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Messages - mikenash

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16
Cool.  Good progress.  I wonder if it's the same folks who made an oversized ring for me after a "whoops" at the machinists lol

17
I wonder - since the wheels are cast & the crank is heavy - what would happen if you tried to gas-out a snapped-off gib key?  Apart from it shooting molten crap out at you every time you gave it a puff of oxygen?

18
Waste Motor Oil / Re: filtration by "settling out"
« on: May 09, 2020, 10:31:40 AM »
Hi Ed

Yes, good thoughts

I need "simple" so am just gonna have some plays.  Starting off with a simplified pot-and-heater style device in my exisiting woodstove.  Over the past week I have built all the bits apart from drilling a fe holes through the double-skin 12mm & 10mm sidewalls.  Why did I make it so heavy?

Hope to be up there to have a play next weekend or the one after.  If it works with "ordinary" oil well enough to be the beginnings of a "proof of concept" - then I'll have a play with the heavier oil

Cheers

19
Listeroid Engines / Re: Intermittent starting
« on: April 27, 2020, 07:20:40 AM »
I guess moving the needle clockwise is closing it - leaner?

And if "closing the butterfly" is the same as "choke" - then that is effectively richening it up, too

Which suggests it's starving?  Are all the orifices clean?  That would be my first check, fwiw

20
General Discussion / Re: C-19
« on: April 24, 2020, 09:56:13 PM »
Casey, there are obvious benefits to living on an island

Our small country could possibly be one of the first to "eliminate" the disease (apparently "eliminate" is a technical term, different to "eradicate") if we're lucky, maybe

Perhaps like yours, tourism is a big part of our economy - the single biggest earner last year - and has gone from hero to zero now of course.  People are suggesting a couple of novel solutions:

As soon as Australia gets the virus under control we should extend our "bubble" to include our neighbours - so we can have domestic tourism/travel

We should sell visas to our Safe Haven to the ultra rich for tens of millions of $$ each . . . I keep hearing stories of ultra rich folks who fear global apocalypses and already have underground bunker/mansions in rural NZ and who keep the jet on standby with the engines idling and bags packed 24/7 just in case.  Sadly, I haven't seen one myself . . .

Sadly-er, I have several people in my extended family who are social workers.  Yes, there is a rise in violence.  And there is, and will be, a rise in hunger/child poverty - a tragedy and a national disgrace in a country of plenty, especially plenty of food

A nominal individual who represents the statistics might be a small brown child of, say, ten, living with his mother & siblings in inadequate accommodation where the male in the house is probably not his father, is probably an occasionally violent drunk or methamphetamine user, and the poor wee kid's only escape, normally, was going to school where he was safe and fed and where kind people in the community would find him a pair of shoes or a warm top if he needed one.  Now they're all stuck at home with "dad"

So, yes, we are seeing an increase in domestic violence

It makes me sound like a bleeding-heart liberal, but it gives me the shits that rich folks will come through all this just fine, while poor folks will have hungry kids and will lose their jobs

21
Original Lister Cs Engines / Re: Electric starter
« on: April 22, 2020, 08:50:10 PM »
Hi Steph

I will watch with interest

I donít know much about belt-drives except to know thereís more to them than meets the eye. I was a sawmill engineer for many years & have seen all sorts of odd losses of power due simply to loose/worn/wrong belts

I bet those old SOM Listers had two or three B or C series belts PLUS big driving pulleys on the generator/starter

Good project

22
Original Lister Cs Engines / Re: Electric starter
« on: April 21, 2020, 10:15:23 PM »
Hey Steph just yesterday I was butchering/adapting a Nissan flex plate to do the same job

Itís a common flex plate/tooth pattern - for example it fits Nissan cars but also the same ring-gear on some Chinese diesel singles. I just made a round flat 10mm plate bolted to that & once the machinist is back at work can put a boss in to suit the CS shaft & keyway

A bit like yours - it has been sitting on the ďrandom bitsĒ shelf in the workshop for a couple years. Covid has allowed me to blow the dust off it

But I wondered - what was the advantage of mounting yours to the gen head not the motor?  I guess Iím missing something here

I have the starter here for what was a Chinese diesel single nominally 12HP. I wonder if itíll spin it?  I guess maybe your setup gives you a ďgearingĒ advantage too?

Cheers

24
Generators / What do knowledgeable folks think?
« on: April 14, 2020, 11:16:43 PM »
https://www.trademe.co.nz/a.aspx?id=2597330893&tm=email&et=47&mt=3CD2EA5F-6EC8-4299-AE88-E417DDE97A03

Hi guys

I wonder what folks know about/think of this unit?  The diesel looks to my untrained eye to be a bit like some of the ones you guys have talked about here

It's an open-drive unit, so the gen-head could be re-purposed if the price was right, I imagine

Looking at the 32A outlet and the three 10A breakers maybe at a 50% duty it's 2kVA-ish three phase (if it has 10A breakers then maybe it runs at, say, 5A: (5A X 400V = 2000W) ? Or twice that at 100%?  I'm just thinking what "starting current"-type peak load it would need that it has a 32A outlet as opposed to a 16A one?

Of course my diagnostic skills in this area are crap - and the photos aren't that easy to read eaither

I look forward to being informed/put right/enlightened

Thanks

25
General Discussion / Re: C-19
« on: April 07, 2020, 08:57:02 PM »
Dunno Mike, but my bullshite detector is swinging both ways.

If the guys want to waste pixels slinging crap at each other that's fine by me, what I don't understand is how anyone thinks that quoting a a quote that quotes a quote that's so long no one read it in the first instance is going to reinforce a point of view or a conspiracy that most of us couldn't give a bugger about anyway!

I'm sure there's a site or forum somewhere that would be appreciative, until you you find it, lads, carry on on here, I suspect most of the members on here are old and wise enough not to want to waste one of our few remaining fucks on this sort of drivel.......

Cheers
Stef


Personally of course Stef idgaf
But I suspect itís a phenomenon caused by lack of a sense of humour & covid-induced Time-onthe-Hands sydrome. A very common one atm

26
General Discussion / Re: C-19
« on: April 07, 2020, 09:19:37 AM »
Is it just me?  Or does anyone else suspect that some of us are enjoying irony while others are failing to identify it?

27
General Discussion / Re: C-19
« on: April 06, 2020, 10:11:04 PM »
Looks like Sarah Palin to me

28
General Discussion / Re: C-19
« on: April 06, 2020, 10:57:08 AM »
 ::)  Continuing to Watch with Interest:   ::)

29
General Discussion / Re: C-19
« on: April 06, 2020, 10:09:06 AM »
 ::)  "Watching with Interest"   ::)

30
Waste Motor Oil / Okey-dokey. Trying to burn waste oil
« on: April 06, 2020, 10:01:09 AM »
I need to give kudos to a bloke called Ozzirt (I think he might be Irish) as permutations of his drip-feed, no-fan, no visible emissions, no smoke inside burners are all over the world and all over YouTube

Principle is simple, as stated.  If you have a bit of steel/iron/metal that's close to red-hot and if you drip oil onto it - then the oil will vapourise.  If you have a flame there and a just-right draft, the oil fumes will burn like bloody wildfire - and burn hot and clean by the look of things

The secret to it seems to be creating a good draft - using a long flue, basically - and using that draft to suck controlled amounts of air into the thing so that there's a good fire keeping the drip-plate-thingie hot, and a bunch of secondary-burn air-holes at strategic spots to get a raging column of burning oil fumes heating up a big metal something on their way to the flue.  The big metal something - the "stove" bit  (designs vary from a bit of heavy pipe to 100-litre compressed-air receivers - and everything in between)  radiates heat into whatever area.

Temperatures seem to be in the range of 900-1000 degrees F at the top of the burner pot area and maybe 400-700 F at various parts of the big heat-radiating "stove" bit

There are as many design schools as there are builders, and different versions of secondary air feeds abound - but there's a lot of overlap

So over the recent couple of weeks while my perk-disliking boss has been "working from home" I have come into the shop at six every morning and gotten in 90 mins work building myself one of these before anyone else turns up

The Domestic Authority isn't keen to be tripping over big bits of pipe shit in the garage  (and who can blame her) so the bits are sitting on a pallet out in the paddock in the traditional "under the Macrocapa Trees" site

Because they're out in the weather I gave them a coat of zinc primer and a coat of black enamel (which will burn off and stink/smoke like buggery hen it's fired).  I wish I had photographed it before painting - but too late now.  The black makes it hard to see detail

Anyway - pics attached

Main features are:

Body ex 250mm NB pipe with 8mm wall and 12mm top plate and 6mm wall 125mm swept elbow bend to flue cos there was one in the workdhop.  Crude baffles in the body to hopefully extract some heat before it goes up the flue

At the junction of the top of the burner tube/bottom of the body, there's an up-angled 40mm air intake with a section of 40mm pipe and a brass gate valve (the 600mm of pipe is just to keep the gate valve away from the hot stuff) so I can have a tinker with a tertiary air intake if it's good or just plug it with a 40mm BSP bung if it ain't

There's a funny stub-and-flange sticking out the other side.  That's cos I need to mount it out in the paddock miles from anything flammable and I have a post with a suitable flange for that to mate to in a suitable location.  So it'll be kinda "free-standing" so as to be easy to muck about with

Hanging below the body is a section of 100mm SC40 steel pipe with a bunch of holes (secondary burn section).  I figure I may have to drill more holes but I figured drilling extra ones later was easier (out int he paddock) than welding up surplus ones later.  On the bottom of that there's a flange where the burn chamber/pot bolts to the underside of it - just 4 X M16 bolts atm cos I don't want to do one of the many quick-release designs in the development stages in case it self-releases and sprays burning shit everywhere

On the top of that flange there are welded 3 X 15mm sockets (temporarily blocked with 3 X 15mm steel bungs so I can have one, two or three primary air holes

There's a bunch of 15mm/20mm plumbing to facilitate dripping one or two sources of oil into the pot (I don't like the copper-pipe-flapping-around look) an I have valving and plumbing etc "ready to roll"

It's a prototype.  I guess it owes me 10/15 hours and zero $$

Hopefully I'll get to do some burns with it in the next few months - firstly to validate/disprove/fine-tune the design; secondly to have a play with the heavy oil of which I have a potentially almost limitless supply

We'll see what happens.  As always, there is much to learn

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