Monday, December 19, 2011

Rerigging the Mast Pt. 1

This is mainly a collection of before and after photos, (some taken before the mast was unstepped for the first time in San Diego) to show the progress and upgrades to our 47 year old spruce mast.

-M

Photo of mast head before any work was done, shortly after unstepping. Note the wire halyards, crappy wind instrument bracket, anchor light, etc. and really bad paint job.

The after photo taken here in Port Annapolis. While the mast head still isn't quite finished, it is a far cry from the cluttered crappy mess as before. Fresh coat of paint and all.

Different view of mast head with new paint, varnish, new spinnaker bail for spinnaker halyard block, New VHF antennae, new Delrin and composite bearing sheeve turned for Rope halyards. The Main improvement for those that care is the modification of the mast head bracket in which the old strap tangs were cut off and new Lefiell tangs added for the upper shrouds, increasing clevis pin size from 3/8" to 1/2".

Lower shroud brackets removed prior to rebedding. Still good wood underneath the stainless straps.

View of same bracket after polishing and rebedding. Polishing Fastener heads and lining up the flats on the fastener heads makes a small but noticeable difference.



Picture of the mast and lower shroud tangs before polishing and rebedding.

The Lower shroud tangs rebedded and polished.


Tang for spinnaker pole uphaul polished and rebedded.






Spreader brackets and bolt for lower shroud tangs. Notice the nut on the bolt is barely engaged on the threads. Was hand tight when removed.
All stainless hardware rebedded. New stainless bolt machined by Dynamic Marine Machining, in San Diego. New bolt is clear shank throughout and features nut and locknut that engage fully.






Polished stainless.

Old cast bronze steaming light with stainless steel guard to protect it from old wire halyards. This light and bracket were polished, the light was reamed out and lamp base replaced with new Perko bayonet base.

One modification included taking a jig saw to the upper spreaders and cutting close to nine inches off both spreaders. This will allow us to sheet the jib in closer when sailing upwind and make the rig more visually balanced. After cutting the ends off, the raw ends were epoxied and a copper plates fabricated to keep the shrouds from wearing into the wood. Looks nice finished and polished, however, they will be covered in leather later on.






Old Turnbuckles

Polished turnbuckle. Yes, I did polish each old bronze clevis pin after inspecting for pitting. I am a cheap bastard, even new S.S. pins are fairly pricey and don't look as cool as polished bronze on bronze. Unfortunately these will all be covered with leather as well once the mast is re-stepped.

Turnbuckles polished, threads cleaned, and clevis pins poished. Interstingly enough for those that care, the threads on a 1/2" turnbuckle were not a standard 1/2-20 or 1/2-13 but rather a custom 1/2-16 which made cleaning the bronze female threads difficult without the use of a tap.



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