Air compressor question

[Colt]

 

 

My E-7 460 leaking oil from where the compressor mounts to the engine .  It’s “bubbling” from the top side  .  Is this most likely a gasket failed ?  I read oil is supplied by the accessory drive  .  Is there enough pressure there to make oil push or “bubble” out of the top?  I figured if it leaked it’d leak out the bottom side .  My mind was just thinking could it be a bad compressor pressurizing the crankcase .  Hate to change the gasket and blow again.  Here’s a pic .  Any help appreciated, I claim to be no mechanic just a hobbyist/truck driver  .  Video attached 

[Geoff Weeks]

If you are pressurizing the crankcase, it will pressurize the WHOLE crankcase, not just the acc drive. Change the gasket unless you have massive blowby out of the crankcase breather.

[Joey Mack]

When you remove the compressor, there is a metal tube in the center of the aux drive hub. It is not secured.. make sure you see it, and put it back in the hole in the aux drive shaft.  It is the oil transfer tube. 1/2" X 1 1/2" long

[mechohaulic]

did you remove oil fill cap with engine running to check blow by pressure. easier then crawling under sometimes. don't understand oil bubbling from compressor top unless compressor is loose.as joey said feed tube is in center of drive and return is flow back gravity bottom of compressor internals . THIS IS OF COURSE OLD SCHOOL DAYS, 

[fjh]

10 minutes ago, mechohaulic said:

did you remove oil fill cap with engine running to check blow by pressure. easier then crawling under sometimes. don't understand oil bubbling from compressor top unless compressor is loose.as joey said feed tube is in center of drive and return is flow back gravity bottom of compressor internals . THIS IS OF COURSE OLD SCHOOL DAYS, 

check the bolt for tightness! 

[Lmackattack]

first check if one of the 3 bolts is loose. there is a gasket and or sealent used to seal it to the Engine.  Dont forget to make sure the metal tube that directs oil to the compressor is there. 

But the bigger question is why is the crank case under that much pressure? check your breather tube to make sure its venting.

[terry]

9 hours ago, Lmackattack said:

first check if one of the 3 bolts is loose. there is a gasket and or sealent used to seal it to the Engine.  Dont forget to make sure the metal tube that directs oil to the compressor is there. 

But the bigger question is why is the crank case under that much pressure? check your breather tube to make sure its venting.

I once had a vent pipe that had a short rubber piece between valve cover and vent pipe, the rubber collapsed inside and the engine was pushing oil out all over. Terry