General (B6284T; B6294S; 2000-2001): Specifications: Pistons
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.
Piston diameter (D)
| Standard | B6284T The diameter is measured 42 mm from the top of the piston |
B6294S The diameter is measured 12 mm from the bottom of the piston |
| C-marked 1 | 80.98-80.99 | 82.98-82.99 |
| D-marked 1 | 80.99-81.00 | 82.99-83.00 |
| E-marked 1 | 81.00-81.01 | 83.00-83.01 |
1 The classification is marked on the top of the piston.
Piston running clearance (example)
| Measured cylinder diameter........ | 81.015 mm |
| Measured piston diameter........ | 80.995 mm |
| The piston running clearance is........ | 0.020 mm |
| The piston running clearance must be 0.010-0.030 mm. |
Piston rings
Axial clearance
| Upper compression ring........0.030-0.070 mm |
| Lower compression ring........0.030-0.070 mm |
| Oil control ring assembly........0.038-0.142 mm |
Compression ring dimension
| Upper........1.200 -0.010/-0.030mm |
| Lower........1.500 -0.010/-0.030mm |
Dimension, three piece oil ring
| Spring........1.510 0.020 mm |
| Rail........0.460 0.011 mm |
Piston pin
| B6284T |
| Diameter........23.000 +0/-0.004 mm |
| Length........61.000 +0/-0.200 mm |
| B6294S |
| Diameter........21.000 +0/-0.004 mm |
| Length........57.000 +0/-0.200 mm |