Pontiac firebird 1968 - Page 551

8-10
1968 PONTIAC SERVICE MANUAL
NUT 17 LB. FT.
VIEW B
VIEW G
VIEW E
4. To install, reverse above procedure. Tighten
front muffler U-bolt clamp 18 lb. ft. torque. Tighten
tailpipe front U-bolt clamp (behind muffler) 18 lb. ft.
torque. Tighten tailpipe to resonator U-bolt clamp
33 lb. ft. torque.
Fig. 8-12 Tempest Single Exhaust System
V-8 ENGINE
SINGLE EXHAUST SYSTEM (Figs. 8-12 and 8-13)
NOTE: Coat inside diameter of front muffler
opening and tailpipe flange with sealer before in-
stalling muffler.
Tailpipe-- Remove and Replace
1. Loosen front (behind muffler) tailpipe support
clamp, on Firebird models tailpipe must be cut off
of muffler, it is a welded connection.
2. Remove rear tailpipe support U-bolt.
3. Remove tailpipe and, if necessary, disconnect
resonator from tailpipe.
4. To install, reverse above procedure. Tighten
tailpipe front bracket clamp (behind muffler) 18 lb. ft.
torque. Tighten tailpipe to resonator U-bolt clamp
33 lb. ft. torque.
NOTE: Coat inside diameter of tailpipe flange
with sealer before installing.
EXHAUST MANIFOLD CROSSOVER PIPE-
REMOVE AND REPLACE
1. Disconnect crossover pipe at right and left
manifold.
2. Loosen crossover pipe to exhaust pipe U-bolt
clamp.
3. Remove crossover pipe.
4. Install crossover pipe by reversing above pro-
cedure. Tighten crossover pipe to manifold bolts
33 lb. ft. torque. Tighten exhaust pipe to cross-
over pipe U-bolt clamp 33 lb. ft. torque.
NOTE: Coat outside diameter of crossover to
exhaust pipe flange with sealer before installing.
Exhaust Pipe--Remove and Replace
1. Loosen crossover to exhaust pipe U-bolt clamp.
2. Disconnect crossover pipe from exhaust pipe by