Peterbilt 365 - Fuel System

3. Loosen the two rearmost M6 hex
socket head screws on the lower
clamp.
NOTE
The two forward screws secure the
cover to the base. The two rearmost
screws provide the clamping force on
the main support tube.
4. Rotate the main support tube
rearward to provide clearance to
remove and replace the air cleaner
filter element.
CAUTION
To prevent possible engine damage,
torque the four hex nuts attaching the
air cleaner cover assembly to the body
assembly to 8 lb-ft (10 N·m) after in-
stalling the new air cleaner filter ele-
ment.
5. After installation of the new filter
element, rotate the main support
tube forward and reinstall the upper
stabilizer rod to its mounting
bracket.
6. In any sequence, tighten the upper
fasteners to a torque of 13 - 17 lb-ft
(17 - 23 N·m).
7. Tighten the two rearmost screws in
the lower clamp to a torque of 4 -
4.5 lb-ft (5 - 6 N·m).
Exhaust System
The exhaust system is part of the noise
and emission control system. Periodically
check the exhaust system for wear,
exhaust leaks, and loose or missing parts.
For details on how to maintain the
emissions components in the exhaust
system, see "Noise and Emission Control"
in your vehicle operator's manual. Please
refer to the engine operator's manual for
more details on how to maintain the
emissions components in the exhaust
system.
Engine Mounting
CAUTION
DO NOT re-torque or reuse existing
flange head bolts. These bolts are fac-
tory set to the specified torque. If bolts
are loose or damaged, they must be
replaced with the new bolts. Failure to
comply may result in property damage.
Periodic Inspection: Inspect engine mounts
every 60,000 miles (96,000 km).
Check for the following:
• Inspect both mount and leg
fasteners. Check for loose or
broken bolts. Replace as
necessary.
• Check mount and leg for fractures,
breaks or deformation. Replace as
necessary.
• Check for complete insertion of
motor mount. Replace as
necessary.
• New leg to mount flange head bolts
should be torqued to 210-230 lb-ft
(284-311 N·m).
Fuel System
Location of Fuel Shut-off Valves
Fuel shut-off valves for the fuel crossover
line are on the bottom of the secondary
fuel tank, at the crossover line connection.
They are optional on the primary fuel tank.
MAINTENANCE - Fuel System
248 Y53-6076-1D1 (09/20)
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