GP100 Cylinder Issue?

aaronbagby · January 20, 2013, 12:21 PM

Yesterday, I purchased a used GP100 (blued 4" model) with a few speedloaders for $440. It is a very old revolver; the guy told me he bought it in 1991. It looks fantastic, especially for its age. The cylinder locks up nice and tight as well. However, when I got it home I noticed that when the cylinder is open, it doesn't always free-spin clockwise. It has no issues turning the other way, but sometimes (not always) it will "hang up" when turning the other way. I don't know how big of an issue this really is, but I'm curious to see if any of you have experience with this. Thanks.

m&p45acp10+1 · January 20, 2013, 12:29 PM

Clean it well. Then give it a light touch of oil. Let the oil sit for a few minutes to penetrate. Then wipe it off. Then try it. It could be that it just needs a bit of oil.

Also try taking it out, and shooting it. See how it feels while shooting it.

James K · January 20, 2013, 01:12 PM

I don't know whether to feel bad, or just amused, that a gun made in 1991 is described as "a very old revolver".

Jim

g.willikers · January 20, 2013, 01:19 PM

I was thinking the same thing.
But I'd trade him years, though.

Hammerhead · January 20, 2013, 01:45 PM

Point it down and try it.

aaronbagby · January 20, 2013, 03:31 PM

"Very old" by my standards, since I was born in '89 and I've bought only new or lightly used guns up until now. As far as the cylinder goes, I've oiled it twice. It really seems like it's getting hung up on something physically.

GP100man · January 20, 2013, 05:20 PM

Get a can of brakleen & blast it out with it , then with compressed air all while pushing the ejector rod to work out the crude & deposits of carbon .

I use Rem oil in this area as it does`nt seem to attract deposits as bad .

& as mentioned pointing it up or down will have a bearing (pun intended) on how free it spins.

aaronbagby · January 21, 2013, 02:00 AM

Decided to do a full disassembly of the gun, and I've got the crane separated from the cylinder. Regardless of cleaning/oiling of all internal parts, it still seems like it doesnt want to spin clockwise most of the time. It still randomly decides to work flawlessly sometimes, then after a few spins, its back to square one. It's very strange. I'm looking at the most basic two pieces involved, and I really can't see what could be the cause. I think I may just take it to a gunsmith to be sure.

5thShock · January 22, 2013, 10:20 AM

Please come back and let us know what it was and how it is.

EdInk · January 22, 2013, 11:18 AM

JUst send it to Ruger.

Whirlwind06 · January 22, 2013, 01:54 PM

^^ What he said. I don't think the cylinders on the GP100 are made to disassembled any further then you have already. At least not without the right tools.

GP100man · January 22, 2013, 08:53 PM

I have seperated a cyl from the crane on a Redhawk & twice on a GP .

Fairly simple proceedure but it takes 4 hands to put em back together.

That`s when I went to the flush & blow to clean it .

If I had the time I`d love to build a jig to do it , on second thought no I would`nt !

Daggitt · January 22, 2013, 09:51 PM

Likewise on the Redhawk cylinder. Took mine apart once. Won't do it again voluntarily.

January 20, 2013, 12:21 PM	#1
aaronbagby Junior Member Join Date: March 5, 2012 Posts: 10	GP100 Cylinder Issue? Yesterday, I purchased a used GP100 (blued 4" model) with a few speedloaders for $440. It is a very old revolver; the guy told me he bought it in 1991. It looks fantastic, especially for its age. The cylinder locks up nice and tight as well. However, when I got it home I noticed that when the cylinder is open, it doesn't always free-spin clockwise. It has no issues turning the other way, but sometimes (not always) it will "hang up" when turning the other way. I don't know how big of an issue this really is, but I'm curious to see if any of you have experience with this. Thanks.

January 20, 2013, 12:29 PM	#2
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,930	Clean it well. Then give it a light touch of oil. Let the oil sit for a few minutes to penetrate. Then wipe it off. Then try it. It could be that it just needs a bit of oil. Also try taking it out, and shooting it. See how it feels while shooting it. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.

January 20, 2013, 01:19 PM	#4
g.willikers Senior Member Join Date: September 28, 2008 Posts: 10,442	I was thinking the same thing. But I'd trade him years, though. __________________ Walt Kelly, alias Pogo, sez: “Don't take life so serious, son, it ain't nohow permanent.”

January 20, 2013, 05:20 PM	#7
GP100man Senior Member Join Date: August 1, 2007 Location: Tabor City , NC. Posts: 1,969	Get a can of brakleen & blast it out with it , then with compressed air all while pushing the ejector rod to work out the crude & deposits of carbon . I use Rem oil in this area as it does`nt seem to attract deposits as bad . & as mentioned pointing it up or down will have a bearing (pun intended) on how free it spins. __________________ GP100man

January 22, 2013, 11:18 AM	#10
EdInk Senior Member Join Date: May 27, 2009 Posts: 3,968	JUst send it to Ruger. __________________ Sic Semper Tyrannis

January 20, 2013, 01:12 PM	#3
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	I don't know whether to feel bad, or just amused, that a gun made in 1991 is described as "a very old revolver". Jim

January 20, 2013, 01:45 PM	#5
Hammerhead Senior Member Join Date: May 31, 2004 Location: Minnesota Posts: 2,432	Point it down and try it.

January 20, 2013, 03:31 PM	#6
aaronbagby Junior Member Join Date: March 5, 2012 Posts: 10	"Very old" by my standards, since I was born in '89 and I've bought only new or lightly used guns up until now. As far as the cylinder goes, I've oiled it twice. It really seems like it's getting hung up on something physically.

January 21, 2013, 02:00 AM	#8
aaronbagby Junior Member Join Date: March 5, 2012 Posts: 10	Decided to do a full disassembly of the gun, and I've got the crane separated from the cylinder. Regardless of cleaning/oiling of all internal parts, it still seems like it doesnt want to spin clockwise most of the time. It still randomly decides to work flawlessly sometimes, then after a few spins, its back to square one. It's very strange. I'm looking at the most basic two pieces involved, and I really can't see what could be the cause. I think I may just take it to a gunsmith to be sure.

January 22, 2013, 10:20 AM	#9
5thShock Senior Member Join Date: August 28, 2006 Posts: 400	Please come back and let us know what it was and how it is.

January 22, 2013, 01:54 PM	#11
Whirlwind06 Senior Member Join Date: March 3, 2006 Location: NE Ohio Posts: 998	^^ What he said. I don't think the cylinders on the GP100 are made to disassembled any further then you have already. At least not without the right tools. Last edited by Whirlwind06; January 22, 2013 at 10:18 PM.

January 22, 2013, 08:53 PM	#12
GP100man Senior Member Join Date: August 1, 2007 Location: Tabor City , NC. Posts: 1,969	I have seperated a cyl from the crane on a Redhawk & twice on a GP . Fairly simple proceedure but it takes 4 hands to put em back together. That`s when I went to the flush & blow to clean it . If I had the time I`d love to build a jig to do it , on second thought no I would`nt ! __________________ GP100man

January 22, 2013, 09:51 PM	#13
Daggitt Senior Member Join Date: March 11, 2011 Posts: 321	Likewise on the Redhawk cylinder. Took mine apart once. Won't do it again voluntarily.

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