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Bad Kitty

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Posts posted by Bad Kitty

    New engine choice

    in TechTalk

    Posted

    On 7/02/2021 at 8:58 PM, Jason128 said:

    Seems to me there’s a LOT of extra work in changing the drive configuration, I bet if you add it up, you could swap replacement saildrives in agin in 10 years and still  be better off.  I would look at how much extra work and cost you are creating for yourself - especially when there are bolt in replacement options.  You are talking about being out of the water for a week vs 6-8.

    remember nothing is without maintainance....  theirs still seals, thrust bearings, and all the other fun stuff to fail

     

     

     

    It's not about the money. I want reliability, the boat is very well maintained, but the SD40's need the cone clutches lapping, sometimes after 200 hours, sometimes after 50. That's not an acceptable situation for me.

    I'd rather spend the money up front, and not have to worry that it won't last the xmas period. 

    New engine choice

    in TechTalk

    Posted

    21 hours ago, Fogg said:

    I’ve just had clutch cone issues with my SD50 (which affects SD40s the same way). My understanding is that the upgrade kit addresses the majority of the issues (slipping cones and oil seal expansion etc).

    Also I understand a move to SD60 is a popular option - a fundamentally better clutch system but it requires some boatbuilding work as the mounts are different.

    Like you I like Yanmar engines and have several over the years with had good experience apart from this SD50 issue. My plan is to do the SD40/50 upgrade and see how well that lasts - and then probably change to SD60 medium term.

    Hiya Fogg, I've heard of issues with the SD60's also, at very low hours too. And my big issue is that Yanmar NZ have proven that they won't stand by their product, so that's the deal breaker for me.

    New engine choice

    in TechTalk

    Posted

    11 hours ago, Tamure said:

    a conversion is not going to be cheap or quick. Its a new installation from the engine beds upwards unless I am mistaken. Not sure about the sd’s but a friend has an SD20 that’s been in the boat for 30 years trouble free apart from oil and anodes.

    Yep SD 20’s are fine, everything bigger from Yanmar is junk.

    And yes, changing the drive system is somewhat involved. But I know what’s involved, I’ve run the crap SD40’s for 14 years, and I’m happy to spend the money. 
    Wheels I don’t see any diesel over electric systems that offer an advantage over more conventional drives at present.

    Thanks for the input all, I do appreciate it.

    New engine choice

    in TechTalk

    Posted

    Ok open the popcorn.

    we’re changing the 40hp Yanmars in Bad Kitty.

    I want similar horsepower, but we’re going V drives & shafts.

    what experience has any of you had, good or bad, with various engines?

    I really like the Yanmar engines, their sail drives are sh*t & the won’t stand by them, but the engines are great. So they are probably the front runners.

    But it’s  a chance to look around though, and see what options we have.

    Lombardinis are a lot lighter, but I don’t know much about them?

    and with the greatest of respect, if you don’t have genuine technical input, or experience about the subject, please head over to small talk for some great trolling opportunities?

    Thanks, 
     

    Saildrive Raw Water Flow Causing Flooded Engine.

    in TechTalk

    Posted

    5 minutes ago, CarpeDiem said:

    An exhaust riser also solves it. 

    Are your shutoffs wired to be closed when power is present? I would be worried about these closing unintentionally due to a power failure. 

    I'm more worried about engines full of salt water every time we sail over 15 knots to be honest. Which is a lot.

    In 15 years & 30,000miles we've had exactly zero power failures to the ignition circuit. Which doesn't mean it won't happen, but you can only have so many redundancies & fail safes built in?

    Saildrive Raw Water Flow Causing Flooded Engine.

    in TechTalk

    Posted

    Anti siphon loop won't stop it. We have electric shut offs between the saildrive & the raw water pump that close & stop raw water flow when the key is off. 

    It's not siphoning, its pressure pushing the water past the impeller, and filling the engine. Slow cruising cats won't do it, but it seems that somewhere above 12-15 knots sailing there's just too much water pressure and you end up hydraulicing engines. We did it several times before we fitted the shut offs, luckily Yanmars seem to love salt water. Not very pleasant though in a seaway removing injectors, cranking things over, raw diesel in your face etc. etc.

     

    5 weeks at sea +14 days Auckland Quarantine

    in MarineTalk

    Posted

    21 hours ago, NorthlandYS said:

    . Certainly does make me wish we were happy and free in Fiji and lending other cruisers a hand getting ready for this storm instead of dealing with this mindless bureaucracy!

    Head out of the Harbour & turn left. Fair winds & all that stuff. Oh, there will be 2 weeks in quarantine when you arrive there, like everywhere else in the world at present, so maybe take a book?

    5 weeks at sea +14 days Auckland Quarantine

    in MarineTalk

    Posted

    1 hour ago, NorthlandYS said:

    my point here is that Customs are not following their rules and apparently have Carte Blanche to alter people’s life’s as they deem fit.

    Yep, great isn't it? Means that we are in a totally different situation to most of the world. And shortly you will be enjoying that freedom behind the very same borders you're currently bitching about. Happy Xmas!

    Looking for a Gori prop blade 16x12 RH

    in MarineTalk

    Posted

    6 hours ago, DrWatson said:

    Might be wrong but I think the boat B00B00 sailed to NZ was always planned to be imported and sold when they got here. I don’t think his choice is necessarily anything to do with euro vs Nz production. Pretty sure if there was a pogo 12.50 at the right price he’d be all over it like a virus at a GOP convention. 

    Haha too funny, and too true.

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