Hi John

For further information on this engine, please conduct a search of this forum for information on "Aurora". There have been a few threads over the years. I started a thread based on my experience of dissassembly of a NIB Aurora K-600 I acquired from Mr Carlson.

I did not finish re-building the engine, as life events overtook me, and I ultimately lost many of parts for it which in my absence I left soaking in a petrol ( for US - gasoline) bath. I retrieved only a few parts.

I have since acquired another example, as I believe that despite some very rough internal finishing, they could be (with a little fettling) a fine running engine.

I have agreed to send it to Gregory Kamysz (apologies to you Greg if I have mis-spelt your surname) for his opinion and any remedial work that may be required.

My recollection - appalling domestic made open ball races, the roughest con rod I have ever seen (coarse filed) that had far too much clearance on the little end. There was also a problem with the split collet prop driver.

Other than that, it seemed a well designed unit, with a nice smooth twin needle carb (unlike the crude PAW efforts). However, it is not a buy-and-fly proposition. Read my work notes on it, I was rather loquacious!

The new example sits neglected in a drawer at my work office. I must overcome my slothfulness and get about sending it to Greg.

The engines referred to in an earlier post are Sharma's, which are copies of PAW's. The K-600 is an original (and to my mind rather nice, if traditional peripheral ported) design.

Cheers