Thank you guys for all the reply and sorry for my poor english and for my late reply.
We can still find victa powertorque (mastercut 460 series) in our shops in New Caledonia. You are right, this mower is quite expensive, mainly in New Caledonia. The last one, I bought, 2 weeks ago cost me about 650AUD$. But I really like that mower because of the simplicity of the engine and because of the Cast Alloy of the chassis (no rust issue). I've got today 2 victa at home, one completly new and the other is about 6 years old. I'm trying to make a new life to the old girl that's the reason why I m' looking for good information on this very interesting forum.
Nobody reply to me about the material like a metal sponge I 've found in the old muffler ? Is it normal not to find this material in the new one ?
Maybe I will show you this week end a picture of my two mowers.
Regards,