Hello to all (grumpy and Rodeobob in particular),
Just to keep you all up to date. After some delay, B&S USA eventually provided a complete new 26 HP vee twin engine of the ELS type as a replacement under warranty. So, I now have another engine with a 2 year warranty. Apparently, the ELS is a development of the basic Intek type, with chrome plated exhaust valve stems, larger cooling fan, a halfway decent air filter system and improved oil pump output among other things.
We shall see how we go.

Regards to all,
mustang