Firing Pin Won’t Budge |
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Jimkinmd
Newbie Joined: May 14 2017 Location: Maryland USA Status: Offline Points: 8 |
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Posted: December 28 2017 at 1:56pm |
he!!o I have a MK 4 no.1 that I cannot get the firing pin to budge. I have broken one tool trying to break it free. I have the bolt filled with Hoppes 9 and have been letting it soak and occasionally trying to get it to move. Are there any suggestions that anyone has used to correct this issue?
Any help would be greatly appreciated. |
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A square 10
Special Member Donating Member Joined: December 12 2006 Location: MN , USA Status: Offline Points: 14452 |
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first off you will get more responses with proper nomenclature - its a no4 mkI i think , the resaon i say this is because the wrong info leads to the wrong answers or a rambling [not that this would be abnormal here] bunch of responses that dont help much , and lots of questions you could avoid ,
secondly , i think hoppes might work but you may want to go to a penetrating oil or brake free/cleaner to loosen solidified cosmoline and such , lastly are you sure its not been deactivated by welding the pin ? just askin as ive heard of this , i wish you much luck getting this functioning and i know someone smarter than me will jump in soon with good ideas ,
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Canuck
Special Member Donating Member Joined: January 17 2012 Location: Agassiz BC Status: Offline Points: 3535 |
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Just a thought here but did you remove the striker lock screw at the back of the cocking piece before trying to remove the striker (firing pin)?
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Castles made of sand slip into the sea.....eventually
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Jimkinmd
Newbie Joined: May 14 2017 Location: Maryland USA Status: Offline Points: 8 |
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A Square, thank you for the correction, I have fired this rifle many times hence wanting to clean up the bolt, firing pin etc. so I’m sure it’s not welded. I hope the Hoppes loosens it up..
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Jimkinmd
Newbie Joined: May 14 2017 Location: Maryland USA Status: Offline Points: 8 |
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Yes, screw removed and cocking piece is off and all cleaned up.
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Goosic
Senior Member Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8792 |
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The down and dirty way to remove a No4 Mk1 firing pin is to pull the cocking piece back far enough that you can get a pair of vise grips onto the firing pin while putting a crecent wrench over the cocking piece and slowly turn the cocking piece to the left.
I've had to resort to this on several occasions over the decades and have yet to ruin a firing pin or cocking piece. I did spray the threaded area down with a penetration oil first I must add... |
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Goosic
Senior Member Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8792 |
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I just read this quote and noticed you said the cocking piece is off? If that's the case and the firing pin is still inside the bolt body,find a screw that will screw onto the firing pin itself,run it down far enough that you can tap on it with a small hammer while gripping the bolt body tightly with your other hand or,grip the bolt body tightly with your hand smack the back of the firing pin down onto a piece of hardwood. |
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Goosic
Senior Member Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8792 |
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Other then whatever crud you have built up inside the bolt body and as you've stated,the cocking piece has been unscrewed from the firing pin,the only thing else inside the bolt body with the pin is the spring.
Use this stuff called PB Blaster and soak the inside of the bolt,and then start tapping on the back of the pin. There should be enough spring tension to pop that pin right out. I have to ask,so forgive me. Did you unscrew the bolt head completely off the bolt body? |
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Jimkinmd
Newbie Joined: May 14 2017 Location: Maryland USA Status: Offline Points: 8 |
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Thank you all for the help. I have tried everything and decided i don’t want to break the firing pin or bolt and have given up. I may just take it to a gunsmith.
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Honkytonk
Senior Member Joined: December 30 2017 Location: Brandon Mb Status: Offline Points: 4770 |
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Try heating the piece up. If it is gunk, it will melt. With the Hopes, this would also be that little bit extra to break rust. Use one of those hand held propane tanks. Do not over heat and change the temper of the steel.*** Hand held propane bottle, like used for soldering.
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Stanforth
Senior Member Joined: January 08 2017 Location: Oxford England Status: Offline Points: 773 |
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To be safe you could use a domestic oven (providing your wife's out) that way you can control the temperature. Put it on a small tin tray to catch any fluid.
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Life.. a sexually transmitted condition that is invariably fatal.
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paddyofurniture
Senior Member Joined: December 26 2011 Location: NC Status: Offline Points: 5255 |
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Try putting the bolt in a cold place like out side and let it cool down.
As steel expands at warm temp it get smaller at cold temp at different rates you might be able to get it to release. Try fighting it slightly then try to undo it. Might break the threads loose. |
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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hoadie
Moderator Group Joined: March 16 2006 Location: Niagara/Canada Status: Offline Points: 9003 |
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Just don't use the bath tub - like I did. That's the reason I know what a "conniption" looks like |
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Loose wimmen tightened here
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Goosic
Senior Member Joined: September 12 2017 Location: Phoenix Arizona Status: Offline Points: 8792 |
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I think his problem is built up dirt, grease,rust,all kinds of stuff. He has stated that he has removed the cocking piece. There's just a firing pin and a spring inside the bolt body.
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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That's something odd it should just slide (slurp?) out.
Try leaving it in a can of penetrating oil overnight? |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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paddyofurniture
Senior Member Joined: December 26 2011 Location: NC Status: Offline Points: 5255 |
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I have had good luck with items soaking in diesel fuel in a coffee can for a few days.
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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