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Posts: 392
Location: KY | I want to install a Lowrance temp and speed sensor on a Ranger R70. I have two problems related to the contour of the transom.
First, the shape of the transom where I want to install the unit forces it to be at almost a thirty-degree angle to the centerline of the boat. Will this give me false speed-readings? Theoretically the speed would read slower than actual. I plan on using it at trolling speeds. I can use the primary speedometer with a pickup on the motor for high-end speeds. Will the angle damage the unit? If I need to I could make a custom wedge to straighten everything out.
Second, Is it OK to drill four holes in this area below the waterline? Because of the curved shape in this area of the transom I doubt there is much behind the outer layer of fiberglass. Is it OK to drill through? Can I keep it sealed with silicone? Is there some sort of adhesive for this application rather than screws?
Anyone have similar experience with mounting accessories on the transom of a bass boat?
Thanks,
Bruce
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