I have a Gunn euro pin uni base with a long pin, and have a small pin to replace it with (also Gunn). There is a locktite glue that is on the existing pin, anyone had a go at replacing one? clockwise thread or anti-clockwise?
Just holding it as it is with one hand on the mast base and using a spanner in the other is not really making it budge........
ideally a vice to or something to hold the base in place then you can apply your effort to the spanner to loosen the pin the longer the spanner length the easier it is.
Hmm.... got no vice... and chances are would mangle up the rubber and nylon straps in the vice too........
Hoping someone has done this before cleanly.....
ive used a heat gun, paint stripper type ,not oxy
this softens the locktite, just be carefull not to use too much heat and damage the rubber.
how much is too much,how long is a piece of string?
pliers like this will spread the load better than a vice.
wrap some insulation tape aroud it or a piece of car tube and use a pair of these. right on the end, not around the middle.
I had the same problem with one of my extensions when I changed to this base and i just drilled a hole in the extension.
Another reason Chinook tendon style is better than Boge (hourglass) uni.
Heat the pin as mentioned, about 100deg will do it, and hold the top of the rubber with adjustable pliers and it should be not too hard.
just a generalisation of the reliability situation to follow;
boge hourglass tendon = good
chinook hourglass tendon = good
chinook cup = good
neil pryde cup = good
europins = not so good
cylindrical tendons = not so good
a wise man once said (on many an occasion) "he who uses 'euro pin' only has himself to blame"
there are lots of threads from the past on here about it. there aren't many folk who give their gear a decent flogging who will praise europin or the cylindrical tendon, though not all europins are created equal
Tightly wrap rope or even an old shirt around uni till it bulges and use multigrip pliers to hold it firmly if vice is not available. You can usually break the Loctite with this method without heating it....unless it was assembled with Red Loctite which would be insane for whoever applied it.
i tried to get one of those boges appart once. it's basically impossible. just cut it out and invest in a new boge, not that expensive really.
also found that the plastic nut set in the rubber was cracked, with no way to visually inspect it, i'm steering clear of them.
Ah 
I'm always buying things that need to be fixed...... why can't windsurfing gear all be generic fittings.......... windsurfing engineers pay attention
