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About knobblyoldjimbo

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  • Location Cairns, eFfiNQue

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  1. Finding parts

    One of my Maris had a tramp by Baracuta. Also Redhead do one but I don't know what the price is.
  2. New Sails $$

    Tri-radial from Redhead sails (Gosford), Mid North Sails (Port Macquarie).  Cross cut from Eastwind sails (Gosford), Flowers and Adams (Newcastle). Cheapo's from Rolly Tasker but make sure they understand the measurement rules as they stuffed mine up - but for the $850 it cost it was acceptable.  They import to Sydney. Amazingly they stitched the sail then added the battens so there were lots of seams.
  3. Off boom sheeting?

    I tried it once but it didn't feel right. What I did do once on my Careel 18 was chuck the standard 4:1 and replace the traveller with a bridle from side to side with a connector in the centre - sheet was tied off there then went through a spring ratchet block on the boom. Result was amazing - fast adjustment (only 2:1) and easy to manage because the mainsheet effectively started at the windward end of the bridle.  Won a Nationals with it like that.  Did need the vang though - mine was a 32:1 cascade. Maricat nationals coming up next week - we'll see!
  4. Another newbie with a Mari in NZ

    I think Rodney means SWAGE but I guess that depends on what it's been capsized in! Forestays on modern Mari's (that is any one from any time that's used for racing) are 5.5m at the front and 5m at the side. That top mast bit - like Rod says hand span down from the top at the front should be a s/s 'thing'.  On the end of the halyard that connects to the head of the mainsail should be said swage.  The swage locks into the 'thing'.  The end of the wire halyard is then close to the bottom of the mast - I use a bit of thin bungee to connect it to either the mast, or the dolphin striker etc. With the 5.5/5 stay lengths an old sail will be right at the rear beam.  Those who still have them put a D ring about 150mm - 200mm up the leach.  A sailmaker would be best because you need to stitch it onto the sail.  Newer sails have a higher foot. For the dolphin striker tensions apparently (I've not done it) you loosen the rear beam bolts then tension the dolphin cable so that the beam fits straight onto the hull. The base of the mast should have a casting that has a male cone shaped piece.  This fits into a female cone shape on the beam casting. Darcy is your best bet for parts, he's regularly stripping old Mari's.  Mick Colecliff if you want to do luxury new stuff. Is your cat a Mk1 or Mk2.  You tell a Mk1 because it's got a separate traveller at the rear beam.  The Mk2 has the traveller moulded into the beam.  Also the boom is different, a Mk2 has a traveller track like thing moulded to the top of the boom, the Mk1 is just an ordinary boom which can break under big tension (so you use a mainsheet takeoff that's wrapped around the boom, not hung from the bottom). Good luck with it all.
  5. Wanted - Used Mainsail 14ft Windrush

    So.  Probably about $100 to ship the sails.  That's all you want isn't it. 
  6. Wanted - Used Mainsail 14ft Windrush

    Look at Dave's ad below this.  Basically brand new set of sails with a boat thrown in.
  7. I fixed my transom and survived!

    One of my projects this weekend was to fix my transom. I did the following: 1. After trying unsuccessfully to remove the pintle screws I ground them off to remove the pintles 2. I hit the screws a lot (as mentioned by Darcy) which eventually broke away the inside piece of alum moulding.  I had rear hatches which made the whole game possible so first order would be to put these in! 3. I did a lot of pulling out and cleaning up of all the rubbish from inside.  There is quite a big 'lip' all around the deck to hull joint.  I elected not to remove this. 4. I made a piece of 6mm marine ply backing - odd shape but got it so it was close to the transom.  It had to be narrow enough to go through the hatch. 5. I had some triax cloth (three layers, different angles) which makes a nice thick pad of glass.  Cut two pieces. 6. Mixed epoxy resin.  Jimmy Buckland said 5:1 by weight - well I did try and it did certainly get hot! 7. Got the first piece of cloth wet, nice and sloppy. 8. Managed to get it into the hull without dripping too much on the surrounds (if you have to cut new hatches in don't install them until you've put the wet cloth inside - tends to bung up the threads).  Used latex gloves (about 20 of them!) to push the piece onto the transom. 9. With the ply I cut up a lot of fibreglass tape (didn't have any chopped strand) and mixed it into the resin.  This provided a bit of 'bog' to put onto the back of the ply. 10. I put the ply against the mat against the rear of the transom.  I then screwed a s/s screw through the back and into the ply to hold it in position. 11. I wet out another piece of mat and bogged it against the ply.  It was much bigger so it also bogged against the transom.  12. I put some more 'bog' into the drain hole and a couple of pieces of fg tape against the pintle mounting points. 13. Next morning I drilled through the ply. 14. I got some Sikaflex that's been in the freezer for years and pulled some up into a syringe and squeezed it into the holes. 15. 35mm x 6mm bolts with two washers (one standard, one large) and a nyloc nut.  Doing the top screws was VERY hard because I'd left the lip in place but eventually got the thread on and bolted it all up. 16. Got the cheapest Bunnings Colourbond spary paint and gave it about five coats. I think the fact that the original plug for the drain holes that I did with epoxy filler seemed to be loose may have been the main reason for the leaks! Testing next weekend.   J
  8. Cartwheeling (nose diving)

    I'd think: 1. two up and 160kgs is well over the top, not surprising you went over 2. when the breeze comes up we tend to pull everything in - outhaul, downhaul, luff tension - remember that it you tension the jib luff that'll try to pull the mast upright. 3. with rake on a cat rig you have 5.5m forestays and 5m shrouds when in doubt I'd stick to that 4. not seen anyone else fiddle with batten tension - I don't - just set and forget, leave the battens in and tied all the time, we're out of the cotton sail material now! 5. see note 1 I guess when you lose the rig then the boat will land on one side or the other - you got the short straw. Glad you survived it all ok.
  9. Mast base casting (ball and cuff) for Hydra 16

    There is a Maricat 4.3 mast with the ribs - used for super sloop boats.  I think I had one on one of my cat rigged boats - not as flexy or responsive.
  10. Advice wanted on strengthening chainplates...Urgent.

    Good news well done.
  11. Mast base casting (ball and cuff) for Hydra 16

    Just a thought, if the mast section is the same then why not convert it to Maricat - get a base and support - guessing that there may be plenty of them around.
  12. Advice wanted on strengthening chainplates...Urgent.

    David, just do it.  If you ever get to an official race then clear it with the officials then.
  13. Advice wanted on strengthening chainplates...Urgent.

    Those add on brackets on the side stays are interesting.  They appear to be rivetted to the hull.  Since you wouldn't be able to get to the inside because of the storage compartment it must be a blind rivet. I would think that it's the length of the stainless strips that are distributing the load rather than the bracket but I'm not an engineer. My front castings are in a sorry old state but with the 1/4 bolts I hope they'll work. On my Careel 18 it used big U bolts upside down for the sidestays.  One side of mine let go near the end of one race - didn't realise it, just wondered what the bump noise was.  It had corroded through where it was not exposed to the open air (ie through the deck which was ply and glass).  Changed them a couple of times in the eight years I had the boat.
  14. Advice wanted on strengthening chainplates...Urgent.

    I can't see anyone having an issue with that. Building a whole new boat out of carbon, well yes but not small pieces. Do it. Your first responsibility is to make the boat safe. If you make the new piece within a similar weight then I can't see anybody worrying. I don't think the class has an official measurer any more either.
  15. Advice wanted on strengthening chainplates...Urgent.

    On Sweet 16, which was an early mk1 I observed that the bow mouldings were just three al plates. I think it's different now but it crossed my mind that they could be repeated in stainless or sheet al fairly easily.