Description
| Technical Service Bulletin | |||
| Technical Service Bulletin: tsb100391 | Released Date: 09-Aug-2005 | ||
Upper Engine Gasket Kit Introduction
Warranty Statement
The information in this document has no effect on present warranty coverage or repair practices, nor does it authorize TRP or Campaign actions.
Contents
This Technical Service Bulletin introduces a new upper engine gasket kit, Part Number 4089649, for B Series engines. The release of the new upper engine gasket kit, changes the type of valve stem seal used on B Series two valve diesel products from a ring and band design to an integral design. The new valve stem seals provide a more consistent location and eliminates the potential for the seal coming off the tower during operation. The old style gasket kit, Part Number 3804897, is obsolete. It is superseded by the new style gasket kit, Part Number 4089649.
The valve spring retainers, Part Number 3957913, and the valve rotators, Part Number 3957914, must be replaced when new valve stem seals are installed on engines built prior to April, 2003. The valve stem seals included in the kit, Part Number 3957912, are not compatible with the old valve spring retainers or the old valve rotators prior to Part Numbers 3957913 and 3957914, respectively.
| Valve Stem Seal | Valve Spring Retainer | Valve Rotator | |
| After April 2003 | 3957912 | N/A | N/A |
| Parts Required before April 2003 | 3957912 | 3957913 | 3957914 |
Note : This is a product improvement and not subject to campaign.
Last Modified: 09-Aug-2005
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