Opel 1900 1973, Service Manual

Page: 333 / 625

42 1973 OPEL SERVICE MANUAL
EXHAUST SYSTEMS
ALL MODELS
CONTENTS
Subject
DESCRIPTION AND OPERATION: (Not Applicable)
DIAGNOSIS: (Not Applicable)
MAINTENANCE AND ADJUSTMENTS: (Not
Applicable)
MAJOR REPAIR:
Page No.
Exhaust System (All Models) . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque Specifications
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAJOR REPAIR
EXHAUST SYSTEM (ALL MODELS)
R e m o v a l
1. Remove exhaust pipe from exhaust manifold.
2. Loosen front exhaust pipe to clamp and
pull exhaust pipe out of muffler.
3. Remove muffler damper rings.
4. Remove center exhaust pipe clamp. Remove rear
and tail pipe(s) as an assembly. See Figure
5. Remove front exhaust pipe clamp, and remove
front muffler and center exhaust pipe as an assembly,
then remove center exhaust pipe from front
The front and center exhaust pipe are one
piece on production-built cars but are separate items
for service, the tail pipe of the and GT, has
a dual pipe with one resonator.
Installation
Check rubber damper rings for muffler and tail pipe
hanger and replace as necessary.
1. Coat I.D. of rear inlet neck and O.D. of
center exhaust pipe outlet (rear of pipe) with exhaust
sealer compound (several brands are currently avail-
able on the market).
2. Insert center exhaust pipe into rear and
tighten clamp.
3. Coat I.D. of front muffler outlet neck and O.D. of
center exhaust pipe inlet (front of pipe) with exhaust
sealer compound.
4. Insert center exhaust pipe into front and
tighten clamp.
5. Install muffler and tail pipe assembly on rubber
damper rings and tighten hangers. See Figures
and
6. Install front exhaust pipe into muffler. Do not
tighten clamp.
7. Be sure to install gasket between exhaust manifold
and exhaust pipe. Using bolts with washers, attach
the exhaust pipe to the exhaust manifold. Torque to
15 lb.ft.
8. Align exhaust system and tighten all clamps.
9. Check alignment of exhaust system; make sure
that the exhaust system components have at least
clearance from the floor pan to avoid possible
overheating of the floor pan.
SPECIFICATIONS
TORQUE SPECIFICATIONS
Exhaust Pipe to Exhaust Manifold 15