But here we are in March of 2016, with a new mechanical pump installed (on 3/8/16), ready to take MacSkier to Florida. Here are three photos I made of the new pump:

Click photos for larger images.

Fuel pump diaphragm failure in a car is usually no big deal. The pump might leak gas onto the ground. But in a boat, gas leaking into the bilge can be disastrous. Below are two photos showing details of two common ways the failure of marine fuel pump diaphragms can be identified -- hopefully before the boat explodes.

In the middle photo above, notice the "plug" between the two diaphragms. Only one diaphragm is pumping gas, and if it fails (ruptures) gasoline leaks into the space between the two diaphragms, not outside the pump. The plug is closing an opening which can feed leaking fuel one of two "common" ways.

• the leaking fuel can be carried via a tube to the carburator's air intake. See the fitting atop the boat's flame arrestor below?
• The leaking fuel can be fed to a glass sight bowl. Fuel in the bowl indicated a serious problem in a boat I owned prior to this one. The DPO had not noticed this.
• I guess both methods could be used on the same pump.

Click photos for larger images.

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"It needed a little work, but what boat doesn't?"

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Another pretty good web page by Grant MacLaren