6248-29-2230 3648615
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his document announces the release of a new oversize cylinder liner for use on the QSK78 diesel engines. |
The new oversize cylinder liner was released to improve cylinder block serviceability. |
The oversize dimensional feature of the liner applies to the lower press fit diameter only. |
The 0.25 mm [0.098 in] oversize liner has the lower press fit dimension increased by 0.25 mm [0.098 in] from its nominal dimensional value. The new oversize cylinder liner can be identified by a single groove located down at the cylinder liner bottom edge, reference Figure 1. |
The 0.50 mm [0.197 in] oversize liner has the lower press fit dimension increased by 0.50 mm [0.197 in] from its nominal dimensional value. The new oversize cylinder liner can be identified by a double groove located down at the cylinder liner bottom edge, reference Figure 1. |
Use the following procedure for oversize cylinder liner specifications and removal and installation instructions. Refer to Procedure 001-027, Refer to Procedure 001-028, and Refer to Procedure 001-064 in Section 1 of the QSK78 Series Engines Troubleshooting and Repair Manual, Bulletin 3666727. |
Table 1, Oversize Cylinder Liner | |
Description | Part Number |
0.25 mm [0.0098 inch] Oversize | 3648615 |
0.50 mm [0.0197 inch] Oversize | 3648616 |
Two new oversize cylinder liner overhaul kits are available. These kits contain the cylinder liner, liner seal ring and two oil seal rings. Reference Tables 2 and 3. |
Table 2, Kit 1 - Part Number 4309528 (0.25 mm [0.0098 inch] oversize) | ||
Quantity | Part Description | Part Number |
1 | Cylinder liner | 3648615 |
1 | Liner seal ring | 3639993 |
1 | Oil seal ring | 4006179 |
1 | Oil seal ring | 4006297 |
Table 3, Kit 2 - Part Number 4309529 (0.50 mm [0.0197 inch] oversize) | ||
Quantity | Part Description | Part Number |
1 | Cylinder liner | 3648616 |
1 | Liner seal ring | 3639993 |
1 | Oil seal ring | 4006179 |
1 | Oil seal ring | 4006297 |
his document announces the release of a new oversize cylinder liner for use on the QSK78 diesel engines. |
The new oversize cylinder liner was released to improve cylinder block serviceability. |
The oversize dimensional feature of the liner applies to the lower press fit diameter only. |
The 0.25 mm [0.098 in] oversize liner has the lower press fit dimension increased by 0.25 mm [0.098 in] from its nominal dimensional value. The new oversize cylinder liner can be identified by a single groove located down at the cylinder liner bottom edge, reference Figure 1. |
The 0.50 mm [0.197 in] oversize liner has the lower press fit dimension increased by 0.50 mm [0.197 in] from its nominal dimensional value. The new oversize cylinder liner can be identified by a double groove located down at the cylinder liner bottom edge, reference Figure 1. |
Use the following procedure for oversize cylinder liner specifications and removal and installation instructions. Refer to Procedure 001-027, Refer to Procedure 001-028, and Refer to Procedure 001-064 in Section 1 of the QSK78 Series Engines Troubleshooting and Repair Manual, Bulletin 3666727. |
Table 1, Oversize Cylinder Liner | |
Description | Part Number |
0.25 mm [0.0098 inch] Oversize | 3648615 |
0.50 mm [0.0197 inch] Oversize | 3648616 |
Two new oversize cylinder liner overhaul kits are available. These kits contain the cylinder liner, liner seal ring and two oil seal rings. Reference Tables 2 and 3. |
Table 2, Kit 1 - Part Number 4309528 (0.25 mm [0.0098 inch] oversize) | ||
Quantity | Part Description | Part Number |
1 | Cylinder liner | 3648615 |
1 | Liner seal ring | 3639993 |
1 | Oil seal ring | 4006179 |
1 | Oil seal ring | 4006297 |
Table 3, Kit 2 - Part Number 4309529 (0.50 mm [0.0197 inch] oversize) | ||
Quantity | Part Description | Part Number |
1 | Cylinder liner | 3648616 |
1 | Liner seal ring | 3639993 |
1 | Oil seal ring | 4006179 |
1 | Oil seal ring | 4006297 |