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finefurn

fiberglass
Reducing hole size for thru hull

2 posts in this topic

I am adding a chart plotter to my Hunter 27. I intend to use the current thru hull speed sensor location for the chart plotters transducer. The question is that the current sensor has a hole diameter of 2", the hole diameter for the chart plotters transducer is 1 1/4". What is the best or preferred way to make up the difference in hole size. The dead rise block that the transducer will be mounted to measures 2" x 8" so it will just barley cover the original hole. Would epoxying in a spacer made fiberglass or some sort of acrylic to act as a reducer bushing work. Would there be a need to bevel the sides of the bushing/hull before epoxying in.

Thanks for your help
Marty

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I would fill in the hole with epoxy and milled glass fibers, then re-drill the correct size hole.

 

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