Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel

Log In

A valid email is required.
Password is required.
Site Notices
Basic
  • Joined Mar 2010
  • Posts 38
  • Location USA FL, USA
Offline
Basic
  • Joined Mar 2010
  • Posts 38
  • Location USA FL, USA
Offline
Posted: 12/28/2011 1:31:06 PM EST
so i received my new Ranier arms barrel in today and i have a YHM low profile gas block sitting here. the barrel is exactly .750 but the gas block is .747 now my question is what should i do to get it on? do i sand down the barrel or should i sand the inside of the gas block. thank you.
Some days its just easier to be an asshole.
Avatar
Gold
  • Joined Jan 2009
  • Posts 4241
  • Location USA PA, USA
Offline
Gold
  • Joined Jan 2009
  • Posts 4241
  • Location USA PA, USA
Offline
Link Posted: 12/28/2011 1:35:56 PM EST
I had the same barrel and block as you have. I first tried to sand the block but it was still too tight so I ordered a block that was slotted.
Proud Member of Team Ranstad .... The Fantastic Bastards
You have enemies? Good.That means you've stood up for something, sometime in your life.-W. Churchill
Triple Threat
Avatar
Bronze
  • Joined Apr 2007
  • Posts 11818
  • Location USA USA
Offline
Bronze
  • Joined Apr 2007
  • Posts 11818
  • Location USA USA
Offline
Military
Link Posted: 12/28/2011 1:36:44 PM EST
Return to YHM & have them send you the proper size gas block. I take it the .747 is your measurement? You could try sanding but make sure it doesn't fit first.
I think it takes a particular coward to criticize procedures that you don't understand; particularly when they apply to places that you don't have the bravery to go.



Basic
  • Joined Mar 2010
  • Posts 39
  • Location USA FL, USA
Offline
Basic
  • Joined Mar 2010
  • Posts 39
  • Location USA FL, USA
Offline
Link Posted: 12/28/2011 2:11:41 PM EST
i tried to get it to fit and there's no way its going to slide on i put oil on both but didn't budge.
Basic
  • Joined Mar 2010
  • Posts 40
  • Location USA FL, USA
Offline
Basic
  • Joined Mar 2010
  • Posts 40
  • Location USA FL, USA
Offline
Link Posted: 12/28/2011 2:12:15 PM EST
and yes .747 is what my digital micrometer says.
Basic
  • Joined Dec 2008
  • Posts 634
  • Location USA USA
Offline
Basic
  • Joined Dec 2008
  • Posts 634
  • Location USA USA
Offline
Link Posted: 12/28/2011 2:27:32 PM EST
send it back to yhm. If they can't get you one that wil fit try a Vltor... have used 3 or 4 of those and they always fit at least mine have.
Member
Avatar
Bronze
  • Joined Mar 2001
  • Posts 420
  • Location USA NY, USA
Offline
Bronze
  • Joined Mar 2001
  • Posts 420
  • Location USA NY, USA
Offline
Link Posted: 12/28/2011 10:04:54 PM EST
You could send it back or heat the sucker up, you might be able to get the 3 thousands out of it. I have a straight reamer in my toolbox at work but that isn't doing you any good, lol.
Never pet a burning dog!
Basic
  • Joined Feb 2011
  • Posts 465
  • Location USA FL, USA
Offline
Basic
  • Joined Feb 2011
  • Posts 465
  • Location USA FL, USA
Offline
Link Posted: 12/29/2011 4:17:56 AM EST
Whatever you do with sanding, please sand the cheaper of the two items. You could take it to a local machine shop, and they can mill it.

Best bet. Send it back and get a new one.
PFC
Basic
  • Joined Nov 2002
  • Posts 878
  • Location USA TX, USA
Offline
Basic
  • Joined Nov 2002
  • Posts 878
  • Location USA TX, USA
Offline
Link Posted: 12/29/2011 10:30:06 AM EST
I would think YHM will make it right.
If you are in a hurry you could try a wheel cylinder hone.
Member
Avatar
Bronze
  • Joined Mar 2001
  • Posts 421
  • Location USA NY, USA
Offline
Bronze
  • Joined Mar 2001
  • Posts 421
  • Location USA NY, USA
Offline
Link Posted: 12/29/2011 11:04:35 AM EST
You just don't want to sand the barrel because then replacement blocks will always be loose.
Never pet a burning dog!
BRD Engineering
Avatar
Bronze
  • Joined Aug 2001
  • Posts 4334
  • Location USA MN, USA
Offline
Bronze
  • Joined Aug 2001
  • Posts 4334
  • Location USA MN, USA
Offline
Link Posted: 12/29/2011 11:39:10 AM EST
[Last Edit: 12/29/2011 11:45:32 AM EST by comp1911]
Brake cylinder hone

http://www.mcmaster.com/#cylinder-hones/=fkt9gt

Don't touch the barrel.

Rainier also makes a gas block that is specically designed for thier barrels.
Builder of fine parts guns since 1997.

The man behind brdengineering.com

Basic
  • Joined Dec 2004
  • Posts 2905
  • Location USA NJ, USA
Offline
Basic
  • Joined Dec 2004
  • Posts 2905
  • Location USA NJ, USA
Offline
Link Posted: 12/30/2011 5:38:39 AM EST
.003" isn't much. Can you try freezing the barrel and heating the gas block? It might be worth a shot before sanding, grinding or returning things. What does YHM say? They may have encountered this before and have an easy fix.
Basic
  • Joined Aug 2010
  • Posts 321
  • Location USA CO, USA
Offline
Basic
  • Joined Aug 2010
  • Posts 321
  • Location USA CO, USA
Offline
Link Posted: 12/30/2011 6:22:18 AM EST
Originally Posted By NickySantoro:
.003" isn't much. Can you try freezing the barrel and heating the gas block? It might be worth a shot before sanding, grinding or returning things. What does YHM say? They may have encountered this before and have an easy fix.


+1 Freeze barrel over night. I would put it in a ziploc bag to prevent moisture. Or heat the gasblock in the oven for a bit. You shouldn't have to do both. Work fast and make sure it is lined up correctly the first time
Member
Avatar
Bronze
  • Joined Mar 2001
  • Posts 422
  • Location USA NY, USA
Offline
Bronze
  • Joined Mar 2001
  • Posts 422
  • Location USA NY, USA
Offline
Link Posted: 12/30/2011 7:25:16 AM EST
Originally Posted By Espos1111:
Originally Posted By NickySantoro:
.003" isn't much. Can you try freezing the barrel and heating the gas block? It might be worth a shot before sanding, grinding or returning things. What does YHM say? They may have encountered this before and have an easy fix.


+1 Freeze barrel over night. I would put it in a ziploc bag to prevent moisture. Or heat the gasblock in the oven for a bit. You shouldn't have to do both. Work fast and make sure it is lined up correctly the first time


No reason why this wouldn't work.
Never pet a burning dog!
Basic
  • Joined Dec 2011
  • Posts 21
  • Location USA SC, USA
Offline
Basic
  • Joined Dec 2011
  • Posts 21
  • Location USA SC, USA
Offline
Link Posted: 12/30/2011 8:32:27 AM EST
I couldn't get my Troy gas block to fit so I used a medium butane torch and it went on with some force. Now it will come on and off easily when i loosen the set screws... Not sure what has changed haha...

Don't forget to put a light coat of oil on the barrel so you don't scratch it. It also helps to slide it on the seat.
Just a Big Hairy American Winning Machine
Avatar
Gold
  • Joined Jan 2006
  • Posts 3469
  • Location USA VA, USA
Online
Gold
  • Joined Jan 2006
  • Posts 3469
  • Location USA VA, USA
Online
Military
Link Posted: 12/30/2011 8:47:53 AM EST
Heat it up. Had similar issue with a Larue lopro gas block on my GTS 6.8 barrel. heated it up with a torch while holding it with channel locks. Once good and heated, it slid right on and locked up tight.

Make sure it's aligned correctly when you put it on because it will cool and clamp on quickly
"The Angel of Death has been abroad throughout the land; you may almost hear the beating of his wings"
"Flying a plane is no different than riding a bicycle, just a lot harder to put baseball cards in the spokes" -Rex Kramer
Basic
  • Joined Sep 2011
  • Posts 44
  • Location USA CO, USA
Offline
Basic
  • Joined Sep 2011
  • Posts 44
  • Location USA CO, USA
Offline
Link Posted: 12/30/2011 8:51:54 AM EST
seems like a bad idea to force the two together with heat/cold whatever. If you ever want to remove the GB you are hosed. I would get a good fitting GB and be done with it, knowing I can remove anytime I wanted.
BRD Engineering
Avatar
Bronze
  • Joined Aug 2001
  • Posts 4343
  • Location USA MN, USA
Offline
Bronze
  • Joined Aug 2001
  • Posts 4343
  • Location USA MN, USA
Offline
Link Posted: 12/30/2011 9:11:52 AM EST
3 thou is a lot at only 3/4"
Builder of fine parts guns since 1997.

The man behind brdengineering.com

Basic
  • Joined Mar 2010
  • Posts 41
  • Location USA FL, USA
Offline
Basic
  • Joined Mar 2010
  • Posts 41
  • Location USA FL, USA
Offline
Link Posted: 12/30/2011 11:59:49 AM EST
thanks guys for the fast responses and great ideas. i went ahead and ordered the gas block from raniers. and im going to go ahead and use the YHM gas block on a government profile barrel that it just slides right on to.
San Jose, CA
Avatar
Bronze
  • Joined Nov 2000
  • Posts 3658
  • Location USA CA, USA
Offline
Bronze
  • Joined Nov 2000
  • Posts 3658
  • Location USA CA, USA
Offline
Link Posted: 12/30/2011 2:01:58 PM EST
Originally Posted By comp1911:
Brake cylinder hone

http://www.mcmaster.com/#cylinder-hones/=fkt9gt

Don't touch the barrel.

Rainier also makes a gas block that is specically designed for thier barrels.


+1. A 3-stone brake cylinder hone will work just fine.
1st Cav Div, B 5/7
Vietnam/Cambodia
1970
Top