The Rohrbaugh Forum

Rohrbaugh Products and Accessories => Gunsmithing or Modifications for your Rohrbaugh => Topic started by: Dire_Straits on June 16, 2011, 09:42:15 AM

Title: Grip screws
Post by: Dire_Straits on June 16, 2011, 09:42:15 AM
Does anyone know the torque specs for the grip screws on an R9S?

I will email Rohrbaugh if nobody knows off the cuff.  ;)
Title: Re: Grip screws
Post by: yankee2500 on June 16, 2011, 11:32:55 AM
I don't believe there is an actual spec for it, never seen it mentioned on here or in the Owners manual.
  Few people would be in possession of an inch pound torque wrench.
Title: Re: Grip screws
Post by: kjtrains on June 16, 2011, 12:21:56 PM
Good point, John.  Thanks!    
Title: Re: Grip screws
Post by: Reinz on June 16, 2011, 09:27:44 PM
As a fastidious bunch that we all are about our Pups, if needed be, it would not be a problem buying a Wheeler torque wrench that is used for scope intallations.  They run about $50 at the big box stores.  :D
Title: Re: Grip screws
Post by: kjtrains on June 16, 2011, 09:32:42 PM
Reinz.  Do you really think a torque wrench is necessary for installing grips on the R9?  I'm just curious!    :)
Title: Re: Grip screws
Post by: Reinz on June 16, 2011, 09:34:27 PM
NO
Title: Re: Grip screws
Post by: Reinz on June 16, 2011, 09:35:39 PM
But if the factory said "25 ft/lbs", then we would all hop to it. ;D
Title: Re: Grip screws
Post by: kjtrains on June 16, 2011, 09:36:19 PM
Quote
NO

Thanks!    ;D
Title: Re: Grip screws
Post by: kjtrains on June 16, 2011, 09:37:22 PM
Quote
But if the factory said "25 ft/lbs", then we would all hop to it. ;D

I'm not so sure!    ;)
Title: Re: Grip screws
Post by: Richard S on June 16, 2011, 09:57:06 PM
Quote
Does anyone know the torque specs for the grip screws on an R9S?

I will email Rohrbaugh if nobody knows off the cuff.  ;)

My personal "torque spec" might be described as "screws snugged down finger tight against miniature rubber O-rings." The O-rings seem to work well for me in preventing grip screws from backing out of the frame during range sessions. Still and all, I keep a quality 1/16" hex driver readily at hand in my range bag.
Title: Re: Grip screws
Post by: Reinz on June 16, 2011, 10:22:55 PM
I like that use of the o-rings!

I have them on some of my 1911's,  why not the R9 ?
Title: Re: Grip screws
Post by: kjtrains on June 16, 2011, 10:26:44 PM
Since I don't change grips, I've not tried the "0" rings, but they're on my to do list should I decide.  Great idea!  And if the screws start getting loose.
Title: Re: Grip screws
Post by: Dire_Straits on June 17, 2011, 10:40:57 AM
Quote
I don't believe there is an actual spec for it, never seen it mentioned on here or in the Owners manual.
  Few people would be in possession of an inch pound torque wrench.

I possess two inch pound torque wrenches. IMHO, if you are serious about your rifles and accuracy then you own quality torque wrenches.  ;)
Title: Re: Grip screws
Post by: yankee2500 on June 17, 2011, 11:40:10 AM
I agree if your a serious rifle shooter, but not everyone is. Not every pistol owner has a rifle. I know people who only own a couple pistols they carry for SD.
  I have an inch pound torque wrench from my days working an assembly job in the Aerospace industry but don't use it on either of my two rifles, a Ruger 10-22 and an MSAR Bullup, and they do whatever I need.
Title: Re: Grip screws
Post by: Reinz on June 17, 2011, 09:30:27 PM
Quote

I possess two inch pound torque wrenches. IMHO, if you are serious about your rifles and accuracy then you own quality torque wrenches.  ;)

Wow, that is hardcore.  But not surprising.

While I do have more rifles than the average bear, I don't shoot them much because I don't have  a good place to shoot them for distance, thus I get bored easy at 1oo yds.

So I don't consider myself a rifle guy.
Title: Re: Grip screws
Post by: kjtrains on June 17, 2011, 11:22:19 PM
I do have several rifles, and somehow always wanted a .458.  Maybe sometime................. :)
Title: Re: Grip screws
Post by: Reinz on June 20, 2011, 06:47:26 PM
Well that will take down whatever you want - and  then some. ;D
Title: Re: Grip screws
Post by: kjtrains on June 20, 2011, 07:04:38 PM
Probably all I would take down would be a few targets at the range or destroy some wood in the woodpile!    ;D
Title: Re: Grip screws
Post by: Reinz on June 20, 2011, 08:09:47 PM
That would make A LOT of wood chips!  ;D
Title: Re: Grip screws
Post by: kjtrains on June 20, 2011, 10:23:19 PM
Maybe not.  Probably go right through!    ;D
Title: Re: Grip screws
Post by: Reinz on June 20, 2011, 11:22:32 PM
I believe you are right, or as Clint Eastwood would say -

"it will REMOVE the fingerprints"  ;D
Title: Re: Grip screws
Post by: birdman on June 30, 2011, 09:01:33 PM
    Richard, where would I buy these o-rings and what size would I ask for? All information appreciated, thanks.    Gene
Title: Re: Grip screws
Post by: Richard S on July 01, 2011, 08:27:50 AM
Quote
   Richard, where would I buy these o-rings and what size would I ask for? All information appreciated, thanks.    Gene

Gene:

I purchased my O-rings from this vendor on eBay:

http://cgi.ebay.com/200PC-Small-Mini-Rubber-Washer-O-Ring-Seal-Set-Plumbers-/280702281823?pt=UK_DIY_Materials_Plumbing_MJ&hash=item415b28e85f

Title: Re: Grip screws
Post by: backupr9 on July 05, 2011, 10:40:10 AM
WHY NOT USE A LITTLE LOCK-TITE BLUE?
Title: Re: Grip screws
Post by: Reinz on July 05, 2011, 12:21:55 PM
Some guys had trouble with the Blue "grabbing" too tight and ending up stripping their screw heads.

Now this may be a different  story with Yankee's new and improved scews.  

Would you like to be our Guinea Pig ?  ;D
Title: Re: Grip screws
Post by: backupr9 on July 05, 2011, 10:30:38 PM
I've already put them in with Loctite ("Guntite") blue.  Don't plan to take them again unless there is an issue with trigger spring.  I guess we'll see, but I do have excellent gunsmith tools when needed, used mostly on my Savage 99 rifles.
Title: Re: Grip screws
Post by: sslater on July 05, 2011, 10:32:07 PM
Oink! (Or whatever a Guinea Pig says.)
I put a dab of blue LocTite on Yankee's screws when I installed them a couple of weeks ago.  The blue grade shouldn't present a dis-assembly problem, but as noted in other threads, LocTite recommends applying a little heat to the fastener in order to break the material's hold.  Just a few seconds with a hot soldering iron against the Allen wrench will do it.

Steve
Title: Re: Grip screws
Post by: backupr9 on July 05, 2011, 10:45:00 PM
Good to know....thanks Steve.
John
Title: Re: Grip screws
Post by: tracker on July 05, 2011, 10:50:24 PM

I used the soldering iron on the screw but either way works better than no heat.
Title: Re: Grip screws
Post by: Reinz on July 06, 2011, 03:54:40 PM
I forgot about the heat.  But then, I don't ust Locktite, I  just use fingernail polish and it works fine.
Title: Re: Grip screws
Post by: tracker on July 06, 2011, 05:14:15 PM

That is probably a better idea but I think I'll try John's screws without an adhesive for a range session and see how tight they stay. Loctite is out for me.
Title: Re: Grip screws
Post by: kjtrains on July 06, 2011, 09:22:06 PM
Quote
I forgot about the heat.  But then, I don't ust Locktite, I  just use fingernail polish and it works fine.

Reinz.  I don't change grips or screws, but I like your idea on the fingernail polish.  I'll definitely keep that in mind when the time comes.  My spare set of blues will go on the R973 at some point.    :)
Title: Re: Grip screws
Post by: tracker on July 06, 2011, 09:51:55 PM

As previously noted I didn't change grips or screws either until a screw head failed at a range session. Richard has said that he loosens the screws once in awhile, takes the grips off, and prevents the alleged dissimilar corrosion issue. Not a bad idea to exercise the screws once every so often. I would recommend changing the factory screws for a higher quality product.
Title: Re: Grip screws
Post by: kjtrains on July 06, 2011, 09:55:52 PM
I will do that once I notice a loose screw and agree, for sure, it's a good idea.
Title: Re: Grip screws
Post by: 3kushn on September 19, 2011, 05:56:06 PM
I wrote about this a couple of years ago. I'm not a gunsmith but I do know more than most about torque.  Keeping this simple and short.  

Old man Allen was a sharp dude.  He designed the hex key/socket system so that the key size will give you the proper torque when they flex.  Its impossible to over tension the screws assuming the screws are quality 12.9 spec, and the keys are made to the spec Allen set.  Try to apply more and the key will simply bend and eventually break.

That being said the joint is medium hard so that gives plenty of error tolerance.  

It would be nice to have a number though.  Gootntite doesn't work with my brain.

A few good brands of torque screwdrivers.
Sturtevant Richmont (the first cam over screwdriver)
Basic copies
CDI
ASG
Wera

But without a spec?  Why have one.
Title: Re: Grip screws
Post by: tracker on September 19, 2011, 06:03:16 PM

Beats me.
Title: Re: Grip screws
Post by: Reinz on September 19, 2011, 11:54:31 PM
Good point

Now I'm curious