I have a very small leak on an older 16 foot bowrider. I think it may be coming from one of the lower outboard bolts. I don't want to remove the motor unless its totally necessary so I was thinking of putting the boat on the trailer and removing the lower bolts and completely filling the holes with a sealant and reinstalling the bolts. Has anyone tried this before with any success ?? or is there any other quick fix suggestions. Thanks in advance.