Rb26 Compression Test

[r334me]

I done a compression test on my motor today and the results are confussing..

Cyl 1 = 150psi

Cyl 2 = 75psi

Cyl 3 = 155psi

Cyl 4 = 80psi

Cyl 5 = 82psi

Cyl 6 = 150psi

Can anyone help me understand what the readings are telling me as i am looking for a noise in the motor and trying to figure out if its top end or bottom end..

Thank you

[RB30-POWER]

either you didn't test 2, 4 &5 properly, or they are farked...

if you tested properly, you now need to do a leak down test to determine if its headgasket, rings, valves etc