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When my boat was fifteen years old, exhaust fumes were coming into the
engine compartment. I found a break in the exhaust pipe that was
hidden with asbestos wrappings. Here are the steps I used to replace
the wet exhaust:
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1. Remove the pipes from the exhaust manifold to the muffler.
2. Take the asbestos off and replace the nipples and elbows
with stainless steel pipes.
3. Check the alignment on the manifold.
4. Fabricate a water jacket around the pipe assembly using 3"
diameter stainless steel tubing with 1/8" wall. |
Water enters the engine manifold through a rubber tube with a
check valve. Next a rubber tube to a 1/2" diameter
stainless steel tube welded in the water jacket. The water cools the
pipe where the hot exhaust is entering. The water follows the pipe to
the end of the water jacket just before the muffler. Water and
exhaust is allowed out through six 3/16"holes in the exhaust pipe .
This makes an extension of the exhaust manifold. (Engine is an
Atomic 4)
Bill recommends a good source for
Stainless Steel:
www.reidtool.com
Bill also
included a picture of his built in waist bucket.
Thanks Bill |
