Is there acceptable blowby on Devilbiss pump abp-459?
Devilbiss ABP 459 compressor pump
I have a used Devilbiss abp459 pump on a porter cable unit.
I need to take it apart to seal the bottom crankcase gasket. I am trying to determine if it needs rings while I am at it.
When running, there is blow by escaping the breather vent dipstick that can be felt about 6-8 inches away. I haven't exactly timed the fill but its is approx 5 mins from empty to 165 on 80 gal tank.
I am pretty new to compressors, how do I determine if the blowby is within an acceptable amount? It doesn't use any oil, just visually leaks. I tried to tighten up crankcase bolts, made it go from wet weeping to worse visual leak.