installing trolling motor

[basshawksc]

I am about to install a new to me trolling motor and I have been told to different things. 1- I was told to drill the 1/2 holes for the mounts then counter sink them. This is suppose to help you not have spider web cracking. 2- I was also told drill the 1/2 hole and don't counter sink them because that will cause the spider web cracking. When I took my old trolling motor bracket off the holes were not counter sunk, but then again I am going from a pretty light weight old 12/24 Johnson to a Motor guide tr82. Installing the bracket is the last step for me.

[billproxs]

Some reverse the drill untill bit is through gel coat, then continue forward with drill after in glass through. Usually 1/4" holes, big washers used. No counter sinking holes is necessary.

[Transom]

The "countersinking" is to prevent cracking. You are really not trying to countersink anything. You are just removing the sharp edge.

[Jonestrollingmotor]

If you're using the isolators, you will need a 1/2" hole. If using the bolts only, it will be a 1/4" hole. I use a spade type bit (like is used on wood) to drill the holes. The center parts starts the hole, then the outside edges do the work.