[C320-list] Masthead sheaves - access

[Denny Browne]

I think you can get a schematic off the charleston spar or rig-rite websites of the masthead. NG1 masthead seems to ring a bell. 

But, your probably right, that the messenger line jumped the sheave behind the roller that is the last thing the spinnaker halyard runs over before leaving the mast. 

From atop the mast, you might try a coat hanger with a little curlicue twisted on the end. Or, just force it by pulling the opposite direction. If the messenger line breaks, you'll have to run a new one to reeve the halyard, but that isn't that hard. I'd pay a rigger to fix it before dropping the mast.  

And ditto the recommendation for bigger messenger lines next time. 

Denny Browne
310.408.9591

Sent from iPhone, sorry for typos, grammar, etc...

> On Mar 22, 2014, at 2:00 PM, Graeme Clark <cg at skyflyer.co.uk> wrote:
> 
> When we de-rigged our boat last winter we attached a thin ‘mousing’ line to the spinnaker halyard so we could draw it back up the mast this spring when we re-rigged.
> 
> It jammed!  I think what happened is that as the join of the halyard and mousing line went over the sheave in the masthead it jumped it and the thin mousing line wedged between the edge of the sheave and the side of the block.
> 
> I’ve been up the mats to have a look, but  - unlike the boom end - the masthead sheaves and blocks are enclosed with a ‘cap’ and both view and access are minimal.
> 
> Does anyone have any bright ideas how to undo this jam in situ or do we have to un-step the mast?
> 
> Thanks
> 
> Graeme
> #303, 1996, Falmouth, UK