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stock head cracks |
09-22-2009, 09:12 PM | #13 | ||||||
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stock head cracks
Hello all, yes I am still new to responding to threads, so if I make mistakes, bear with me. In the last thirty years I have had the chance to observe many, many cracks in stocks. I would feel confident in saying that at least one in three double stocks have head cracks, not just Parkers, but all makes.
The problem is two fold. the stock design incorporates many function necessary inlettings . These inlettings serve to weaken the longitudinal integrity of the wood. The bigger problem is the fact that early lubricants were animal based. Lard was the lube of choice for the Romans. For many decades, lubricants were organically based. The affect that these lubes had on the wood, were not considered by the design engineers. Animal based lubes contain fatty acids, these acids attack the wood. They compress the cells and basically rot. This causes shrinkage and discoloration. Thus the dark coloration where wood meets metal. As the wood softens with the absorbtion of oil, it becomes weaker and eventually yields to recoil, resulting in a split. I have witnessed many different forms of repair attempts, most of which, compromise the integrity and appearance of the stock. The only way to effectively repair a stock is to fully remove the offending oil,grease and fatty acids. Doing so allows you to utilize any of the modern,effective epoxies to bond the wood. Once repaired it should be stronger than the original configuration. With a little creative staining, the repair becomes invisible. The wood is proud on parkers as noted. I feel that this tolerance is more to avoid chipping than a consideration for rework. If you look closely, all wood to metal contact surfaces, have a slight inward bevel, to allow for compression. There is no home process to acomplish this task. It needs to be done by a restoration specialist . I am sure that with some research, you can find someone that can do this for you. Anything else is nothing more than a quick fix. |
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09-23-2009, 08:06 AM | #14 | ||||||
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Soak in acetone until all the gunk is gone, then Superglue the interior surfaces. The older epoxies added thickness to already tight fits within the head.
Last edited by Bruce Day; 09-23-2009 at 08:48 AM.. |
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Acetone- use in well ventilated areas- |
09-23-2009, 10:10 AM | #15 | ||||||
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Acetone- use in well ventilated areas-
Bruce- I have a chance to buy a 12 Trojan project gun- the stock head has been pinned, the LOP with a crappy old Red head pad is 13.5""- all that is fixable as a project- BUT- the previous owned superglued or epoxied the trigger guard bow into the stock channel, it's in their tighter than Dick's Hatband- you can even see the "gunk" on each edge of the guard bow "tail section"-- would acetone remove that and allow me to remove the guard bow- the front of same partially covers the rearmost of the three trigger plate screws--Thanks!!
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09-28-2009, 08:56 AM | #16 | ||||||
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Francis, I don't know what is the solvent for the isocyanite (Superglue) glues. You'll need to research that on your own or call the manufacturer.
In view of the recent news concerning an unfortunate fellow whose several girlfriends took out their vengance on him with Superglue, I trust there is a solvent. |
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The Following User Says Thank You to Bruce Day For Your Post: |
09-28-2009, 11:36 AM | #17 | ||||||
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"Debonder" available for CA glues is typically acetone-based. It takes a while for it to soften though. We used to keep the detachable applicator tips for our CA bottles in a jar of acetone so they were always clog-free.
However, you mentioned "superglued or epoxied." If it's epoxy, I don't think anything but heat will soften it. A heat gun or possibly hot oil as applied in a stock bending procedure would do it. When it gets hot enough to fail it usually crumbles. |
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The Following User Says Thank You to Jim Williams For Your Post: |
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