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zmk1962

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Everything posted by zmk1962

  1. As KC said pelagics - tailor, bonnies, kings, salmon etc Just check the action before you troll in case it has a preference to spin like a propeller otherwise expect an almighty tangle. Making your own metals was all the rage a few decades back. I still have a few I made like the two knife handle ones below that I used off the beach, off rocks and the boat fir the above species cheers Zoran
  2. Well at least I can vouch for that brand of robovac - there was not a corner that was not visited, not a chair leg that wasn’t cleaned around, not one spot that was missed …. 😔
  3. I wish I could !!!!! 🤣
  4. Remember no matter how bad it seems, someone else has it worse … … or has to shovel more sh.t A recent event in my household. Cheers Zoran
  5. Interesting ! Generally engine manufacturers would advise you to stick with the one that lets the motor reach WOT. The difference in performance may be due to the efficiency of the props - thinner blades have less friction giving higher revs, stiffer blades have less distortion giving higher thrust etc. But having said that, you would need to ensure that you are running the optimum size and pitch for your motor+boat combination. If I was observing that, I'd check the following: 1: both are not spinning to 6600 (WOT) which may suggest you are a tad over-propped, but 6500 is very close 2. The 6500 prop: does it provide good/acceptable holeshot? 3: The 6500: does it show any signs of cavitation marks on the low pressure prop faces? ...and if 2: and 3: are good, then I'd run with it. Cheers Zoran
  6. Further to what Noel said - remember that HP is calculated, and only Torque is measured. HP = Torque(ft/lb) x RPM / 5252 Up to Max HP RPM the motor is generating ever increasing amount of Torque, measured on a dynometer. At Max HP RPM the motor is running most efficiently, converting the maximum amount of fuel energy to Torque. Beyond Max HP RPM the motor still generates Torque but instead of increasing, the amount of Torque is decreasing, as the engine becomes less and less efficient --- higher RPM means more friction, less time to inject, combust, expel ... everything starts to run inefficiently. So Torque production drops off (but some torque is still there) so your still experience boat acceleration but the rate of acceleration is slowing down, until you eventually hit terminal speed. Look at the chart below as an example and you will see the different HP rating (blue) calculated at different RPM based on the Torque (orange) measured at that RPM (the curves always cross at 5250). Cheers Zoran PS - HP is just a term invented by James Watt so that he could equate the Torque produced by his steam engine (the worlds first motor) to the work output capability of a draught horse. Power = Force(lb) x Distance(ft) in a linear scenario. With Rotational movement, distance traveled is a function of RPM hence the HP formula that takes that into account.
  7. Aaargh. Just came up on news.com 10km starts from 5pm today. https://www.news.com.au/national/nsw-act/news/nsw-limits-outdoor-exercise-tightens-other-restrictions-as-sydney-coronavirus-outbreak-continues-to-grow/news-story/fcb7eafaa68c452a86e6a74ba10f9fb8 bugger me why news papers are ahead of government web sites
  8. We posted at same time Donna. The 10km is not in the covid link July 9 update. Anyway if you need to please delete my post if it’s confusing.
  9. Top stuff Bob and Julie ... great report, photo and outcome. Now Bob are you sure you "let" Julie catch the biggest fish ... Cheers Zoran
  10. Agree that the event be canceled given the low community immunity and current situation. As KC said above it would have been great to reschedule but I think the logistics involved for all vendors would have been insurmountable. Regarding Boat Shows in general- I like them and have attended several. I also got great deals - Merc 200 fully installed, stressfree anchor winch and accessories etc etc. At the last show I attended 2017 there were only a few boat vendors that didn’t let you onboard. But at least I got to eyeball and visually compare different rigs and setups at most a few hundred steps from each other versus driving kilometers across suburbs. I suppose boat shows like any trade shows are what you make from them. If you have done your homework and a ready to do a deal on a specific product then there is no better place - the vendors are there to do business and at least recover the show costs. If you are undecided between products it’s a great place to run between stands and do your final comparison. If you’re just window shopping for ideas or to catch up on tech developments go for your life- every vendor there is keen to discuss their stuff. If none of these apply to you - don’t go - but also don’t diss them. You can always go for a test drive or touch and feel session with your chosen dealer after the show. The shows are really what you make of them. cheers Zoran
  11. …. Because contact tracing became easier and more accurate. cheers Z
  12. Top stuff Dave. Glad you got out and landed some scale. Oh I dunno but I think yelling accompanied by vigorous gesturing is exercise for sure. Bit like karate kiai shouts during a coda methinks ! cheers Zoran
  13. A class job Frank ... you should be proud of it ... Cheers Zoran
  14. One of each on port and starboard sides I like tools easily accessible. The gaffs have a plastic tube threaded over hook to prevent inadvertent accidents - the tube also stops the gaff catching onto stuff until ready to be used. The first few seconds of this video show how easily the gaff plastic tube is moved to the side to expose the gaff point. Cheers Zoran
  15. Glad you got out Bob ... any day you can get out on the water is still a top day - definitely beats the cancelled days like I had to pull on you today ! Till next time .... Cheers Zoran
  16. Top stuff Fabian! Now I don’t know if to praise you or to berate you. I’ve spent last two days cleaning up my workshop and everything I pick up to throw out just gets moved around as it looks like a project - and now you go and add another few ideas !!! Aaargh. Anyway, keep it up- it beats ping pong. cheers Zoran
  17. Well it really does sound like poor quality given both you Bob and @back cruncher are experiencing shaft failure ……(hmmm that just doesn’t sound right whichever way it’s written). @wrxhoon1’s sureflo seems the way to go. cheers Zoran
  18. Hey Bob I now recall you mentioned this when we were out on my boat. You’ve seen my set up. My live tank 360gph Rule bilge pump also pumps my deck wash and bait board tap. Generally the pump is on even when underway and only gets turned off when back at ramp. I’m onto the 2nd pump in 25yrs - this last pump has been in service 15yrs approx 300hrs. Unless quality has really dropped off there may be something astray in your set up. From my understanding these pumps do not tolerate back pressure well, so is there something restricting water flow. Are your pumps failing mechanically (eg at the impeller, casing water ingression) or electrically ?? cheers Zoran
  19. Just depends Adrian. It's not time driven. More driven by the conditions: ambient temperature, temperature of the engine block, temperature of the cooling water (at present less than 15C), condition of thermostats ... etc When the tell tail is warm, they are open. Agree ! Once I had bits of shell come out of mine after flushing ... never had it again... must have skimmed a sand bar on that trip or sucked some in driving on / off trailer at ramp. It's hard to make conclusions from once off observations. I'm sure sulfamic acid would have dislodged some deposits off the metal ... that's what its designed to do ... I'm just not sure if the motors internals gaskets, grommets, plugs etc were designed to have sulfamic acid exposure. When I asked the motor dealer - blank look - and a restatement that the manufacturer recommendation was to use fresh water. Agree 100%. Only use what you need is my motto. Cheers Z
  20. I always flush for 15-30min on fresh water. There's a lot of unpacking/cleanup that can be done in that period so I overlap flushing time with other activities. If the motor is still warm its a 15min flush, if I have had to leave it overnight then it gets a good 30min the next day. I ran a Merc 200HP EFI 2st from new 1999 for 21 years and a Mariner 15HP 4st from 1998 for 22yrs. Thermostats were changed every 2-3yrs, impellers 18months, poppet valve on 200HP 5-7yrs. There was only minor build up of scale/salt around the thermostats. Both motors were in excellent condition and after inspection sold at about half of their original purchase price. The 200 was always flushed with double-sided muffs and the 15HP with its proprietary attachment (underside of ventilation plate). I am not a fan of flushing in a bucket or container unless there is a constant feed of fresh water to the lower leg... not just toping up the bucket. Salts and minerals dissolve into water until the water reaches a saturation level (the max amount of dissolved material it can hold)....as the water becomes progressively saltier it takes longer and longer for any remaining salt to dissolve into it. So you best bet is to always have fresh water contacting any remaining salt. If you arr re-using the same water from a bucket you will ALWAYS leave some salt behind. I have not used any aftermarket flushing solutions or vinegar mix on any of my outboards. While compounds like sulfamic acid are great for removing hard water scale (usually a calcium deposit) from metal (ie its used to remove scale in hot water jugs, steam irons etc) I just don't know what effect the sulfamic acid or other compounds have on the rubber seals and other components inside the engine. The manufacturers recommend a clean water flush. That's what I do and its worked for me. The 200HP was very loud and I was VERY self conscious of the noise when I flushed it for 15+minutes so I made this silencer/muffler which reduced it to the same level as an idling car. Noisy long flush problem solved. It fed water to the double muffs and also into the muffler to act as a sound baffle. Video link is in the old post. The 4strokes are quieter than a lawnmower so don't have this issue. Salt flushing - copious fresh water is your best friend. Cheers Zoran
  21. You got out on the briny, caught a feed and saw some of mother natures magnificent creatures. Sounds awesome to me mate. Top job. cheers Zoran
  22. Good job all around, joining FishRaider, taking mates fishing and landing and cooking a haul 👍👍👍 Doesn’t get much better than that! cheers Zoran
  23. 👍👍 Morning or arvo? Pretty sure we went through there 50-60kmh and my eyes are fixated on watch out for rowers and sailing skiffs. Did you see the extra whale watch crew member ?? — cheers Zoran ps - apologies to OP for digression
  24. Excellent! We’ll done. Bet you’re already planning the next sesh. cheers Zoran
  25. Hmmm. I think you have my boat confused with another. My barrycuda is a Fibreglass hull. I do have a custom ally/stainless/plate glass hardtop bolted on. cheers Zoran
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