1975 Ericson 27

Mechanical Equipment

I had to retrofit all the accessories. Since I was converting to a heat exchanger, I decided I should install a seawater strainer. I opted for a bronze Groco. The original blower was gone, and I went for a much higher flow inline Rule blower. Part of this was converting from 3 inch to 4 inch duct work. The only thing difficult about this was the cutting of the deck ring to fit a 4 inch Nicro fitting on the tiny "deck" area behind the winches on the E-27. The original 3 inch duct hole was there already, so we had the fun of trying to enlarge it off center and fit an odd deck too narrow deck shape. Increasing from 3 to 4 inches increases flow (this is an "open flow" blower rating) from 135 to 235 CFM. My design for the heat exchanger conversion required an expansion tank. I used one off a 2 litre Alfa Romeo engine. It was a case of being convenient and saving money. It's mounted in the same port locker as most of the other auxiliary equipment.


Alfa expansion tank, Groco Strainer, Rule Blower	Better shot of the Groco strainer. This location was selected for height above waterline and being near centerline	Perko fuel filter, suction to blower from bilge, seawater intake for exchanger hidden behind seacock for cockpit drains	Early shot of heat exchanger. Much was done after this was taken
	The seawater pump mounting location required I make a hole in the engine compartment for the suction side.	Pump with pulley and alternator back in place

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Last update: 5/8/04