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Author Topic: BlackHawk MisFire  (Read 481 times)

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Offline tjf76

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BlackHawk MisFire
« on: May 08, 2005, 09:32:17 AM »
Went out shooting today and got 4 rds out of my 45colt and had a misfire.I rotated the cylinder to see what was the problem and found that the fire pin had hit the rim and not the primer???.So I removed that rd and loaded 5 more. Had the same thing happen a few more times!!!!????.Anyone have any Ideas. I just had a new hand put to it about 75 rds ago. Does it need a new fire pin?. Thanks
 
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Offline Racepres

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BlackHawk MisFire
« Reply #1 on: May 08, 2005, 10:04:02 AM »
Can't see it from here ... but you need to check the timing I bet. Sounds as if maybe the hammer is falling but the cyl ain't lined up!! W/empty gun slowly cock the hammer to full cock then try to rotate cyl.... it should not go.
Marty
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Offline tjf76

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BlackHawk MisFire
« Reply #2 on: May 08, 2005, 10:12:22 AM »
Quote from: Racepres
Can't see it from here ... but you need to check the timing I bet. Sounds as if maybe the hammer is falling but the cyl ain't lined up!! W/empty gun slowly cock the hammer to full cock then try to rotate cyl.... it should not go.
Marty


Did full cock and cylinder is nice and tight.
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Offline Racepres

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BlackHawk MisFire
« Reply #3 on: May 08, 2005, 12:13:38 PM »
all 6 holes?? if so I am very confused!!! Is it always happening w/ the same hole?? Marty
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Offline tjf76

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BlackHawk MisFire
« Reply #4 on: May 08, 2005, 01:54:34 PM »
Not sure if its the same hole or not. When the gun has full load(6rds)on rd will misfire,firing pin will hit by case rim.If i cycle back to the misfired rd it will fire.Its like the timing is off?. I just had my smith put a new hand to it because of some lock up play.It does lock up tight now.????? :?  :?  :?
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Offline Racepres

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BlackHawk MisFire
« Reply #5 on: May 09, 2005, 03:16:08 AM »
Huh!! But the hand has more to do w/ timing than "lock-up" ..I believe that the "bolt" is the thing that controls how "tight" she locks.. Probably have to ensure that it is not always the same hole. Was gonna ask abt double action but.... Duh!! my Blackhawk don't got it either!!!!  Which "side" of the  primer (as viewed from rear of piece) is the pin striking??     Marty
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Offline Mikey

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BlackHawk MisFire
« Reply #6 on: May 10, 2005, 02:50:49 AM »
tjf76 - get that revolver to a gunsmith and have it properly timed.  It is not working properly and should your cylinder fail to properly index a round that the firing pin just catches the primer on, you will ahve a detonation that make take the gun apart and part of you with it.  

The cylinder is not lining up properly (indexing).  This means that one of your chambers is not facing directly down the barrel when the firing pin hits the rim of the cartridge.  If the cylinder indexes a bit more and the firning pin connects, your cartridge may only be facing halfway down the barrel when it goes off and you're gonna have a problem.

Get it fixed before you take it back to the range.  

I'm willing to be that if you take a long enough wooden dowel or something just about the size of the bore and try to insert it right back to the firewall for every chamber you will see that one of your chambers does not index properly and the dowel will hang up on the chamber mouth.  Please get it fixed before you shoot it again.  Mikey.
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Offline gunnut69

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BlackHawk MisFire
« Reply #7 on: May 10, 2005, 07:53:09 AM »
I don't know what the smith replaced but the lockup is mainly the responsibility of bolt, although the hand can put pressure on the cylinder to keep it tight.  This is not always a good thing.  If the hand is a bit LONG it will push the cylinder past the bolt before it can drop and you will get the problem you are describing.  A short hand will almost always work if operated smartly as the cylinder is thrown forward and the bolt locks up as it rotates by, but if the hammer is drawn slowly the bolt will fail to lock.  If the hand's too long the locking notch in the cylinder is thrown past the bolt. A total firing pin miss is the result.  It most definietly needs more work.. Take it back to the smith and tell him what it's doing.  sounds like he messed up and left the hand a bit long.
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gunnut69--
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Offline tjf76

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BlackHawk MisFire
« Reply #8 on: May 10, 2005, 03:05:32 PM »
Thanks for all the help.I took it to a smith this morning,should have it back it about 3weeks. Thanks again :D
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