derek.oboyle 7:03pm, 16 May 2009
Help!, does anybody have any detail pictures of the bolt / pin retaining the mast to the deck plate - putting the boat in the water next w/e (23may) and whilst doing final checks was unable to located this bolt / pin !!!
The hole(*2) on the deck plate seems to be 10mm (circular) and the matching hole(s) in the casting at the base of the mast seems to be an elongated or oblong hole (10mm by 19mm) - presumably to allow setting the mast angle.
So my questions - is it 10mm diameter, is it a bar or bar with head and how is it secured
Any help gratefully received - I can forward pictures of the base plate and mast base
Snoopy463 10 years ago
Sounds like the same as on Snoopy. All I have is a nut and bolt to hold the mast in position. Can you put a picture up on the site.
Skykomish E29 10 years ago
I appear to have something missing on my mastfoot too but have never given it a lot of thought there is a hole just forward of the securing pin on the deck plate, I assumed that it was to prevent the mast hinging back , like a locking pin. Will be going to boat tomorrow so will photograph this area if I remember.
NormanKlipspringer 10 years ago
From memory my step is held to the mast with a bolt. The deck plate has one vertical fin and the base of the mast has two. I assumed that the oval hole was to allow for some adjustment and to make it easier to insert the bolt - I didnt think it was wear. I dont put the bolt in until the mast is up. I just use some rope to hold the step and mast together while lifting. This is just a precaution to avoid undue stress on the step. A friend of mine on a Hurley 22 with similar step broke the step while putting the mast up. The mast decided to have a mind of its own and slipped sideways. Fortunately he was able to get the alloy step welded. He now uses rope whiloe in the host.
busy home [deleted] 10 years ago
I think you might be right Norman. although chilles was worn all ways ,,not a true oval.. Goskar and snowgoose are round holes,,
I still dont like your rope through the hole idea ,,,, If the uppers are near tight the mast cant lean far ,, hence straining the fitting ..
the shear forces on the rope must be huge,,,
Do you mean you put a rope through the bolt hole or tie via the mast and other holein base?
busy home [deleted] 10 years ago
To answer Derics question ,,,, nothing on the achilles is metric all imperial ,,,, but the bolt only locates the mast ,,, the weight is on the bottom to plate ,, Therefore exact size is not too important,,,
NormanKlipspringer 10 years ago
Rope is through bolt hole. I align the holes first with a screw driver or similar and the rope is tied tight to keep the holes in alighment and avoid shear forces. When I do this I have found that the mast does not move much relative to the deck plate, but I do keep my eye on it when raising the mast.
I have found that if the shrouds are tight any problems with bottle screws twisting or shrouds catching on something always seems to occur at that critical time when the mast is half way up. I always have my shrouds slack or at least as slack as the bottle screws will reasonably allow. This does allow the mast to move sideways to some extent but not so far as to lose control. I have always found that the shrouds need to be slacker than when taken off and cannot be fully tightened until after a shakdown sail when things have settled. If the shrouds are new then I would err on the slack side when putting the mast up.
Skykomish E29 10 years ago
I have uploaded pictures of my mastfoot if it is of any help
Skykomish E29 10 years ago
Rear view of Mastfoot
Skykomish E29 10 years ago
Aeolus Mastfoot
NormanKlipspringer 10 years ago
This is similar to mine although the turning blocks are very different. I have used the 'spare' hole as a point to secure a block for the spinnaker downhaul. This is a better option than using the block on the deck aft of the forestay. I think you could also use the 'spare' hole to secure a pole to use when lifting/lowering the mast. What the original intentions were I do not know.
Amrum 9171Y 10 years ago
Yes, I did intend to use it for the demasting kit from my Sun 2000 whern I put the mast up on the Achilles, but chickened out, as I think the mast weighs at least twice as much, and I thought the pole might not take it. It's on my list to make another stronger pole when I can find an old mast, boom or spinny pole to cannibalise, and I will use that 'spare' hole to attach it.
derek.oboyle 9 years ago
Just doing some prep work before season. Somebody loaded up a photo of a painted (black) mast foot - this happens to be the same as mine and I have a question regaring the bearing - has anybody dis-assembled the mast foot? - do the four stainless pates just knock off after undoing the screws? what is behind them? it is just a shaft which carries the rollers on bushes? - I ask because my uphaul seems hard work - I though the bearing function in the mast foot needed looking at
Any thoughts?
rothwell_neil 9 years ago
All of my pulleys were seized when I got the boat, WD then oil and then pipe wrench eased them. Once they would move a bit I then just used a short length of halyard and just pulled one end and then the other whilst keeping tension. This soon eased them and they are running free now.
derek.oboyle 9 years ago
Chillipepper Hi, - checked out your photostream - the mast foot I refer too is yours 'Snowgoose' - did you refurb the mast foot? did you take off the four stainless steel plates? do you kniw what the bearing config is?
Sorry for the rook of questions - nervous about working on the mast foot - any help would be appreciated.
busy home [deleted] 9 years ago
derek,, yes Ive refurbished Chilles Goskars and Snow Gooses mast tops and bottoms ,,! Yes remove the small plates ,these retian the ss pin that the pullies revolve on, WD 40 and tap out with a slightly smaller punch, The pulleys will probably be well worn ..
I turned new ones from nylon, (stops squeaking ) Very basic
construction , Ive also removed the whole assy. from the mast as Goskar had a birds nest halfway up stopping the halliard going up,
(A bucket full of moss!)
derek.oboyle 9 years ago
Chille pepper, Hi
Thanks for the info. regarding the small plates are these just covers or do they retain the ss pin? - I am going down this w/e to see what the issue is - I previously removed the retaining screws, but the plate (if it is just a plate) seemed reluctant to come off - just wanted to be sure.

busy home [deleted] 9 years ago
I think they retain the pins ,, cant remember for shure..
just tap the plate off,
pjbharrison 9 years ago
Mine's an early boat, sail no. 64.
Took off mast plate last year. 4 bolts through cabin roof and Sikaflex/sealant underneath plate. Just prise it off carefully once bolts are removed, Think I used a knife to break seal
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