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[MartyH]

Hi,
I have just acquired a MHB Topaz with and Anton Sapphire oscillator, in which the cylinders are held to the frame by O-rings. Anybody able to tell me the O-ring size and/or where to get them?

[derekwarner]

Welcome Marty.......the MHB Topaz with and Anton Sapphire oscillator, is a great vessel & steam plant.....you will be happy with your purchase

I purchased an Anton gas regulator many years ago from Anton, not sure if he [Fabtrice] is still in production, but he sponsors the Anton annual French model steam boat race

We have a few Members from France who hopefully will chime in & assist


https://www.bing.com/ck/a?!&&p=e05ccd4ea0af3080JmltdHM9MTY2MTczMzcxNCZpZ3VpZD05Nzg3ODJhMi02YzgxLTRiOGEtOTU4OS1mYzgzYjY2NmE3ZmYmaW5zaWQ9NTE2NQ&ptn=3&hsh=3&fclid=60e92f12-2733-11ed-8a79-eadf77837a92&u=a1aHR0cHM6Ly93d3cub2ZmaWNlb2ZzdGVhbWZvcnVtLmNvbS9nZW5lcmFsLWRpc2N1c3Npb24vYW50b24tb3JpZ2luYWwtc3RlYW0tbWFjaGluZXMv&ntb=1


https://www.modelboatmayhem.co.uk/forum/index.php?topic=21720.0


O-rings can be measured with a vernier caliper, however the o-rings from your engine will be stretched and set as oval shaped due to the years of tension. If you know of any hydraulic components service centre, they could take a sample, place it on a tapered o-ring 'yellow Parker witches hat' gauge & determine what size it would have been


https://www.bing.com/ck/a?!&&p=5596162715037389JmltdHM9MTY2MTczNDUzNSZpZ3VpZD0yMjEwNTNmMS1kMTA3LTQ2OTItYmY5ZS1mZTk5MGYyMWViNDUmaW5zaWQ9NTEyNg&ptn=3&hsh=3&fclid=4a3e7f4e-2735-11ed-9fcc-822365d603a1&u=a1L2ltYWdlcy9zZWFyY2g_cT1wYXJrZXIrdGFwZXJlZCtvLXJpbmcrY29uZStnYXVnZSZxcHZ0PXBhcmtlcit0YXBlcmVkK28tcmluZytjb25lK2dhdWdlJkZPUk09SUdSRQ&ntb=1


Nitrile o-rings are ok to 95 degrees C, and compatible with steam and steam oil, Viton elastomer is ok to 180 degrees C and also ok with steam and steam oil........I am guessing, the original o-rings would have been Nitrile & preferably, 90 Duro [durometer hardness]...either way, both are cheap as chips

Derek

[MartyH]

Thanks Derek,


I am in Camp Hill, Brisbane! I have a few projects on the go using Miniature Steam Avon units mainly - Vic Smeed River Queen and a twin setup in a Saito Neptune. Had my doubts regarding the Sapphire in the Topaz and am considering a Miniature Steam Clyde unit in lieu. In my stash is the Topaz, a Caldercraft Talacre coaster and another freelance hull from a guy here in Brisbane that does the River Queen hull in fiberglass.


The Topaz was an unexpected buy - appeared on Facebook for $400 NIB with the power plant so couldn't resist. Given a new price in the region of 1200 - 1400 in 2006 money I think I did okay!


Marty

[rhavrane]

Bonjour,

Marty, Fabrice ANTON Bretagne is a friend and I ask him your question as I have not this machine in my collection.

400 is nothing, I paid  more than 3 times this price for mine : https://youtu.be/q0d-8mhsnUY but equipped with an Anton T200 and I added accessories.

Very pleasant on the water : https://youtu.be/b-93Ju1vV6E

Unfortunately, Fabrice has retired last year and we have now in France only one pro manufacturer : https://www.jmc-vapeur.fr/

[MartyH]

Thanks Raphael,


I certainly would like you to get in touch with Fabrice and also ask are there any guides or manuals for the engine. I did manage to find a catalogue from 2007 but unfortunately it does not list the O-rings.


Marty

[rhavrane]

Bonjour Marty,

I have already sent a message to Fabrice, he is on holidays yet and will answer us as soon he come back home.

About guides or manuals, he has never published any document and I am sure you won't need one to repair your machine 

[rhavrane]

Bonjour Marty,

As promised, I have contacted Fabrice Anton Bretagne and he says :

 - For O'rings, you find them on his online shop : https://anton-vapeur.sumup.link

 - If you would prefer his later enhancement with springs, contact him : fabrice DOT bretagne AT nordnet DOT fr