8-2
Reassembly
Reassembly is the reverse of disassembly. Always
use new gaskets when reassembling. Note the
marking on the gasket between the air filter enclo-
sure and the throttle body as to which way is up and
which side is out.
Torque the intake manifold bolts to 19 lb-ft (26 N-m).
If a throttle body through stud came out, replace it
with a new stud having factory-applied thread seal-
ant. Clean the threads in the manifold of the old
sealant. Torque the stud to 5.5 lb-ft (7 N-m).
Make sure the air intake fits through the opening in
the base and that the engine breather tube is con-
nected between the air filter enclosure and the cylin-
der head. To prevent damage to the air filter enclo-
sure, first tighten the two (2) throttle body mounting
nuts (left first) to 4.5 lb-ft (6 N-m) and then tighten
the two (2) support screws.
See Fuel Connections regarding proper hose
clamps and crimping tools when reconnecting fuel
hoses.
THROTTLE
BODY
AIR FILTER
ENCLOSURE
ENGINE
BREATHER
TUBE
AIR
INLET
FUEL
FILTER
FUEL
INJECTOR
MAP
SENSOR
MAT
SENSOR
FUEL
INJECTOR
FUEL
RETURN
THROUGH
STUDS (2)
PRESSURE
REGULATOR
FUEL RAIL / INTAKE
MANIFOLD ASSEMBLY
FIGURE 8-1. FUEL INJECTION SYSTEM—SERIES HGJAA & HGJAD
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