Nissan Pathfinder: Vq35dd - Precautions ++

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collisions.

Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” sections of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation:

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation:

Precaution for Procedure without Cowl Top Cover

When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc to prevent damage to windshield.

Precaution for Handling High Pressure Fuel System

• High pressure fuel system components are between high pressure fuel pump and fuel injector.

• Always release fuel pressure and never start the engine when performing removal and installation.

• When removing or installing parts without releasing fuel pressure, fuel may be splashed and, if fuel contacts skin or eyes, it may cause inflammation.

Precaution for Drain Coolant and Engine Oil

• Drain engine coolant and engine oil after the engine has cooled completely.

Precaution for Disconnecting Fuel Piping

• Before starting work, make sure no fire or spark producing items are in the work area.

• Release fuel pressure before disassembly.

• After disconnecting pipes, plug openings to stop fuel leakage.

Precaution for Removal and Disassembly

• When instructed to use special service tools, use the specified tools. Always be careful to work safely, avoid forceful or uninstructed operations.

• Exercise maximum care to avoid damage to mating or sliding surfaces.

• Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.

• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used where noted in the step.

Precaution for Inspection, Repair and Replacement

• Thoroughly inspect parts before repairing or replacing them, even if they are new. Replace as necessary.

Parts Requiring Angular Tightening

• Use an angle wrench for the final tightening of the following engine parts:

  • Cylinder head bolts

  • Main bearing cap bolts

  • Connecting rod cap nuts

  • Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)

• Do not use a torque value for final tightening.

• The torque value for these parts are for a preliminary step.

• Ensure thread and seat surfaces are clean and coated with engine oil.

Precaution for Liquid Gasket

REMOVAL OF LIQUID GASKET SEALING

• After removing the bolts and nuts, separate the mating surface and remove the liquid gasket using Tool (A).

  

  Tool Number

  : KV10111100 (NI-37228)

  CAUTION:

  Be careful not to damage the mating surfaces.

• In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the liquid gasket is applied. Use a plastic hammer to slide (2) the cutter by tapping on the side.

CAUTION:

Do not damage the mating surfaces.

LIQUID GASKET APPLICATION PROCEDURE

1. Using suitable tool (A), remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.

   

   • Remove liquid gasket completely from the groove of the liquid gasket application surface, mounting bolts, and bolt holes.

2. Thoroughly clean the mating surfaces and remove adhering moisture, grease and foreign materials.

3. Attach liquid gasket tube to the suitable tool.

   

   Use Genuine Silicone RTV Sealant, or equivalent. Refer to Recommended Chemical Products and Sealants.

4. Apply liquid gasket without gaps to the specified location according to the specified dimensions.

   • If there is a groove for liquid gasket application, apply liquid gasket to the groove.

   • As for bolt holes (B), normally apply liquid gasket inside the holes. Occasionally, it should be applied outside the holes. Check to read the text of this manual.

     

     (A)	: Groove
     	: Inside

   • Within five minutes of liquid gasket application, install the mating component.

   • If liquid gasket protrudes, wipe it off immediately.

   • Do not retighten bolts or nuts after the installation.

   • After 30 minutes or more have passed from the installation, fill engine oil and engine coolant.

     • Engine oil, Refer to Refilling.

     • Engine coolant. Refer to Refilling.

   CAUTION:

   If there are more specific instructions in the procedures contained in this manual concerning liquid gasket application, observe them.

Intermittent Incident ++Transaxle & Transmission