Anode stud renewal

[Roger52]

Slowly working our way through the list of jobs before she goes back in the water in March and yesterday was anode replacement. We did manage to get the nuts off and remove the old anode but suspect that last time it was done ( before we owned her) the nuts were cross threaded because we can't get the new nuts on. Either we have to try to recut the thread or replace the studs. I think we will be able to shift the nuts on the inside of the hull but that will just leave the studs. I can't imagine that there is a thread in the hull itself. How do we go about removing them? Is recutting the thread on the studs realistic? Any advice would be gratefully received.

 

[rhumlady]

I wouldn't have thought that recutting the threads was worth the effort. Someone on the inside with a spanner on the but and on the outside with a spanner on the square plate should get it off. I did mine with a set of mole grips on the inside wedged against something and me on the outside on the square plate. The problem came when it got loose andthe molegrips sSt after to move around. Going back on was easy as there are two bolts on the anode I use so the bolts were made up onto the anode with the square plate in the slot in the base. Pop it through and wedge it against the hull with a prop the it is all done !from the inside. Removal could be done the same way now I think about it.

 

[Roger52]

Anode thread renewal

I wouldn't have thought that recutting the threads was worth the effort. Someone on the inside with a spanner on the but and on the outside with a spanner on the square plate should get it off. I did mine with a set of mole grips on the inside wedged against something and me on the outside on the square plate. The problem came when it got loose andthe molegrips sSt after to move around. Going back on was easy as there are two bolts on the anode I use so the bolts were made up onto the anode with the square plate in the slot in the base. Pop it through and wedge it against the hull with a prop the it is all done !from the inside. Removal could be done the same way now I think about it.

Unfortunately there is no square plate so nothing to grip on the outside at all. I assume there is just a hole that the stud goes through with the bolts either side and sealant. Is it possible that if we tried to tighten the bolt on the inside it might turn the stud. If we can loosen it getting it out should not be a problem nor is replacing it.

 

[prv]

Undo the nut(s) on the inside and give it a "tap" with a 2lb lump hammer!

Worked for me on Kindred Spirit.

Pete

 

[Ruffles]

Unfortunately there is no square plate so nothing to grip on the outside at all. I assume there is just a hole that the stud goes through with the bolts either side and sealant. Is it possible that if we tried to tighten the bolt on the inside it might turn the stud. If we can loosen it getting it out should not be a problem nor is replacing it.

Replaced mine some years ago. The square plate was buried in the flow coat inside the hull and needed chipping out. Yours may be the same.

New studs are only a few pounds. Worth keeping spare nuts as they tend to bounce when dropped and disappear in the hard core...