Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
new amp stripped out ground screw
#401684 03/06/14 11:26 PM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
OP Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
Got a new replacement amp for my EP600, and once hooked up had same ground hum on the rest of the speakers. With my last amp I had to remove the ground screw (phillips) and the sound was dead quiet.

So it appears the new ground screw was somehow over tightened at the factory, because it is completely rounded out. I can't even tell what type of head is on it, but looking at a few of the other ones near, it is either hex or robertson now.

I've tried using various bits of larger size in hoping to grab onto something, no luck.

So my options are a cheater plug I guess, or get one of those reverse drill bits to try and grab onto it and get it out.

Thoughts?


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: new amp stripped out ground screw
SirQuack #401685 03/06/14 11:57 PM
Joined: Sep 2011
Posts: 1,767
E
connoisseur
Offline
connoisseur
E
Joined: Sep 2011
Posts: 1,767
What a PITA.

Can you get some small Vice Grips onto the head & at least loosen it? Sometimes it works...

TAM

Re: new amp stripped out ground screw
SirQuack #401686 03/07/14 12:19 AM
Joined: Feb 2004
Posts: 1,863
connoisseur
Offline
connoisseur
Joined: Feb 2004
Posts: 1,863
Originally Posted By: SirQuack
Got a new replacement amp for my EP600, and once hooked up had same ground hum on the rest of the speakers. With my last amp I had to remove the ground screw (phillips) and the sound was dead quiet.

So it appears the new ground screw was somehow over tightened at the factory, because it is completely rounded out. I can't even tell what type of head is on it, but looking at a few of the other ones near, it is either hex or robertson now.

I've tried using various bits of larger size in hoping to grab onto something, no luck.

So my options are a cheater plug I guess, or get one of those reverse drill bits to try and grab onto it and get it out.

Thoughts?



Id use a backout bit to pull it out. that's a small screw; so, it shouldn't be an issue.

Re: new amp stripped out ground screw
SirQuack #401690 03/07/14 03:23 AM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
OP Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
Hey Tam, tried that, the overall head is rounded so you can't grab onto it, I tried a few different tools I have. Dak, I will check out our local home improvement stores for a backout bit. I tried a number of various bits I have (square, torx, etc.) of larger sizes but just stripped it out even more, they must have used a torque wrench. I wonder if I soldered a small allen wrench to it and just turned it out.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: new amp stripped out ground screw
SirQuack #401691 03/07/14 03:53 AM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
OP Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
just saw a few videos where you basically jbweld an allen wrench into the stripped out hole and once cured just turn the screw right out, will see.


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: new amp stripped out ground screw
SirQuack #401693 03/07/14 05:06 AM
Joined: Dec 2008
Posts: 6,928
axiomite
Offline
axiomite
Joined: Dec 2008
Posts: 6,928
Try a sharp punch of some kind, Randy(or a larger nail). Place the point towards the edge of the screw and tap it counter-clockwise to start it moving. Once it gets going, it should back out.


Half of communication is listening. You can't listen with your mouth.
Re: new amp stripped out ground screw
SirQuack #401699 03/07/14 02:06 PM
Joined: Oct 2006
Posts: 6,955
axiomite
Offline
axiomite
Joined: Oct 2006
Posts: 6,955
The reverse-out bits work very well. the secret is that you do often need to punch out a place to jam them in better for them to work best. They need a hole to grab into.


With great power comes Awesome irresponsibility.
Re: new amp stripped out ground screw
Murph #401710 03/07/14 06:46 PM
Joined: Feb 2004
Posts: 1,863
connoisseur
Offline
connoisseur
Joined: Feb 2004
Posts: 1,863
Originally Posted By: Murph
The reverse-out bits work very well. the secret is that you do often need to punch out a place to jam them in better for them to work best. They need a hole to grab into.


Do NOT punch out on this screw, it is way too small and in an amp plate. if the reverse bit doesn't grab, get a drill bit and take a LITTLE bit of material out of the center, keep in mind the size of screw your dealing with.....

using a punch is find on larger materials. However, i never use that approach, i always drill a little bit for the back out bit to have something to bite on to. Sears should have backout bits.

Re: new amp stripped out ground screw
SirQuack #401716 03/07/14 11:00 PM
Joined: Jan 2004
Posts: 13,840
Likes: 13
shareholder in the making
OP Offline
shareholder in the making
Joined: Jan 2004
Posts: 13,840
Likes: 13
sounds good, thanks for the ideas, will try this weekend hopefully..


M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85


Re: new amp stripped out ground screw
SirQuack #401718 03/08/14 01:29 AM
Joined: Jul 2009
Posts: 2,281
connoisseur
Offline
connoisseur
Joined: Jul 2009
Posts: 2,281
I am not sure what you have for tools, but at work I get this quite often. I use a small cutting wheel on a dremel and make a slot in the head of the screw and use a flat screw driver. My last option is drilling off the head with a good drill bit but this can still make it difficult to grab the remaining portion of the screw but at this point it is typically loose in the threads.


DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry
Page 1 of 2 1 2

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,940
Posts442,457
Members15,616
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,441
SirQuack 13,840
CV 12,077
MarkSJohnson 11,458
Who's Online Now
0 members (), 585 guests, and 1 robot.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4