Marine Electronics Q&A with BOE Marine - Installing tilted transducer in same hole?

To anyone with some experience on installing transducers:

I have purchased a Garmin 740s with a tiled B60 20 degree transducer and I realize that my plan to use the same exit hole could be problematic. See diagram below. There is only one location where a transducer can be mounted (location A) on my boat.

Note: I am showing location "B" just to illustrate the angle of the B60...but that side of the boat is not viable for an install - no room.

The question I have is this...

Have any of you ever installed a tiled transducer by drilling diagonally (C) across a vertical hole? And if so, has it worked ok, without leaks?

If this isn't a viable option then I guess I could return the B60 and go with a traditional through-hull faired mount. If I do, I'd like to use the original fairing blocks cut for my hull for an airmar transducer I installed in 1998. Are the through-hull transducers still designed with the same dimensions?

Any advice would be greatly appreciated!

Thanks,

Rex C.

The existing vertical hole should be just a 1" hole. If it is just 1" I see no problem with recutting it to fit a B60. I ave never had to do what you are wanting to do, but see no reason why it shouldn't work.

The existing vertical hole should be just a 1" hole. If it is just 1" I see no problem with recutting it to fit a B60. I ave never had to do what you are wanting to do, but see no reason why it shouldn't work.

Thanks, Jim. I will give it a try. Another person said I might insert a 1" dowel to start the hole saw off right...I might do that.

You just need to put a board on the inside of the hull and have somebody stand on it to help get the hole started.

You just need to put a board on the inside of the hull and have somebody stand on it to help get the hole started.

Why?

To get the hole started. Its the easiest way.