Exhaust Systems

Whitby delivered most of the boats with a standpipe exhaust system but most boats have since replaced these with a waterlift muffler. Here's a piping arrangement for the Atomic 4 with the waterlift muffler in the port sail locker.

exhaust pipe diagram (Full-size pdf also available.)

Note: Since drawing this, I've made a mixing pipe using a Groco hose barb (1-1/4" thread to 1-1/2" hose). I drilled an angled hole which I tapped for a 3/8" pipe nipple. This avoided brazing.

Also, I put everything together with pipe dope to avoid leaks.

Cruising the Chesapeake: A Gunkholer's Guide cover Cruising the Chesapeake: A Gunkholer's Guide

My favorite Chesapeake Bay guidebook. While it mentions marinas, it concentrates on anchorages—the kind of places I prefer to spend my time. And in addition to listing shore facilities, it rates each location for Beauty/Interest and Protection. This is the guide you need to really cruise the Chesapeake Bay—a smorgasbord of small creeks and coves.

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Last modified: Saturday 19-Jun-2010