5-3
TAILPIPE RECOMMENDATIONS
An exhaust tailpipe is
not
supplied because of varia-
tion in length requirements between RV manufac-
turers. Prior to installing an exhaust tailpipe, refer to
the following recommendations for additional tips
and safety considerations.
Use 1-1/2-inch O.D. (1-3/8-inch I.D.) 18 gauge alu-
minized steel or stainless steel tubing for the tail-
pipe.
WARNING
Exhaust gas presents the hazard of
severe personal injury or death. Do not use flex-
ible exhaust tailpipe since it can leak or break
due to road shock or vibration. Do not terminate
exhaust system under the vehicle. Direct ex-
haust gases away from any window, door, or
compartment openings. Do not operate the gen-
erator set without an exhaust tailpipe.
Use U-bolt type automotive muffler clamps marked
1-3/8 and double rubber, U-shaped shock mounted
hangers for supporting the exhaust system. (See
Figure 5-3.) If the tailpipe extends beyond 1-1/2 feet
(0.46 m) from the muffler, attach one or more auto-
motive tailpipe hangers every 2 to 3 feet (0.6 to 0.9
m) of tailpipe run. Support the exhaust system at or
near the perimeter of the vehicle to prevent the pipe
from being damaged and pushed up under the ve-
hicle skirt. Attach hangers to steel framework, not
wood or other floor materials Refer to Figures 5-4
and 5-5 on Pages 5-4 and 5-5 for a typical tailpipe
installation.
CAUTION
Excessive exhaust back pressure
can cause engine damage. If a tailpipe deflector
is used, make sure it is large enough to prevent
back pressure.
CAUTION
Water vapor can cause engine dam-
age. Do not connect the genset exhaust to the
vehicle exhaust system, because water vapor
from one engine can damage the other.
CAUTION
Angular mounting of muffler and
tailpipe hanger brackets can result in exhaust
system damage. Properly mounted hanger
brackets will absorb much road shock vibration
and prolong the usefulness of exhaust system
components. Mount muffler and tailpipe hanger
brackets directly above the component sup-
port, not at an angle. Do not twist the rubber
sections of any hangers.
3/4 INCH (19 MM)
MAXIMUM SLOT
(BOTH SIDES)
FIGURE 5-3. EXHAUST TAILPIPE CONNECTIONS
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