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Hi there. If as you’ve described, where the outer end of the tube is bolted to the hull the only way to do it is to take the boat out of the water, let it dry out, clean it all, then reseal it with CT1 sealant on the boat and behind the flange. If you put the bolts from the inside to the outside, it is easier to tighten the nuts up. Get as many long extension bars as you can and then someone can hold it on the inside while you tighten the outside. If you put plenty of CT1 round the bolts, that will help in the future.
Use lock nuts or double nuts on the outside.
Chris
Technical Officer
Good morning
you need a local rigger to check this out
as it is not a standard rig
is there a bowsprit tensioner down to
the stem
Hi
l am sorry the main boom furling system, I haven’t seen one for a lot of years.
Your best bet is to get a local Rigger to come and have a look at your rig to see what is the best possible replacement or alternative.
Hi
the best one to fit is GZR bronze ball valve
if the skin fitting is ok they can be done
In the water in a emergency but not recommended
Hi there. A boat of that age will be in imperial measurements. You need to dismantle the shaft, take the shaft to an engineering shop where they will run a dye down the thread and also make you a new nut to fit.
Your steering pedestal is mostly likely Whitlock.
Chris – Technical Officer
When I rebuilt my Seaforth I used leather cloth glued to cut and shaped quarter inch ply. If there is nowhere to screw it to under the deck head, then bond some laths in using either GRP matting or CT1 glue. Once these are dried you can screw the panels to them using coloured cup screws of thin hardwood batons. See picture.
I have never fitted midship cleats on a Mac but if I did, I would get a backing plate of either hardwood or stainless steel at least a foot long and as wide as will fit in the tow rail.
Again, drawings are available to full members. You could also try Jeckells- the original sail makers.
Hi Tanya
My preference is for a large Samson type post about a foot back from the now roller, a nice round one with a large base. Don’t use wood anywhere- just silicon between the post and the boat and inside either large washers or a matching stainless steel plate, and two fairleads (one each side) fitted in the same way. A decent size cleat will suffice in the middle if you cannot purchase a Samson post but steer clear of galvanised ones or wooden packets as they rot easily.
Have you looked through the technical articles to find pictures or articles that may help?
Chris – Technical Officer
Hi Charles
i have gone through all the archive materials on line and other things I have but no sizes were ever given for adding a spinnaker pole, only sizes for the spinnaker and cruising chute sails. One method is to get a piece of wood (2×1) and on a still day put the sail out. Push it out with the piece of wood until you are happy with the set of the sail and then have one made to that length.
Secondly, contact the suppliers of your mast. Tell them the make of boat and foot length of Genoa and they will work it out to make one.
As for the davits, you can get swivel davits which are the best for a Seaforth because of the shape of the transom, or have some made to measure out of stainless steel.
When fitting you will need to reinforce the transom with a minimum of 1” plywood and bond it in (or use stainless steel plate).
Chris
Technical Officer
Although I do most of my Mac repairs myself, at this point I would consult a mechanical engineer (who is familiar with this engine) in order to avoid serious damage.
Chris
