The purpose of New Product Information is to highlight, or indicate, important product changes from the previous model year.
Changes may include 1 or more of the following items:
| • | Torque values and/or fastener tightening strategies |
| • | Changed engine specifications |
| • | New sealants and/or adhesives |
| • | Disassembly and assembly procedure revisions |
| • | Engine mechanical diagnostic procedure revisions |
| • | New special tools required |
| • | A component comparison from the previous year |
Torque Values and/or Fastener Tightening Strategies
The new design crankshaft balancer bolt is now tightened using a four-step tightening process.
Changed Engine Specifications
No revisions to the engine specifications.
New Sealants and/or Adhesives
No revisions to the sealers and adhesives.
Disassembly and Assembly Procedure Revisions
No revisions to the disassembly or assembly procedure.
Engine Mechanical Diagnostic Procedure Revisions
No revisions to the engine mechanical diagnostic procedure.
New Special Tools Required
EN-48853 is required for alignment of the front cover.
A Component Comparison from the Previous Year
| • | A new design balancer bolt with a four step tightening process is used. |
| • | A new second design front cover may be used. |
| • | Production design engines will use a rivet-type plug replacing the coolant air bleed covers located at the top rear of each cylinder head. To properly repair a leaking plug, remove cylinder head from the engine, remove the plug from the cylinder
head and install first design coolant air bleed cover and bolt. |
| • | All fasteners and threaded holes on the LH6 engines utilize metric threads. |
| • | Certain fasteners should not be used again. Bolts, studs, or other fasteners that must be replaced, will be called out in the specific service procedure. |
