Leakdown Testing

[69Cobra]

Originally Posted by junior barns

Back off all rockers and do one at a time. Little time comsuming but at least you will know the valves are closed

X2 We always back the rockers off as well. Also you set the incoming pressure to 100 and then what the cylinder is holding out of 100 is the percentage. For example if you have 100psi coming into your gauge but the cylinder side is only showing 92psi. Then you have 8% leakage on that cylinder. At least thats how we've done it.