Poorly Touring Turm burner base

Hi everyone.
What looked like a decent project may turn out to be a decoration!!
Wanted a Touring Turm to go with the MZ Ts125 I have and scored one on the usual site.
It arrived yesterday and I stripped down today.
Most of it looks good apart from the base of the burner.
Th top appears to be brass? With a mild steel concave base.
The steel is pretty well corroded with pin holes.
Has anyone done a replacement with appropriate biscuit tin steel?
If so, any idea's how the steel to brass bond is made?
I really would like to see it working!!
Hopefully a picture is attached.

 

I’d not bother repairing that. It sits on the bottom (priming) tray and the pin-holes shouldn’t affect combustion. Burner top is indeed brass.

My fettle of a Touring Turm HERE might be helpful.

Photo sequence to illustrate the burner components.













John

 

Thanks John. Had a look at your refurb post a few times while waiting for stove to arrive.
Very informative and a good fettle. Love it.

 

Had a busy week experimenting with trying to press a new base from various items!
Cut up a coffee tin, it all creased.
Had a few goes with bottom of aerosol cans, not deep enough.
Finally - some plate steel cut from an old washing machine.
A large socket and a 17mm socket plus the use of a bearing press with a bit of panel beating afterwards!!
Waiting for fibreglass to make a wick as per John's. Then it's time for a burn test!!

 

Very nice !!

 

I used a string from an all cotton floor mop for the generator. Works for me on my Turm Sport.

 

Mendologist, It's cleaned up nicely . Good work

 

Thank you very much.
Just received a sample of a soldering mat. 5cm square, from Ebay, 99p delivered. Made into a wick like presscall/John shows.
Tried it tonight, just a little bit of vapour igniting at base of burner, causing slightly yellow flame. Will reassemble with a smear of exhaust assembly paste tomorrow.
Can‘t wait for a nice clean blue flame hopefully!!

 

Aaargh! Sealed up the base but still got a yellow tipped flame. Also got flame at the end of the fuel valve threads! Shame there is no gland to tighten.

 

I recommend smearing the threads with graphite grease. Copaslip works too.

Flame looks good in your video clip.

 

It might be that the vaporizer isn’t packed enough. That would possibly cause a rich mix of vapor and liquid to be burned.

 

Hi John. Will try that, I have some decent copper grease. Might go belt and braces and shave some carpenters pencil graphite into it!!

 

Hi goldwinger11, I made a wick as per presscalls post, wrapped some fibreglass strands around coiled wire, it only just went in. May have to pull it out and try wrapping it tighter with more strands.
The fuel/Meths is new and looks good, but who knows if it is being messed about with as per unleaded fuel in the U.K.!!

 

@Mendologist
Not disputing goldwinger11, but even when I’ve had original wicks in alcohol stoves like the Turm, they’ve never been packed very tight in the vaporiser. Wick’s a misnomer really, because the fuel’s gravity fed and not ‘wicked’ to the burner. The fuel’s meant to reach the burner easily and the wick’s there, as far as I can make out, to physically occupy space in the vapourising tube, leaving less of a ‘head’ of fuel to have to vapourise. It also hinders fuel vapour bubbles getting back ‘upstream’ to the fuel tank and heating up the fuel in the tank, causing surging.

I’ve noticed with Turms and equivalent alcohol stoves that when the vapour leakage and air ingress past the control spindle threads has been prevented (the grease) the flame gets blue-er.

John

 

Here is the turm with a better burn colour.
I put copper grease on the threads.
Had two further attempts at repacking the wick.
1st attempt too many strands, not enough fuel coming out to sustain a burn.
2nd attempt with less strands much better.
Thank you very much for the information given from your own experiences guys.
Much happier with the stove now.

 

@Mendologist
That’s a good flame. It’ll probably blue up some more after a few firings as the new wick gets used to its new environment, as it were.

John

 

Good Better Best,
Never Let It Rest,
Until Your Good Is Better And Your Better Is BEST!!!
(from my long passed Grandad).

 

Looking really good now. @presscall explained it best. Let it work a little and the flame should blue up. The replacement metal on the burner could also cause a discolouration of the flame.

 

Fired it up tonight again. Lovely flame and volume of heat. Still getting a little bit of vapour leakage somewhere, but definitely not an ornament!
Thanks again for all your inputs and advice.

 

Ha ha, Good better best, never let it rest until your good is best and your better best. This is written on the Furphy Water tank cast iron ends, also written in old shorthand which is mistaken for Arabic, “ Whisky and beer are concoctions of the devel, come and have a drink of water” A bit off topic but a bit of trivier since it was mentioned.
Cheers
Rob