METAL BODY REPAIR - OD1653 - LESSON 2/TASK 3
LESSON 2
OPERATIONS REQUIRED FOR
GLASS, RADIATOR, AND FUEL TANK REPAIR
TASK 3. Describe the operations required for proper fuel tank repair.
CONDITIONS
Within a self-study
environment
and
given
the
subcourse
text,
without
assistance.
STANDARDS
Within one hour
REFERENCES
No supplementary references are needed for this task.
1.
Introduction
Fuel tanks for motor vehicles are made of terneplate ranging in thickness
from No. 24 (0.0156 inch) to No 18 (0.050 inch) U.S. standard gage, and
joined by welded seams. Fittings such as the filler neck, drain valve, and
fuel line connections are soldered to the tank.
Baffle plates inside the
tank offset excessive splashing and foaming of the fuel when the vehicle is
in motion.
Figure 37 (on the following page) illustrates typical
construction for a fuel tank. Leaks may occur in the seam welds or soldered
joints because of vibration, strain, or faulty construction.
Occasional
leaks in the tank itself are caused by sharp objects such as stones or bolts
picked up by the wheels of the vehicle from the road which can be thrown
against the fuel tank.
2.
Types and Construction
Fuel tanks are made in various shapes and sizes, from the smallest for
outboard motors to the largest rail tank cars. The most common type of
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