So what do you guys think about this leakdown tester?
Most of the ones I see have two gauges and some sort of orifice between them.
This one only has one gauge on a regulator.
-Set the pressure @ 50 psi
-Screw rubber hose into spark plug lead on cylinder at TDC
-Connect rubber hose to regulator which was set @ 50 psi
-Read new psi
Difference x2 is leakdown percentage
So for example, checking the SC over the weekend and got pretty consistent 48psi after connecting hose to regulator. Is that a 4%?
Or is the tester / procedure flawed?
