Yes. Doesn’t like the wind. Seems to not make any smoke at all on a still day when the oil/air is consistent. Check out pic/vid of flue against the gum trees & the sky on a calm day

Perhaps SOM bits in a new box?

I'd appreciate any thoughts

Cheers

INJECTORS

Because some of the older big machines such as Blackstone/Miirlees have fallen under the “Lister” label in recent decades – I might just put these in “Lister” and in “Other”

I wonder if someone has a use for them?

I have four large Bryce/Lucas-Bryce NTDOB injectors – complete and still sealed in plastic-wrap and original boxes from what looks like a factory overhaul.  They were part of a larger auction and I would say they have originally been “spares” inventory somewhere like a municipality or a hospital where a large Polar engine or something like that has been working

I would guess the pictures tell the story, really?

Perhaps these would be useful to someone restoring or working an older large machine – I think this NTDOB (and possibly related/possible overlap NTCLB and NTDLB) series of injectors are from large individual-cylinder two-stroke diesels – but I stand to be corrected

It also seemed to me that injectors such as these in good condition might represent an opportunity for someone to machine an adaptor-sleeve to use them in a non-original application?

Stamped into the injector is the Bryce code:
“BRYCE WZ NTDOB175HO464

The boxes say “99-5367-7241” and that’s a coding number for parts that have had a military application in some way – perhaps a marine engine or a large generator/power plant?

99-5367-7241 is an American NSN (National Stock Number) in Federal Supply Group (FSG) 28, and Federal Supply Class (FSC) 2815 & FSC 2910

NSN listing part number 99-357 also references a listing #U1614

99-5367-7241 is also on the NATO Parts list in categories DRN2910 & DRN4780 as: part #2815-99-536-7241 “Injector assy F” also mentioning parts numbers OD28674 and K8098

In Britain they’re referenced with part # “8715” which is a Defence and Aerospace listing under the UK NIIN (National Item Identification Number) 995367241
UK NIN also references part numbers OD28674, 2815995367241 and 995362741

Bryce says applications include Miirlees Blackstone and Lister Blackstone engine-type ERS MGR two-stroke diesels and Wichmann AX engine-type diesels

I’d be relaxed about mailing these anywhere they may be needed.  I guess each box might weigh two or three KGs?

I guess anyone interested could message me?  Cheers

Okey-dokey

I realise this isn't a subject in which there's a lot of interest - so my apologies to anyone who feels his time is wasted by it.  But it's only really my time wasted

There are lots of simple draft-type burners around and they're capable of immense heat, limited only by one's personal courage, as far as I can see

I must have watched 50 or 100 YouTube vids of burners ranging from awful to unbelievably efficient-but-complex.  So a while back I posted some pics and a short video or two of my iteration of an "Ozzirt" type drip-feed burner - it was just proof-of-concept, really, but I was encouraged by the fact it would respond to "tuning" the air intake at bottom, midpoint and top (primary, secondary & tertiary burns - if you like) and the fact that was repeatable.  Plus it was easy to have it burn "clean" - at least in terms of exhaust output

So I'm 2/3 of the way of building Mk11 as mentioned a couple of weeks ago.  See pics attached?

It's still rough, still proof-of-concept.  I wanted to see if the Ozzirt drip-feed design would burn through a big chamber and around a baffle - to capture and dissipate a chunk of the heat - and also if it would do that with a "cook-top" top section which, in an ideal world, would incorporate sections that were "hot", "bloody hot" and "simmer"

So here's some ugly cut-and-shut construction.  It's a hunk of 300mm (12-inch nominal bore) pipe with a 12mm (1/2 inch) wall - should accumulate a bit of heat with a bit of luck) and the top is made out of some scraps of 12mm flat too

There's a base (not shown cos I forgot) which incorporates a stand etc . . ,

The intake/burner bowl/burner tube is a re-use of the one in the previous post - but I welded a section of 100mm BSPT male thread onto it and welded a 100mm BSP socket onto the bottom of the intake part of the big "stove" chamber - so the burner tube and air intakes assembly hangs off the elbow shown and is removable to play with as long as the thread lasts (not long I suspect)

At the exhaust end of the stove chamber thingie there's a 125mm flange welded in place two-hole-square, so I can attach whatever I like to it, flue-wise, simply by building it on the end of a suitable flange with two-holes-square orientation

Like any piece of amateur cut-and-shut, it's ugly - although it'll clean up with some weld-grinding.  Basically I tacked stuff together, heated it with the gas to bash into shape in the join areas and filled the gaps with weld,  It'll work well-enough to prove/disprove the concept

My aim is to have a "stove-type" burner which is safe-enough to put in my shed and which will radiate a chunk of heat and which has a "cook top" function.  So this is a first step towards that.  I wouldn't anticipate building anything that one would leave burning unattended

The base (not shown cos I forgot to photograph) incorporates a steel "tank" for want of a better word, made from 8mm plate, and with 40mm BSP sockets at each side - because I'd like to see if there's a safe way to "pre-heat" the heavy oil of which i have several tonnes available

So there we are.  Excuse long-windedness

Am I right in thinking I have seen 40/50mm plumbing non-return-valve units used on crankcase covers?  The brass-body type with the spring-&-seat arrangement?

What is the thinking?  The valve opens to allow crankcase pressure to escape as the piston descends?  Or do I have that ass-about-face?

Cheers

Veggie - I should have said, too:  the reason the whole thing is built as it is - is that it's all stuff lying around the workshop.  Total cost to me was $0.00.  It was just a proof-of-concept

Mk11 will have design requirements I guess.  But I'll try to keep costs low lol

That's a thing of beauty