Installation (RAV4)
- To install, reverse removal procedure using NEW grommets, "O" rings, insulators and gaskets. Coat "O" rings with gasoline before installing "O" rings on fuel injector.
- Install the 2 spacers and fuel injectors on cylinder head before installing fuel rail on fuel injectors. Use twisting motion on each fuel injector while pushing fuel rail onto fuel injectors.
- With fuel rail installed, loosely install fuel rail-to-cylinder head bolts. Ensure fuel injectors rotate smoothly. If fuel injectors fail to rotate smoothly, check for improper "O" ring installation. Ensure electrical connector on each fuel injector is facing upward.
- Tighten fuel rail-to-cylinder head bolts and fuel inlet hose-to-fuel filter union bolt to specification. See TORQUE SPECIFICATIONS .NOTE: Brown electrical connectors for fuel injectors should be installed on fuel injectors on cylinders No. 1 and 3. Dark Gray electrical connectors for fuel injectors should be installed on fuel injectors on cylinders No. 2 and 4.
- Before installing valve cover and gasket, apply sealant at specified areas on cylinder head. See Figure. Install gasket and valve cover.
- Install grommets in original location with marking on grommet aligned in designated area. See Figure. Install and tighten valve cover nuts to specification. See TORQUE SPECIFICATIONS . Operate fuel pump and check for fuel leaks. See FUEL PUMP OPERATION under FUEL SYSTEM in appropriate BASIC TESTING article.