Hi Again:

Is there a good method to use when breaking in a chromed engine?

Today, I got out my old ST G20/15D that has had the bore and the crank pin chromed. I ran it on a large 10x6 prop to get at a very undercompressed condition and as rich as it would go and still continue to run. I did this for about 4 minutes and then switched to an old Cox 8x4 gray prop. I ran this for about another 5 minutes to start the break in process a and to find starting settings for running. I ran this prop at an undercompressed and rich condition that was recorded to be 14,000 plus rpms.

What should I do next? What I want is a sport engine that is very easy to start after I break it in. How much more bench time do I need on this engine?

Any suggestions?

Tia,

Franchi