Briggs & Stratton BIG BLOCK EFI, Repair Manual

Page: 127 / 142

Section 5: Removal/Installation 123
Installation
1. Lightly lubricate fuel injector O-rings with
clean engine oil.
2. Install fuel injectors into intake manifold.
3. Install retaining clips to secure fuel injector
caps to fuel injectors. Orient retaining clips
as noted during removal. Be sure retaining
clips are fully engaged.
4. Install two hex fl ange screws to fasten fuel
injector cap fl anges to intake manifold.
Tighten screws to 104-122 in-lbs (12-14
Nm).
5. Install two hex fl ange screws to fasten
fuel rail clamps to intake manifold. Tighten
screws to 78-96 in-lbs (9-11 Nm).
6. Connect fuel injector connectors. Push in
green secondary locks to secure.
7. Firmly push quick disconnect fi tting onto
fuel pump module. Gently tug on fi tting to
verify that it is properly seated and secure.
8. Turn ignition switch ON for two seconds,
and then OFF for 10 seconds. Turn the
ignition switch back to ON and check for
fuel leaks.
9. See Air Cleaner Assembly, Installation.
10. See Access Cover/Blower Housing, Instal-
lation.
CKP Sensor
Removal
1. See Access Cover/Blower Housing, Re-
moval.
2. Remove two Phillips screws to release
CKP sensor bracket from cylinder mounting
bosses.
3. Disconnect CKP sensor connector.
Installation
1. Start two Phillips screws to fasten CKP
sensor bracket to cylinder mounting boss-
es. Alternately tighten screws until snug.
2. On side opposite electrical connector,
install mounting plate in groove of CKP
sensor housing.
3. Insert CKP sensor into bracket. Align hole
in mounting plate with hole stamped “61”
on bracket. Install TORX screw and tighten
to 25-35 in-lbs (3-4 Nm).
4. Loosen two bracket screws and adjust as
necessary until gap between CKP sensor
and fl ywheel tooth is 0.030 inches (0.76
mm).
5. Alternately tighten CKP sensor bracket
screws to 22-35 in-lbs (3-4 Nm).
6. Connect CKP sensor connector.
7. See Access Cover/Blower Housing, Instal-
lation.
Air Cleaner Assembly
Removal
1. Remove plastic knob to release air fi lter
cover.
2. Remove thumb nut from threaded stud.
3. Remove metal retainer plate.
4. Remove air fi lter element.
5. See A of Figure 5-20. Remove upper hex
fl ange screws (1-2) to release air cleaner
backplate from ECM/fuse block bracket.
6. Remove lower hex fl ange screws (3-4)
to release air cleaner backplate from fuel
pump module bracket.