mast shims fell out Tartan 30 - Page 2 - SailNet Community
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post #11 of 15 Old 07-28-2009 Thread Starter
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thanks for the great info

I just refurbished the hydraulic backstay tensioner that will tension the backstay between 1800 to 2400 lbs.
Is there some sort of accomodation i can make for this when wedging in the mast ? I note that the rear wedge ,on the stern side of the mast is crushed , and the front one , to the bow side of the mast was missing.
thanks for any advise
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post #12 of 15 Old 07-28-2009
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Spartite

Spartite is a great product. Using it eliminates the chance of pressure points developing, as force is dispersed around the mast step cavity rather than concentrated on one or two wedges. It has the added benefit of greatly reducing water ingress.
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post #13 of 15 Old 07-28-2009
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Not to hijack the thread, but we have a similar issue on Carolena, our Pearson 303. It sounds like ramminjammin's mast is no longer centered in the partners. Our mast is in much the same situation - wedges fell out of the aft side and the mast is up against the partners on the fore side. Can the mast be re-centered before putting in new wedges or spartite by loosening the forestay and tightening the backstay? We've never had the mast pulled - it was like this when we bought the boat. Looking up the mast, it is otherwise alligned (you would never know the problem unless looking under the mast boot or up through the deck from the saloon). The keel step does seem to have slots where the bolts could be loosened and the step moved fore or aft a bit, but I assume that would require a crane lifting the mast enough to take the weight off the step (not really an option anywhere near us).

Knotty - good point on the friction point between the mast and deck. I'm going to make it a point to inspect that area once the mast is back in center.
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post #14 of 15 Old 07-29-2009
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Not trying to hijack the thread, but could some of the uneven mast positions in the decks be from deck/hull misalignment at the factory? I can't imagine every deck is attached to the hull with tolerances of less than maybe 1/8".
I'm just speculating, but I've seen a brand new Cadillac with 3/4" of shims between the fender and the cowl because the chassis wasn't straight and it seems that it would be easier to build a 20' long car precisely than a 30' boat.
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post #15 of 15 Old 07-29-2009
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I don't think that is the case, at least not on our boat. There is quite a bit of clearance between the mast and deck, so even if things were off by a bit, there would still be room for shims. I think our problem is that the last time the mast was pulled it wasn't centered correctly when reinstalled.
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