Bored my Merc triple block .040 over and installed all new Wiseco pistons and rings. Since it was a "bit expensive", I looked up Wiseco's break in procedure and intended to follow it to the letter.

However...They recommend 5 HOURS of idle time, followed by a few hours of below 1,500 rpm in gear, followed by an hour or so of 2,500 rpm in gear.

Are they serious?

The 5 idle hours I can do easily--just let the fool thing idle away--but the rest of their procedure will be hard to do--especially the in gear 2,500 rpms deal: that's hanging on plane throttle settings.

So...what do you guys recommend? Naturally, I'll run 20:1 oil and keep an eye on temps.

Thanks,

Jeff