Mailport & PS Advisor

Sistering Keel Bolts

I have a keel bolt issue with my 1981 Freedom 33. To bolt the keel to the hull, Freedom set stainless J bolts into the mold and then cast the keel around it. While I was trying to torque one of the six keel bolts (5/8-inch), it sheared off. The rest seem fine. As much as 100 foot-pounds of torque, and repeated hammer blows have not had any effect on them. However, I plan to install multiple sister bolts to be safe. Here is how: Drill bolt holes within a few inches of the old ones, then fill them with fresh water. Drill a small-diameter hole horizontally, from the outside, to intersect the bolt hole. When that "pilot hole" is in the right location, the water in the new bolt hole will run out of the pilot hole.

Mailport 02/01/00

Rubber BulletsWhilst in St. Maarten/St. Martin, on my way back home from an Atlantic crossing, I happened to pass by a gunshop called CaribArm...

Staying Safe While Working Underwater

Say the prop suddenly begins vibrating. First you checked the shaft coupling; they’ve been known to work loose, allowing the shaft to come clean...

Mailport: February 2014

Sailboats have a bit of advantage over their power cousins in that we have more high spots that can be used creatively. In my installation, the diesel vent line (fuel-grade hose) loops high inside at the transom and back down to the through-hull. Through the use of a check valve, air flows out, but intake air comes in through the AVD, which is attached to the underside of the deck; no additional support needed. The unit is readily available for inspection or replacement through the transom locker, and it is not in the way of any equipment that needs to go in or out. Love the H2Out AVD2 vent filter; kudos to Pindell Engineering.