The purpose of New Product Information is to highlight
or indicate important product changes from the previous model year.
Changes may include one or more of the following items:
| • | A component comparison from the previous year |
| • | 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 |
Component Comparison
| • | Revised the water pump seal |
| • | Revised the engine coolant thermostat |
| • | New roller pivot type valve rocker arm assemblies using a one
piece valve rocker arm support to replace the ball pivot type valve rocker
arm system |
| • | Cylinder heads revised using dry holes for the valve rocker arm
bolts |
Torque Values and/or Fastener Tightening Strategies
| • | Cylinder head bolts, the crankshaft bearing cap bolts, the connecting
rod bolts, and balance shaft bolt apply a torque angle strategy. |
| | In an on-vehicle situation where a torque angle meter may not fit into
the vehicle packaging, a three step tightening process may be followed using
a torque wrench. |
| • | Certain fasteners should not be reused. Bolts, studs, or other
fasteners that must be replaced will be called out in the specific service
procedure. |
Changed Engine Specifications
Engine mechanical specifications remain the same as the 1999 products.
New Sealants and/or Adhesives
No new sealants or adhesive have been added.
Disassembly and Assembly Procedure Revisions
| • | Valve rocker arm and pushrod |
| • | Timing chain and sprockets |
| • | Discard all used gaskets, seals, or O-ring seals unless otherwise
indicated. |
| | Gaskets, seals, or O-ring seals that can be reused will be identified
in the specific service procedure. |
Engine Mechanical Diagnostic Procedure Revisions
| • | Valve Train diagnostic information is now provided in table form. |
| | Potential or probable causes are supplied for each specific concern. |
| • | Engine Noise diagnostic information is now provided in table form. |
| | Potential or probable causes are supplied for each specific concern. |
New Special Tools Required
No new special tools are required.
The purpose of New Product Information is to highlight or indicate
important product changes from the previous model year.
Changes may include one or more of the following items:
| • | A component comparison from the previous year |
| • | 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 |
Component Comparison
| • | Revised the water pump seal |
| • | Revised the engine coolant thermostat |
| • | New roller pivot type valve rocker arm assemblies using a one
piece valve rocker arm support to replace the ball pivot type valve rocker
arm system |
| • | Cylinder heads revised using dry holes for the valve rocker arm
bolts |
Torque Values and/or Fastener Tightening Strategies
| • | Cylinder head bolts, the crankshaft bearing cap bolts, the connecting
rod bolts, and balance shaft bolt apply a torque angle strategy. |
| | In an on-vehicle situation where a torque angle meter may not fit into
the vehicle packaging, a three step tightening process may be followed using
a torque wrench. |
| • | Certain fasteners should not be reused. Bolts, studs, or other
fasteners that must be replaced will be called out in the specific service
procedure. |
Changed Engine Specifications
Engine mechanical specifications remain the same as the 2001 products.
New Sealants and/or Adhesives
No new sealants or adhesive have been added.
Disassembly and Assembly Procedure Revisions
| • | Valve rocker arm and pushrod |
| • | Timing chain and sprockets |
| • | Discard all used gaskets, seals, or O-ring seals unless
otherwise indicated. |
| | Gaskets, seals, or O-ring seals that
can be reused will be identified in the specific service procedure. |
Engine Mechanical Diagnostic Procedure Revisions
| • | Valve Train diagnostic information is now provided in table form. |
| | Potential or probable causes are supplied for each specific concern. |
| • | Engine Noise diagnostic information is now provided in table form. |
| | Potential or probable causes are supplied for each specific concern. |
New Special Tools Required
No new special tools are required.
