Pin hole in Hallman Boost Cont

[awdtalon4451]

Not sure if this is the correct forum but I recently bought a Hallman pro and it has a 1/16 pin hole drilled in the side of the fastener. When I did my boost leak test it steadily pissed out out air. I read something about its to keep it from airlocking but it constantly leaks and my boost is all over the place. I currently have it plugged but is this normal for a HBC?

 

[awdtalon4451]

The reason I ask is because I have poor boost recovery and I'm wondering if this is contributing to it.

 

[mschlanglv]

You are correct about it's purpose. Unfortunately I doubt itis part of your problem. Have you checked your bov or preturbo exhaust leaks?

 

[RamenPride]

It's a supposed to be there. The MBC is a one way valve, the pressure in the line to the wastegate (actuator) has to have somewhere to go when it closes.

 

[awdtalon4451]

Yes I have done a boost leak test and it was the last leak I had. I put a dab of rtv to plug, which I'm guessing I shouldn't have . Maybe its my cause then.

 

[bryanwheat]

Remove the rtv, With that hole plugged the wastegate will be held open.