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wheels

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Everything posted by wheels

  1. There are two forms of Tsunami. One is formed when a large mass of Sea Floor moves due to say an Earthquake or underwater landslide, or an above water landslide that falls down a steep hill side into water etc. These are slower moving "Displacement" waves and tend to be Waves of significant height. Japans big Tsunami was one of these. These type do not tend to have the same energy over distance, so they dissipate the further they travel. They can be seen even in deep Deep water as a wave. The other form is as a Shockwave which travels through water at fantastic speeds. Usually as fast as 900
  2. I can only assume you all have seen this story. I did not hear about it till early hrs of this morning. So late afternoon, around 5.30PM our time, an underwater Volcano in the Tongan Island group has gone up with a bang. Serious, not being over dramatic here. Tsunamis have been washing ashore over the Islands and officials are very concerned for Peoples safety. I viewed a Satellite image in the early hrs of this morning of the explosion. The Shock wave around it moved out for thousands or square kilometres. Then the most amazing image. I though at first it was just due to the picture bein
  3. PM Island Time. He is pretty good at such stuff.
  4. In my engineering days, I was taught that any Alternator above 85A should be doubled belted. In a Vee belt situation that is. Graham sold me a 140A Alt and said no they were fine up to 140. I was sceptical at the time and now after having run it for some time, yes it chews through belts and you have to tension belts far too tightly to not be a major issue to side loading. So I stick to my view that anything 85 and higher should be double belted. Also, unless they have a new regulator that has changed the type of Alternator required, when I bought mine, we had to go for a modified Car Alt.
  5. I agree with non spill, but AGM is he better choice for start rather than Gel. Gel is not so good at giving up the juice. AGM performs a little more like FLA with faster Amp production in a high draw situation. But if cheap is the key point here, then FLA will always be the cheapest.
  6. All the BMS does is monitor each cell and balances the charge to each individual cell. Apart from that, it is pretty dumb. This happens in all Lithiums, even EV ones. When it comes to the likes of the EV batteries, there is additional software on the vehicle than controls the more important charging/discharging parameters. This software is different between manufactures of course. But even then, I know of many vehicles that allow the bank to be charged to 100%, when it is known that this limits the overall life of the Bank. I guess it is more about marketing the range rather than life of the b
  7. The marine versions are built with power boats in mind. They have to handle a lot more pounding and thus are internally supported better hence the price difference. For a sailboat, the hammering is not an issue, so an ordinary start battery is just fine.
  8. The golden rule is to always replace copper washers. As said, it is likely to be a swaged end. But it is not uncommon for fuel injector lines to crack. So check that the leak is from the actual seating and not a crack iin the tube at the nut. If it is the swage part leaking, then they need a new end swaged and that is a specific tool. A deisel guy should have one. Or you can buy new fuel lines.
  9. I can only add a little to CD great information above. Not all Lithiums are created equal. Even though there are some cheap ones out there, they are cheap for a reason. Be very careful on what you buy. Plus, you might be able to discharge a lithium deeper, but that does not mean it is good for it. Regular deep discharge still shortens their life. Fully charging shortens their life. Leaving sitting at full charge shortens their life. Heat shortens thier life. And they are just too darn expensive to have a reduced life. They need careful monitoring to get the maximum life expectancy from them.
  10. Some lines need to be drawn BP and I am using Fluro Paint and a broad brush for this one. 😀
  11. By the way, now that I have made my "Hi Mom, I'm Home" announcment, Moderators please feel free to delete this thread if you think you need to. I understand completely that it does not fit the Rules. You won't get any complaints from me at all if you feel you have too.
  12. I have not been around for sometime. I got a little tired of some attitudes here and decided I needed a break. Plus I had been called upon to provide (positive and correct) information about the Covid issue and the Vaccine and so on for a couple of large organisations. A long story of why and won't go into it here, apart from say that I have had 2yrs of researching it all and have several medical proffesionals I am in constant contact with that help with Information, Data and moderation of the reports I have been providing. But I will say that arguing against the nutters that pop up that bel
  13. Try an old spring bed frame. You can usually find them at second hand shops. You can also buy large seives of varying hole size for screening dirt by hand. They are cheap and can be found on Trademe.
  14. Slightly off, but related. Who owns the old wharf at the old yard now and is it still usable, or is it closed off. I note that the Shed is still there, but the area nearer the road now has new Homes built on it. With Wharf access with deep water being limited in the Bay, I have always wondered if Jorgensons Wharf was still usable. I used to be in the Chandlery game back in the days when the yard was operating. The guy I worked for was related to Pop. Thinking back, Picton was a thriving Boat building industry. So many businesses no longer existing now.
  15. Why is it too expensive to defend here, as against defending overseas. Is it a situation of being able to get bigger and better sponsorship if they are overseas? I would have thought the cost of taking everyone and everything offshore would be far more expensive.
  16. wheels

    Westport

    All three of the major rivers need on the coast need reat care and the best of weather before considering entering. Westport has a Bar that shifts, but it also has a Harbour master that can give you advise before entering. He can also Close the entry if deemed too dangerous, although the local Fisherman have " educated" Harbour Masters in relation to who deems whether the Mouth gets closed or not. 😉 Greymouth is deeper and I have never heard of it being closed. But the Seas can be spectacular and down right dangerous on that one. Hokitika I have never been too and cannot give accurate inform
  17. wheels

    Fiddly Repair

    Another idea. I don't think the slides of the top hatch slides back that far. So you could squeeze some glue into the cracks and fix that part, then screw a small piece of SST in the track behind the cracked area to stop it being broken out again. You will need some SST thick enough(say 3mm) to tap a thread into and then use two countersunk machine screws fitted all the way through from the front and into the SST plate. Both screws will have to be to the side of the slot of course. The plate could have a L shape bent into one end to encapsulate the slot around its front edge to protect it all
  18. What I am meaning is that the combined load of all stays around the hull trying to pull the boat into a Banana is 80T. For instance, the Americas cup mono's have some 70t of load trying to Banana the Hull. All that force pushing down on the mast and onto the Keel. The 80T figure is what I remember the lad saying when he was first tensioning the rig up. I must say I was shocked at first and also shocked at the diameter of the wire used.
  19. First car was an HA, then I went to an HC.
  20. Not sure it is fair to blame on build/design issues. For instance, the first Cat that lad bought was one of three out of several thousand, that still had the rigs standing. That was one of the reasons they chose the boat. The Hull was swiss cheese and that should have been the glaring obvious for Not choosing that boat. It had been hammered hard up against other Hulls or jetty or something. These Boats have absolutely enourmous loads on the stays. This is not exact, but I am not far from the correct numbers when I say a 45ft'r has some 80 tonnes of loading on the main stays, which are trying
  21. Listening to an engine is as accurate as pointing your finger into the air to predict the future weather. It tells you which way the wind is blowing and the rest is a guess. But testing an engine is not simple and thus not cheap. A compression test tells you not a lot more than the finger. You need to get a " Leakdown" test to give you the real info. Then a good look internally with a bore scope at the manifolds and exhaust etc. A test of the oil and a test of the coolant. It's not a simple job. Or you simply use your finger so to speak and do the listen test and get an educated guess as to ho
  22. The Turps comment was for " wet" adhesive. Which is usually recomended on many of the products for clean up. Acetone doesn't seem to hurt the Acrylic immediately. But I found that some acrylic had crazed in areas that I had also used either thinners or Acetone when I installed it. I had just assumed it may have been the solvent that caused the damage. That is simply an observation though.
  23. I do suggest the use or turps for cleanup. I have noticed any acrylic that has been wipped with Thinners seems to craze much earlier than acrylics that have not. Maybe it is coincidence, but I have always wondered if thinners may remove something from the Acrylic surface that causes UV to break it down faster. The issue of using the sticky tape stuff is the UV attacking the Adhesive over a long time and likely causing the tape to release eventually. The Sika products use a paint on stuff that is actually about stopping the UV from attacking the Sealant, not just better adhesion to the acr
  24. wheels

    The Walborg

    In the news articlew, the name is spelt Walbourg. Can you confirm which way it is spelt.
  25. Wow, a great example of people not looking before posting. The very answer being in the thread directly below this one.
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