Engine And Fuel Tanks - Columbia Coronado 25 Owenrs Manual

5.4

ENGINE AND FUEL TANKS

The engine should be set in prior to decking the boat, however it may be
set in through the main hatch if installed later. The engine exhaust should
also be set in place before the deck goes on.
The engine is installed on the engine bed that is molded into the hull liner in
accordance with the hull drawing. The propeller shaft is fastened to the engine
with a solid flange. For the S-28, 5-36, and 5-50 the shaft is enclosed in a
bronze shaft log tube which has a Cutlass bearing in the aft end. A hole or
slot is cut in the hull to allow this tube to go through the hull. The forward
end of the prop shaft tube is coupled to a stuffing gland by a short piece of
steam hose, using stainless steel hose clamps at each end.
The engine should be moved to its correct location, set on its mounts, and
secured temporarily with stainless steel lag screws.
The prop shaft may now be put in place by pushing it through the prop tube
from the outside and the shaft flanges coupled together. The shaft should be
free from horizontal and vertical pressure so that the shaft turns freely.
The stuffing gland should be at least 2" aft of the engine flange in order
that the packing gland can be opened for the installation of packing. The
prop shaft tube should then be bonded in accordance with CSP-00-9054. Then
fair out the bonds by sanding. Fill the small voids with body putty, sand,
gelcoat, wet sand and buff.
For other Sailcrafter Yachts using a strut type aft bearing the strut
shall be mounted in accordance with CSP-00-9051.
The fuel tank is installed in its compartment by sanding the gelcoat from the
sides and bottom of the compartment and filling the space between the tank and
the compartment walls with Micro Balloon filled resin. Mix to about the
consistency of pancake batter and catalyze with no more than 2% by volume of
resin. Mix well before pouring. Fill up to from 2-3 inches from the top of the
tank. This locks the tank in. The fuel fill line is run in accordance with the
plumbing drawing.
Drill the proper size hole in the deck to receive the deck fill fitting. Bed
the underside of the deck fill fitting with polysulphide and, holding the
vertical flange on top of the deck, fill fitting facing forward, insert the
fitting and screw it down. Connect the fill hose and fill
SECTION 5
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