Leaks from gasket

Helpful hints on how to build 'em, and where to get the stuff you need.
Post Reply
Message
Author
laits
Posts: 136
Joined: Mon Mar 22, 2010 6:01 pm

Leaks from gasket

#1 Post by laits »

How common is it to have a leak at the gasket? I have been testing my jacks and they dont appear to have leaks, but I am not sure I know what to listen for. Is there another way to describe the "chuffing" noise so that I know what how to identify it?
Built 2-OT12 (3012HO); 2-T39 22" (3012LF); 2-T39 16" (3012LF);
2-J12 (DL2512); 2-W8 (Beta 8A)

User avatar
doncolga
Posts: 1967
Joined: Thu Jul 01, 2010 3:01 pm
Location: Statesboro, GA
Contact:

Re: Leaks from gasket

#2 Post by doncolga »

It's something you just immediately know when you hear it, and it is tricky to describe. I had repaired some vibrating braces on a T30 and there were some very small holes in the top where I was drilling for the panel. The bass was there but less powerful and you could really hear the "chuff"...just air blowing through a little hole...that's what it sounds like.
Donny Collins
Built:
Two 18" Tuba 30's 3012 LF
Two 26" Tuba 30's Lab 12
Two OmniTop 12's DL 2512 (Melded Array)
Presonus Studio One DAW
Harrison Consoles MixBus 32C DAW

bassmonster
Posts: 1384
Joined: Wed Jul 13, 2011 9:23 am

Re: Leaks from gasket

#3 Post by bassmonster »

Yup, the "pfff pfff" sound is pretty apparent when the leak is on the outside, and it's most apparent at very low frequencies- something just sounds wrong and you know it's not a normal sound. I had the same air leak problem with pilot holes I had drilled and didn't use. Filled with PL, problem solved. Driver gasket leaks are pretty common too- a bead of latex caulk around the gasket as you attach it and helps prevent leaks.

laits
Posts: 136
Joined: Mon Mar 22, 2010 6:01 pm

Re: Leaks from gasket

#4 Post by laits »

I put the back on and pulled a screw from the jack plate. Now I understand what to listen for. Thanks.
Built 2-OT12 (3012HO); 2-T39 22" (3012LF); 2-T39 16" (3012LF);
2-J12 (DL2512); 2-W8 (Beta 8A)

Post Reply