PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPACER IN THE PRECHAMBER COUNTERBORE ON CERTAIN G3608, G3612, AND G3616 ENGINES
Usage:
SEBE9318
August 26, 2005
U-285
A-205
D-220
O-235
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| After failure only |
PRODUCT SUPPORT PROGRAM FOR REPLACING THE SPACER IN THE PRECHAMBER COUNTERBORE ON CERTAIN G3608, G3612, AND G3616 ENGINES |
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PS51021
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NOTE: The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.
TERMINATION DATE
August 31, 2007PROBLEM
- Some G3600 engines using the 8D0648 prechamber bolt may experience bolt failures due to fretting fatigue. The fretting occurs when the 5V7652 spacer is not centered in the prechamber counterbore. To resolve this issue the 5V7852 spacer is being replaced with the 275-4011 spacer, which has a larger ID and a larger OD than the previous spacer.
AFFECTED PRODUCT
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| Model | Identification Number |
| G3606 | 3XF00016-00374
4ZS00281-00489 |
| G3608 | 4WF00015-00248
BEN00208-00274 |
| G3612 | 1YG00020-00260
BKE00192-00269 |
| G3616 | 4CG00023-00247
BLB00163-00254 |
PARTS NEEDED
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Qty |
Part Number |
Description |
| 24 | 7D1649 | WASHER-HARD |
| 24 | 2754011 | SPACER |
ACTION REQUIRED
To resolve this issue the 5V7852 spacer is being replace with the 275-4011 spacer which has a larger ID and a larger OD than the previous spacer. The 5P8245 washer also is replaced with a 7D1649 washer. Care should be taken to center the spacer in the prechamber counterbore during installation. The torque turn procedure remains the same. This spacer applies to all cylender head / prechamber GPS utilizing the 1/2" prechamber hold down bolt.SERVICE CLAIM ALLOWANCES
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PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.Caterpillar Information System:
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