[Kris86]

Originally Posted by COO86L

Have a look here >>>>> http://www.gregsengine.com/using-a-vacuum-gauge.html

Convert .48 to .52 BAR to inches of mercury. You're currently around 14 to 15 HG which is below what you want. Could indicate vacuum leak or ring issues.

I've done a smoke pressurize leak down test and cannot find any

We changed the rings and regapped them thinking it could be that also, nothing changed