Mufflers

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Two inline mufflers deal with the exhaust noise. One was initially installed but was not good enough so second was added. Exhaust is routed to rear of boat.

Air intake boxes

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Air into the console is ducted in from the bottom up into compartment for cooling.

NOTE: THESE INTAKE BOXES ELIMINATED SINCE ENGINE IS NOW MOUNTED ON THE MIDDLE PONTOON WITH AIR SURROUNDING IT.


Air intake boxes taken from rear of boat

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 NOTE: THESE INTAKE BOXES ELIMINATED.

Tilt frame & main frame

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PIcture is of right front tilt frame where it attaches to the rear of the main frame. Pillow block bearings are used for the pivot point.

Left side of tilt frame/main frame

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Pivot frame shaft & bearings

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Six self aligning pillow block bearings reversed to provide a pivot shaft mount for pivot frame. 

Tilt frame and rudders

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Tilt frame weldment completed and rudder assemblies being installed.

Wheel drive chain assembly

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 Drive gear is 16 teeth and Driven gear is 48 teeth (3:1 ratio)


NOTE: THIS HAS BEEN CHANGED. DRIVE GEAR IS NOW 23 TEETH. DRIVEN GEAR REMAINS THE SAME. THIS WAS DONE TO GIVE BOAT MORE TOP END SPEED. TEST RESULTS BY GPS WILL BE PUBLISHED ONCE BOAT IS BACK IN THE WATER.

Hydraulic drive motor, gear assembly

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 Early picture of drive motor, drive gear and bearing stack up.

Tilt and main frame pivot shaft & bearings

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 Pilow block bearing inverted make a nice hinge.

Front rudder

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This is looking through the wheel at the front (flanking)  rudder which is attached to the tilt frame. This was initially mechanically operated but has been converted to full hydraulic via use of a helm pump.

Front rudder assembly

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Rudders are aluminum and notched for paddle clearance. Rudders raise and lower with tilt frame which is very helpful for launching.

Rear rudder (monkey rudder)

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Rear rudder also full hydraulic. It is synchronized with the front rudder and operates from the Bay Star helm pump. Tricky part was getting rudders synchronized and air out of cylinders.

Hydraulic high torque drive assembly

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High torque drive motor mounted on the tilt frame.

Crossmember and main frame weldment

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Main frame runs to center of pontoon and bolts to pontoon crossmembers. Additional crossmember supports and gussets added for strength.

Hydraulic cooler mounted underneath to crossmembers

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Cooler plumbed into the hydraulilc return line before the filter

Hydraulic cooler

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Custom hydraulic cooler

TRI-TOON

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A 3rd pontoon log was made to fit between the original logs. Original logs are 19" in diameter x 24' long. This log is 23 " wide x 25" deep x 14' long. It is notched to clear exhaust, intake ductwork and hydraulic lines. With center pontoon log deeper, it creates a keel for better steering and handling.

Tri-toon, rear view

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Pontoon log on trailer, ready to install One inch square aluminum tubing welded to top of log was added to provide a flat mounting surface when boliting it up to frame crossmembers.

Tri-toon install

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Log being installed by sliding it under deck and across trailer crossmembers. Trailer winch stand was removed so it would go in straight.

Tri-toon install continued

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Tri-toon alignment and mounting

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Log centered and being prepared to be bolted to crossmembers.

Tri-toon install

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A better piciture of one inch square tubing that was welded to top of log so there was a flange to bolt through to the crossmembers.

Tri-toon install finished

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Log install complete. Straps and blocking to be removed.

Close up view of Tri-toon installed

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Note: You can see some of the bolts holding the log to the crossmembers. Addition of this log increased capacity of boat over 2000 lbs and raised it 2" in the front and 1 1/2" in the rear. Balanced boat nicely and improved steering. It also has no affect on the front rudder performance or water flow into the wheel.