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JET DRIVE INSTALLATION MODELS AT-309 & DOMINATOR 12-S |
| These instructions apply to transom angles from 9 to 16
degrees and from 3/8 to 1 thick and deadrise angles from 0 to 20 degrees. INTAKE CUTOUT The intake cutout dimensions are shown on EXHIBIT F. TRANSOM CUTOUT A transom cutout marking template is available from American Turbine. This template is designed for quick and accurate marking of the transom cutout. You may order the template by calling the main office. When using the template for the very first time always check the scribed cutout marking on the boat against the dimensions given on EXHIBIT G. If the template cutout marking is more than 1/8 inch higher or lower than the dimensions given on EXHIBIT G then adjust the templates bottom pegs up or down accordingly. Without the template, the cutout procedure for the transom should be as follows: a. Measure 2 up the transom 4 outward either side of the transom center line. Mark these two points (EXHIBIT G). b. Scribe a horizontal line between these points. c. Using the transom sealing ring, place the inside bottom edge along the scribed line. d. Hold the ring against the transom and mark along the inside of the ring. e. Cut ½ inside the line except at the bottom where you must cut to the line. INSTALLING INTAKE There are four 3/8 16 tapped holes in each corner of the mounting flange that are used for jack screws. These screws allow for setting of the intake to the proper angle. PREPARATION The coating must be ground off where the bonding compound comes in contact with the intake, also grind the fiberglass around the intake cut-out in the hull. a. Set the intake in the hull with the four jack screws installed. b. The bottom center of the intake at the front of the intake must be flush with the bottom of the hull at the front cut-out. Use the jack screws at the front of the intake to hold your setting. c. Using the jack screws at the rear of the intake to move the intake up or down. Set the machined surface (where the jet unit bolts) at 4-5 degrees relative to the keel. d. Check the intake to insure that it is level with the hull side to side. e. Tape around the perimeter 1 ½ from the cut-out. (This makes your epoxy job look much nicer). f. Mix your bonding compound according to the instructions. Place the compound around the cut-out and also the mounting flange of the intake. g. Set the intake in the hull so the jack screws come in contact with the hull. h. Double check the intake setting. i. Smooth out and fare in the compound to the tape line also smooth out the compound on the bottom side of the intake. j. Remove the tape. k. Wait for the compound to kick-out. l. Drill the mounting holes with a 17/64 drill. m. Counter-sink the drilled holes for Flathead Machine screws. (From the outside of the hull). n. Use bonding compound under the heads of the machine screws to make them water tight. Install screws washers and nuts. INSTALLING TRANSOM HOUSING SPECIAL NOTE: If you are using a HIGH-PERFORMANCE INTAKE you must follow these steps to insure the ride-plate centers up with the bowl. a. Bolt the ride-plate to the intake. b. Bolt the jet-unit to the intake but do not tighten. c. Set the yoke on the ride-plate. d. Move the jet-unit side to side to line up with the ride-plate and yoke. e. Tighten jet-unit bolts. f. With the transom ring and transom gasket held in place on the ring with either glue or tape, slide the entire transom housing assembly over the bowl flush against the transom. A small amount of WD-40 or similar lubricant will help the o-ring to slide. g. You will note that there are two chamfered bolt holes in the transom ring outside the housing. With the transom housing squares up, drill through both chamfered bolt holes with a 17/64 drill. Using the Ό - 20 x 2 FHMS washer and nut, place a small amount of silicone sealer under the bolt head. Install and tighten. h. Unbolt the transom housing from the ring. i. Drill through all the chamfered bolt holes except the bottom center hole with a 17-64 drill. Drill the bottom, center hole with the appropriate size drill for the #14 x 11/4 Flathead wood screw. j. Bolt the transom housing to the ring. k. Connect all cables. Properly installed, this transom is designed to seal without the use of silicone or any other sealant. NOTE: If the transom of the boat is particularly wavy you may want to run a bead of silicone between the transom and the transom ring. |