Hunter 310 1998. Tried getting other 310 owners to chime in on the specific forum but not much luck.
Tried to replace outhaul and was blindsided by a block hidden in the boom. I thought it was just a straight in then out 1:1 purchase. It seems there is an eye inside the boom where the rope is fixed. There are 2 mystery rivets near the fwd end on the side of the boom but the only way to access this seems to be drilling out the rivets that atach the boom end cap and removing the cap. Is this something Hunter (or Selden) would have done?
Hey sorry, I haven't been as active on here as I could be. But now that I have the exact same problem, you have my complete attention! I have a 99 H 310 and recently inadvertently pulled the outhaul out of the boom - no knot in the end of the line. Sigh.
I've been trying to track down some kind of drawing of the inside of the Selden boom because the manual says 'not shown for clarity' (of the outside rigging). (Just when you need a different kind of clarity...)
So needing to rethread the outhaul through the boom, I assumed also that it was just a straight run through the boom (because that's how the outhaul came out and must be how somebody previously had rigged it) so I used an electrician's fish to push it back through. I've since discovered there's a block in the middle. Looking in with a flashlight, it seems jammed in a somewhat angled up position and the outhaul we had put back in will now not budge in the aft direction. The mainsheet and reefing lines are now also rough to pull through in either direction.
For your particular situation, I've read on other posts that, yes, drilling out the rivets at the mast end of the boom and then screwing back on is the only way to get the boom end off. As for the 'mystery' rivets you speak of do you think they're holding the eye? And are they about a foot or so back from the mast end of the boom? (Just guessing. I didn't look at this on mine.)
Can you please tell me if the block slid out easily? I just assumed that it was anchored at the bottom. Also, when I look in with a flashlight, it looks to be a double block, one sheave on top of the other.
I wasn't aware that the boom had an eye inside! Can you please tell me if it's on the bottom or side of the inside? Do you think the block is attached to it or is it just to run a line through?
I've also just written Seldén US to ask about the inside of the boom.
Maybe if we bat thoughts back and forth, we can figure this out together. I'll also keep searching other posts.