The shortest life items in the exhaust system are the hoses. Remember all
rubber hose has a finite life. They all need to be inspected regularly and
should be replaced before they actually begin to fail. The hose clamps
should be inspected and re-tightened as needed. The other likely suspects
include the following:
1. Flange to manifold gasket.
2. Exhaust riser (Welded fabrication of Stainless tubing that connects to
the manifold flange on one end and connects to the exhaust hose on the other
end. It is wrapped in a heat resistant cloth (fiberglass maybe). The
wrapping can be removed to inspect for leaks, holes, corrosion. etc. Catalina
direct sells these for big bucks.
3. Water lift muffler (these rarely fail unless subjected to freeze damage
due to improper winter lay-up)
Andy Dalzell
Cat -27 # 6298
Sandusky Bay
