TBI Fuel Injection Mixer (Throttle Body): Reassembly

Install new seal ring into groove of throttle body. Install mixing body onto throttle body. Install ISC servo and bracket. Install connector bracket to throttle body and clamp ISC connector into bracket. Install damper and throttle return springs.
Insert new seal rings (flat side up) into mixing body. See Fig 1 . Install new "O" ring onto injectors. Install injectors into mixing body, pushing injector down firmly by hand. Injectors may be color coded. Blue or Black injector has a large orifice and is installed on right side of mixing body. Gray or Brown injector has a small orifice and is installed on left side of mixing body.

Fig 1: Installing Mixing Body Seal Rings
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Insert diaphragm into injector holder. Install spring and cover, and tighten screws. See Fig 2 . Install new "O" rings onto fuel pressure regulator and position unit onto injector retainer. Check retainer filters for obstruction or damage and replace as necessary. Install injector retainer and push down firmly. Gradually and alternately tighten screws to specification.

Fig 2: Installing Diaphragm In Injector Holder
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.