Pick a New Engine | What to Look For | Making a Blank | Removing the Old Engine | Disconnecting Systems | Mounts and Coupler | Lifting the Old Engine | Engine Beds | Shimming | Filling Holes | Flat Mounts | Landing the Engine | Exhaust System | Other Systems | Finishing Up
The Exhaust System.
Now that the engine is aligned, it’s time to start hooking up systems. Since you took them all apart and labeled them nicely, this shouldn’t be a major chore. The biggest stumbling block is usually the exhaust system, so we will tackle that first. You probably need new exhaust hose if there is any visible cracking or exposed wire in the hose. You should have an Aqua-lift or similar marine muffler installed with the correct run of exhaust hose. If you don’t do this right you’re taking a risk of the engine back-filling with water.
Use only marine exhaust hose here - it’s expensive but regular hose will not hold up to the punishment, and you don’t want to have a hot salt water leak on your new engine. Consider using T-bar type hose clamps here, and on the stuffing box hoses. They are much stronger and longer lasting than regular clamps. Be careful that the exhaust hose doesn’t have any bends that put strain against the engine. I’ve seen perfect alignments completely mangled because the exhaust hose pushes the engine forcefully down or to the side, compressing the mounts on one side.
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