I'm fairly new to my older Hobie 18 and am having 2 problems. Hoping to get some advice before I go out and just start replacing things:

1) forestay swivel sticking - once the rig is tensioned, the upper forestay on the swivel has trouble turning. So when the sail is unfurled, the stay is twisting, causing the sail to want to furl back up like it is spring loaded.

Do I need to replace the swivel or should some lube do the trick? (and if lube, what kind is best?)

2) Jib halyard jumping the block - a couple times my jib halyard wire has decided to jump out of the block, and get jammed in between the sheave and the wheel of the block. Do I just need a new block or can this be somehow tensioned?

I'm sure I could just replace all of these parts but I would like to save the $ if possible.

Thanks - djm