Author Topic: cleaning gunk out of an old wood crack  (Read 3115 times)

Offline Justin Urbantas

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cleaning gunk out of an old wood crack
« on: December 03, 2020, 07:40:00 PM »
How would you guys go about cleaning old gunk out of a crack in a stock in preparation for glueing?  There's probably oil and dust and grime that needs cleaning out. Acetone?



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Offline rich pierce

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Re: cleaning gunk out of an old wood crack
« Reply #1 on: December 03, 2020, 07:49:45 PM »
Acetone would be my first choice as well.
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Offline D. Taylor Sapergia

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Re: cleaning gunk out of an old wood crack
« Reply #2 on: December 03, 2020, 07:52:24 PM »
Justin, I think you need to remove the metal components starting with the barrel, lock, trigger guard, trigger, etc.  I assume then the two pieces of the broken stock will separate.  Examine each part of the stock and see if there is corruption there, and if so, remove it almost surgically with an Xacto knife, fine chisels etc.  Keep placing the two parts together to be sure you are not removing wood that is necessary to make a close joint.  Your worst case would be if someone has tried to glue it up already.  Then there will be glue that must be very carefully cut away.  A stiff toothbrush may be all that is necessary to remove years of dust. But start by disassembling the pistol.

Using acetone:  be sure to wear surgical gloves.  I understand Acetone is highly carcinogenic and is absorbed right through your skin into your blood stream..
D. Taylor Sapergia
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Offline 577SXS

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Re: cleaning gunk out of an old wood crack
« Reply #3 on: December 03, 2020, 10:27:56 PM »
I have and old English double that was busted all up around the locks and was oil soaked. I made a copper container out of sheet copper and soaked stock in Acetone for a week then Denatured alcohol for a week. I then soaked it another week in acetone before I got the oil out and crud that built up over 100 years. I then used a really high strength epoxy to glue the stock back together. I refinished stock with CCL Traditional English oil finish. This stock tuned out beautiful and looks original. The cracks have held up to hundreds of rounds of firing.

Offline Scota4570

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Re: cleaning gunk out of an old wood crack
« Reply #4 on: December 03, 2020, 10:41:23 PM »
I'd start by hosing a can of disk brake cleaner (hexane) in the crack.  Wear a face shield!  It will damage your eyes.   You could definitely soak or even sonicate it in degreaser.  Carbon tet was the bomb for this kind of thing.  Brownells has TCE that you could use to sonicate it in.  You will have to refinish of course.

Acetone?  It is relatively innocuous from a health standpoint.  It is similar to alcohol in that respect.  We all have a little acetone, or other ketone bodies, in our blood stream.  IT is only when we get a lot due metabolic problems, extreme inhalation,  or drinking it that you have issues.  Acetone eats nitrile gloves, use rubber.

By comparison chlorinated organic solvents tend to be worse, they are great degreasers, to bad they destroy your internal organs.  .     

For solvent vapors ordinary masks are useless.  You need to use a full face APR with appropriate cartridges.  In any case use all solvents outside and do not deliberate huff them.

Perspective on chemical exposure, occasional exposure is generally not a problem.  Working with something toxic  every day and being sloppy is a problem. Chronic exposure is more dangerous.   

https://www.pure-chemical.com/msds/Acetone.pdf
« Last Edit: December 04, 2020, 01:55:06 AM by Scota4570 »

Offline Robby

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Re: cleaning gunk out of an old wood crack
« Reply #5 on: December 03, 2020, 11:06:08 PM »
I'd use the acetone as well, first I would blow it out while gently moving a pin around in the crack to make sure any foreign substances that might have found there way in there are gone.
good luck, looks like a great project!!
Robby
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Offline Curtis

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Re: cleaning gunk out of an old wood crack
« Reply #6 on: December 04, 2020, 07:19:47 AM »
Acetone would be my first choice as well.

I second what Rich said!  Use the acetone along with Taylor's advice. Clean it up good and your restoration will go much better.

Example, I repaired a gun that started like this:







and finished looking like this:







The stock had been poorly repaired probably at least 3 times previously. Took a little more than just glue, but you get the idea.

Best of luck, Curtis
Curtis Allinson
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Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing

Offline Craig Wilcox

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Re: cleaning gunk out of an old wood crack
« Reply #7 on: May 05, 2021, 09:37:07 PM »
Doggone, Curtis - were you out playing Whack-a-Mole with that rifle?  You sure did fix it up nicely.  How did you replicate that finish?  And fix the tang?  There, although it is invisible, you must have done some cutting and welding.

We will give you a Master's degree in Fine Arms Restoration.
Craig Wilcox
We are all elated when Dame Fortune smiles at us, but remember that she is always closely followed by her daughter, Miss Fortune.

Offline Daryl

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Re: cleaning gunk out of an old wood crack
« Reply #8 on: May 06, 2021, 06:50:01 AM »
Justin - your dentist's teeth-cleaning person will likely have a whack of old picks she's ready to throw out.
That's where I got a bunch of them. They would be very useful for helping with the cleaning - carefully, of course.
Since they are curved and have cutting edges, if there is old glue, that feature itself might be important.
Daryl

"a gun without hammers is like a spaniel without ears" King George V

Offline Curtis

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Re: cleaning gunk out of an old wood crack
« Reply #9 on: May 06, 2021, 07:26:15 AM »
Doggone, Curtis - were you out playing Whack-a-Mole with that rifle?  You sure did fix it up nicely.  How did you replicate that finish?  And fix the tang?  There, although it is invisible, you must have done some cutting and welding.

We will give you a Master's degree in Fine Arms Restoration.

Well thanks for the honorary degree Craig!  Can I get that framed for my shop?  ;D  I restored the gun for a friend of mine.  The old gun had seen at least two previous attempts to repair the wrist, possibly three.  The tang had been braised in a couple of spots previously so i just cut it a bit short and braised on the new tip. 



As for the wrist repair, after some stablilization I cut out the wood between (underneath) the tang and trigger plate with a jeweler's saw and slip fit a maple block in the slot, and epoxied it in place.  Then I re-inlet the tang and trigger plate.  The wood to wood fit had to be absolutely tight so I "inlet" the repair wood like an inlay, using carbon paper to check fit as I went.















As for matching the finish, I stained the wood as close to the original color as I could get, then worked some "magic" with a bit of oil paint.  The repairs were then hit with a light coat or two of tung oil.

I cut maple plugs to fill the holes left from old dowel rod repairs, nails and plastic wood that I dug out.


















Curtis
Curtis Allinson
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Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing

Offline Percy

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Re: cleaning gunk out of an old wood crack
« Reply #10 on: May 06, 2021, 05:09:18 PM »
"We will give you a Master's degree in Fine Arms Restoration." I'll second that! Amazing work.

Percy

Offline STJ1954

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Re: cleaning gunk out of an old wood crack
« Reply #11 on: May 06, 2021, 05:30:31 PM »
Chalk dust or even a a paste with alcohol and chalk dust is good for absorbing oil from gun stock. Let dry and brush off.

Offline Craig Wilcox

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Re: cleaning gunk out of an old wood crack
« Reply #12 on: May 08, 2021, 06:04:49 PM »
Curtis, we will have to award a Teacher's Certificate as well.  Really admire your photo-documenting.  I keep a camera under my workbench, but unfortunately, that is where it seems to stay.

Really did enjoy watching the steps you took along the way.  Learning a lot here on the forum, and I'm thankful that so many of us document our work in pictures.
Craig Wilcox
We are all elated when Dame Fortune smiles at us, but remember that she is always closely followed by her daughter, Miss Fortune.

Offline J. Talbert

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Re: cleaning gunk out of an old wood crack
« Reply #13 on: May 09, 2021, 04:12:12 AM »
Pretty slick work Curtis.
Nicely done,
Jeff
There are no solutions.  There are only trade-offs.”
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Offline Curtis

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Re: cleaning gunk out of an old wood crack
« Reply #14 on: May 09, 2021, 07:00:49 AM »
Thanks guys!  That gun was my first major restoration and I learned a lot working on it.  Didn't charge my friend much for the job, I mostly did it for the invaluable lessons learned of what worked and what didn't work so well.  Had to do a few things over that didn't turn out so good.   ;)  I also made a lock plate to fit the lock mortise on that rifle, someone had put a martial flintlock on the gun which obviously was originally a percussion rifle.









The next best method of learning restoration techniques is fixing your own mistakes when building a new gun!!!


Curtis

Curtis Allinson
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Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing

Offline Clark Badgett

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Re: cleaning gunk out of an old wood crack
« Reply #15 on: May 09, 2021, 09:09:51 PM »
Master's degree? That's suitable for Doctorate level.
Psalms 144

Offline Curtis

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Re: cleaning gunk out of an old wood crack
« Reply #16 on: May 11, 2021, 08:55:11 AM »
You guys are way too kind!  I appreciate your comments and apologize for hijacking the thread.



Humbly yours, Curtis
Curtis Allinson
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Sometimes, late at night when I am alone in the inner sanctum of my workshop and no one else can see, I sand things using only my fingers for backing