastigage:
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New: 0.015. - 0.062 mm
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Wear limit: 0.120 mm