NOTE: Safety glasses should be worn at all times when working
on or near the exhaust system. Older exhaust systems will almost always be covered
with loose rust particles which will shower you when disturbed. These particles
are more than a nuisance and could injure your eye.
Whenever working on the exhaust system always keep the following in mind:
- Check the complete exhaust system for open seams, holes loose connections,
or other deterioration which could permit exhaust fumes to seep into the passenger
compartment.
- The exhaust system is usually supported by free-hanging rubber mountings
which permit some movement of the exhaust system, but does not permit transfer
of noise and vibration into the passenger compartment. Do not replace the
rubber mounts with solid ones.
- Before removing any component of the exhaust system, ALWAYS squirt a liquid
rust dissolving agent onto the fasteners for ease of removal. A lot of knuckle
skin will be saved by following this rule. It may even be wise to spray the
fasteners and allow them to sit overnight.
CAUTION
Allow the exhaust system to cool sufficiently before spraying a solvent exhaust
fasteners. Some solvents are highly flammable and could ignite when sprayed
on hot exhaust components.
Annoying rattles and noise vibrations in the exhaust system are usually caused
by misalignment of the parts. When aligning the system, leave all bolts and
nuts loose until all parts are properly aligned, then tighten, working from
front to rear.
When installing exhaust system parts, make sure there is enough clearance
between the hot exhaust parts and pipes and hoses that would be adversely affected
by excessive heat. Also make sure there is adequate clearance from the floor
pan to avoid possible overheating of the floor.
