10
4. Do not route the tail pipe near fuel lines or fuel
tanks.
5. Do not route the tailpipe closer than 3 inches
(76 mm) to combustible material (wood, felt,
cotton, organic fibers, etc.) unless it is insulated
or shielded. The temperature rise (above ambi-
ent) on adjacent combustible material must not
exceed 117
°F (65°C).
6. Do not route the exhaust tailpipe underneath
the oil drain or such that it will restrict the air out-
let.
WARNING
A hot exhaust tailpipe can ignite
oil drain spills causing severe personal in-
jury or death. Do not route the exhaust tail-
pipe underneath the oil drain.
7. To keep the tailpipe from being damaged, do
not route it such that it protrudes into the ap-
proach or departure angles of the vehicle or be-
low the axle clearance line (Figure 7).
8. Do not interconnect genset and vehicle engine
exhaust systems.
CAUTION
Interconnecting engine ex-
haust systems will lead to migration of ex-
haust condensate and soot into the idle en-
gine, causing damage.
9. Do not terminate the tailpipe underneath the
vehicle. Extend it a minimum of 1 inch (25 mm)
beyond the perimeter of the vehicle (Figure 8).
Support the end of the tailpipe such that it can-
not be pushed in and up under the skirt of the
vehicle
.
10. Do not terminate the tailpipe such that it is clos-
er than 6 inches (153 mm) to any opening, such
as a door, window, vent or unsealed compart-
ment, into the vehicle interior (Figure 9).
11. Make sure a tailpipe deflector will not cause ex-
cessive back pressure.
CAUTION
Excessive back pressure can
cause engine damage.
DEPARTURE
ANGLE
APPROACH
ANGLE
AXLE CLEARANCE
LINE
FIGURE 7. VEHICLE CLEARANCES
1 INCH (25 mm)
MINIMUM
LAST TAILPIPE HANGER AS
CLOSE TO END AS PRACTICAL
FIGURE 8. TERMINATING THE EXHAUST TAILPIPE
NO OPENING INTO THE VEHICLE INTERIOR MAY
BE CLOSER THAN 6 INCHES (153 mm) TO THE
END OF THE TAIL PIPE (WITHIN SHADED AREA)
6 in
153 mm
TAILPIPE
FIGURE 9. MINIMUM DISTANCES TO OPENINGS
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