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Male threads sheared off inside cross- Fixed

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Male threads sheared off inside cross- Fixed

Unread postAuthor: saefroch » Mon Oct 25, 2010 2:54 pm

The title says it all... I was tightening on the barrel getting ready to film a shot at 1,000psi when this happened. Yeah...

Image

Buying another cross isn't an option I'm eager to consider. Suggestions welcomed.
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Last edited by saefroch on Mon Oct 25, 2010 6:46 pm, edited 1 time in total.
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Unread postAuthor: velocity3x » Mon Oct 25, 2010 3:09 pm

You can remove the broken piece with an easy-out made for pipe. You can get them at a plumbing supply....usually.
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Unread postAuthor: metalmeltr » Mon Oct 25, 2010 3:29 pm

What is wrong with buying a new cross?

Internal pipe wrench will take out the broken pipe.

http://www.homedepot.com/Building-Mater ... 0053#specs
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Unread postAuthor: saefroch » Mon Oct 25, 2010 4:26 pm

Thank you for the suggestions. I'd much rather avoid buying a new cross since I'd have to order one and that would delay work even farther. I thought I'd finally be able to video something of good quality today... so I'm impatient. :evil:
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Unread postAuthor: jrrdw » Mon Oct 25, 2010 5:02 pm

A good sharp chisel and hammer will walk that busted fitting right out of there... :wink:
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Unread postAuthor: saefroch » Mon Oct 25, 2010 6:24 pm

Problem solved. Thanks jrrdw. Method inspired by your suggestion, though brass is too soft for the chisel method.

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Just sharing for future reference. Hammered in the drill bit, then placed the pliers around the drill bit and against the cross, then tried to twist it, and voilà!
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Unread postAuthor: Gun Freak » Mon Oct 25, 2010 6:42 pm

Good idea! Did you do that shot yet? I bet it will be awsome :twisted:
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Unread postAuthor: saefroch » Mon Oct 25, 2010 6:44 pm

"that shot"? I shot at 900psi and at 1,000psi, no vids yet. Danged loud though.
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Re: Male threads sheared off inside cross- Help?

Unread postAuthor: Gun Freak » Mon Oct 25, 2010 6:46 pm

saefroch wrote:I was tightening on the barrel getting ready to film a shot at 1,000psi when this happened. Yeah...

I assumed you haden't done it yet because you were confronted with this problem. How do you get that pressure?
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Unread postAuthor: saefroch » Mon Oct 25, 2010 9:52 pm

By jumping up a little and pushing down on the pump. :roll:

Why does nobody expect that I can and do or think it's impossible to apply more force than your weight to an object???????
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 26, 2010 12:36 am

saefroch wrote:Why does nobody expect that I can and do or think it's impossible to apply more force than your weight to an object???????


Not recommended for health reasons.

Tom Gaylord wrote:Then, on a suggestion from one of his airgunning friends, he tried "rapping" the air into the reservoir - similar to the method used with the Korean-built Yewah Triple B Dynamite shotgun. Rapping means imparting extra momentum to the pump through inertia. With this method, Dennis raised the pressure ceiling of the 5/8" plain piston pump to about 810 psi, but at a high cost to his personal well-being. He said his wrists hurt so much from doing the rapping just once that he had to recuperate for several days thereafter. So rapping, while possible, is not a practical way to fill vintage reservoirs to higher pressures, and it's doubtful that anyone ever did it more than once.
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Unread postAuthor: Technician1002 » Tue Oct 26, 2010 1:28 am

The bigger hazzard is when a cheap plastic handle fails while the excessive force is applied. It is a good way to get a trip to the hospital.
http://www.spudfiles.com/forums/to-all-spudders-that-have-hand-pumps-t18495.html

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Unread postAuthor: jackssmirkingrevenge » Tue Oct 26, 2010 1:32 am

Technician1002 wrote:The bigger hazzard is when a cheap plastic handle fails while the excessive force is applied. It is a good way to get a trip to the hospital.


Not as effective ashaving a check valve fail on you though :?
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Unread postAuthor: saefroch » Tue Oct 26, 2010 6:49 am

jackssmirkingrevenge wrote:rapping, while possible, is not a practical way to fill vintage reservoirs to higher pressures, and it's doubtful that anyone ever did it more than once.

Uhhhh yeah I've done it about 100 times at least, and since I am not suffering any ill effects... :roll: I would say Tom Gaylord is somewhat unqualified to be writing about such.

Technician1002 wrote:The bigger hazzard is when a cheap plastic handle fails while the excessive force is applied. It is a good way to get a trip to the hospital.

Mine happens to 1" steel bar stock.

And... I've only pushed my check valve 200psi past it's 1,000psi pressure rating. There's a reason I went with a commercial check valve for high pressures.
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 26, 2010 6:54 am

saefroch wrote:I would say Tom Gaylord is somewhat unqualified to be writing about such.


In spite of his uninspiring family name *chuckle* he's actuallyquite an authority on the subject.
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