Ok, I got the leakdown gauges. I have one question, how critical is it to have the piston at TDC? I removed the push rods so all valves are closed but the pistons are at different locations. When I set the left gauge (98pis) so the right gauge is at zero See photo #1. Then hook it up to the cylinder the left gauge goes down to 88psi and the right gauge goes to all most to 20% see photo #2. Then if I increase the left gauge to get it back to 98-100 the right gauge goes into the yellow range, photo #3. Is the piston location critical or is it more important to have constant pressure going into the cylinder? It appears to me very little leakage. Any thoughts?
