FUEL TANK
AND
EXHAUST SYSTEMS
8-18
CORVETTE
FUEL TANK
INDEX
Page
General Description.
. 8-18
Service Operations
8-18
Fuel Tank
8-18
Gauge Sending Unit
8-20
Fuel Lines.
8-20
GENERAL DESCRIPTION
20 GALLON TANK
Fig.
21
—Corvette Fuel Tanks
The Corvette
is
equipped with
a
standard
20
gallon
(approx.) tank
or an RPO 36
gallon (approx.) fiberglass
tank
(fig. 21). The
tanks
are
installed
at the
very rear
of
the
vehicle, convenient
for
direct fuel filling into
the
tank.
The
tanks
are
held
in
place
by
two metal straps
at-
tached individually
to a
removable
gas
tank frame
sup-
port.
Two
guides
at the end of
the straps
are
adjustable
for securing
the
straps onto
the
tank support. The tank
support
is
secured
to the
frame rail with flat washers,
lockwashers, bolts
and
nuts.
The
tanks' rest
on six
felt
anti-squeak pads.
One pad
centers
on the
rear frame
crossmember
and one at
each side
on the
same cross-
member.
At the
same rear location two pads
are
placed
on
the
tank
at the
metal support strap (rear) attachment
location
and
another anti-squeak
pad
cemented
on the
support
at
the front
of
the tank.
The fuel tanks
are
equipped with
a gas
gauge metering
unit,
a
fuel pickup, fuel strainer
and
vent line.
If it be-
comes necessary,
the
tank
can be
completely drained
by
removing
the
fuel pickup hose which
is
located
at
the
bot-
tom
of the
tank,
or
by removing the metering
for
quicker
draining.
A pressure vacuum type, positive vented design
cap,
conforming
to
I.C.C. regulations,
is
used on both regular
production
and
optional fuel tanks.
The cap is
inter-
changeable with past model tanks
for
service replace-
ment purposes.
SERVICE OPERATIONS
FUEL TANK
CAUTION:
IF THE GAS
TANK SHOULD
BE
REMOVED
AND
INSTALLED, CARE SHOULD
BE EXERCISED
TO
AVOID PUNCTURING,
DROPPING
OR
DENTING
THE GAS
TANK.
Removal
(20
Gallon Tank)
WARNING: FIRST REMOVE BATTERY
CABLE.
1.
Remove
the
spare tire from tire carrier.
2.
Remove spare tire carrier bolted attachments
and
carrier
(fig. 22).
3.
Remove
the "U"
bolt attachments
at
both rear tail
pipe
(See
Figure
23).
4.
Separate
the
exhaust system
at
the transmission sup-
port crossmember
by
loosening
the "U"
bolt nuts.
5. Remove both rear muffler brackets from
the
frame
and slide
the
muffler system rearward.
CHEVROLET CHASSIS SERVICE MANUAL
