Collective Wisdom ...

[GregH]

Thanks folks for all the ideas!

Yesterday was finally a bit warmer day (+6C woohoo) and so popped to the boat out with a manual impact driver. A little penetrating fluid and about 5 minutes per bolt and they were all free. Nice handy little tool!

[ndutton]

Good news. The question now is how do you plan to refasten so this never happens again?
Hint: NOALOX is your friend.

[edwardc]

Good news. The question now is how do you plan to refasten so this never happens again?
Hint: NOALOX is your friend.

Or TefGel too.

[GregH]

Good news. The question now is how do you plan to refasten so this never happens again?
Hint: NOALOX is your friend.

Well.... The simple answer is, they won't be going back on there but on there anchor platform I'm building. There they will be through bolted with nice backing plates.

The picture is of the test fit of the platform after the chocks were removed.