DEEP V Miami 55 Instructions
Prestwich Model Boats
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View  of Transom showing tube/strut position
Dimension A . 12mm.
Dimension B 2 to 3mm (offset to the right)

 

  General Layout. Fuel tank could also be fitted in front of the engine
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.wpe1.jpg (122947 bytes)  click the pic for a closeup
 
Sparkplug to transom with Zenoah 430mm to 460mm ( transom is the vertical part of the back of the boat.). The front part of the deck opening should be cut away to give good access to the pull start handle.

Join hull and deck together with fibreglass paste. The outside edges of the lip may not align correctly, so try to align the actual edge of the hull and deck. Cover the lip with fibreglass paste and clamp the top and bottom together with bulldog clips or spring type clothes pegs. For racing it is a good idea to put a layer of glass cloth and resin around the inside of the hull/deck joint and then the lip can be removed completely. For sport use this is not necessary. Fit the engine to the complete rubber mount assembly and position it where shown but do not glue in place yet. Fit the coupling to the motor. The Strut MUST be fitted at the position shown on the brackets. . Check the drawing above for the position of the tube through the transom. Using Zenoah engines the propshaft should be offset to the right by mm as shown on the drawing. Drill an undersize hole for the prop-tube in the ‘V’ of the transom. Enlarge the hole with a round file until the tube just fits through it. Seal the tube exit through the transom with silicone tube or silicone sealer. Cut off the lower rudder arm and fit the strut assembly to the transom using the four M4 screws provided and reinforce the inside of the transom if required with a plywood plate or fibreglass mat and resin. Fibreglass the front end of the tube in position at the same time as fitting the engine mount making sure that the tube lines up with the engine coupling. Cut the prop tube to length so that it is about 10 to 12mm from the coupling. Cut the flexi to length, remembering to leave a gap of 5 to 6mm (not less than 5mm) between thrust washer and the strut. Do not cut the flexi too short, because it has to go inside the coupling. The fuel tank can be fitted in front of or behind and to the right side the engine. Hold the tank in place with rubber bands through hooks fitted to 2 strips of 3/8" wood glued to the hull. The engine can be held temporarily in place with Plasticene whilst the engine mounting feet are tacked in place with thick cyano (superglue). Cut down the feet or pack them up as required. The flexi should slide smoothly into the coupling, to be sure of correct alignment. Fix the mounting feet in position with fibreglass paste. This can be reinforced with fibreglass mat or tape if required. The inside of the deck hatch opening in the deck should be cut back until the hatch fits into it. Fix the hatch down using GA8 hatch fasteners or similar at the rear. At the front, glue to rods or a plate onto the underside of the hatch to locate under the front edge of the hatch opening. Reduce the width of the the lip of the hull with a hacksaw and finish off the edge with coarse production paper or a sanding disc. Fit rubbing strip (GA28) if required to the lip with cyano glue. When the installation is complete, give the inside of the boat a coating of fibreglass resin ti fuel proof it. The radio box can be fibreglassed in place. Only use balanced / sharpened propellers. We recommend Octura props. The lower fuel nipple on the carb is connected using the tygon (yellow) tubing to the fuel tank feed pipe.  The nipple on top of the carb is an overflow pipe for excess fuel from the primer bulb. 
For Zenoahs and other petrol engines use 1/4" flexi with 1/4" stubshaft.

 

 

BACKPLATE OF ENGINE WITH PULLSTART OMITTED FOR CLARITY. DRILL 2 EXTRA 4mm HOLES IN THE BACKPLATE

 
 

 

 
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