Was cleaning my Leman with a L&R Late English and noticed this. I read somewhere that L&R has a upgraded sear and tumbler for the early locks. Has anyone replaced a mainspring on one of these locks without the other parts? Thanks, Flintleather
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Cracked Mainspring
- Thread starter Flintleather
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You should start a pool on how many more shots till it breaks! 
What was the response from L&R?
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My first thought was casting line / flaw, but it does kind of look like it walks off the centerline a little.
Like SDSmlf, I would want to know what L&R has to say about it.
Like SDSmlf, I would want to know what L&R has to say about it.
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I'd bet they replace it N?C!!
Robby
Robby
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appears to be cracking on both sides of the stirrup notch! bizarre!. talk to L&R! shouldn't need to replace anything but the spring.
lateral fracture is weird!
lateral fracture is weird!
They are good folks at L&R. A free replacement mainspring is my guess. I'm told the newer sear is better than the original. Personally, I would send them the lock and let them install the new mainspring and sear. If they send you a spring, you will have to perform a small amount of filing to get the spring into the lock plate.
bummer.
I e-mailed L&R this morn, probably get an answer on Monday during normal hours. I’ll let ya guys know what Tim says.
DuncNZ
54 Cal.
If that spring snapped at full **** , could it go through the stock below it ? I know it has happened but I have never seen it .
It would most likely just snap with no harm to the rifle.
erhunter
45 Cal.
I have dealt with L&R in the recent past and they were great with furnishing a new part no problem or charge. I did send the whole lock to them though. They gave me great customer service. Send the whole lock back in my opinion and let them fix it.
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Call L&R
is it a crack or a liner mark from casting? looks like the e latter.
It’s definitely a crack, removed the spring and it’s through to the other side.
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My bet is Tim will take care of it.
Yep, he sent me a couple sear screws with a longer shoulder for my Manton locks no charge. 
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Probably been that way to some extent since it was quench hardened from a casting or extrusion seem in it. You will find forged actions with striation layers (seems) in them when cleaning them up for case coloring or bluing job. Square mortise's or cuts are always a weak point for cracks when the part hits the quench water/oil and contracts.
I don't believe I have ever encountered a liner crack in a spring like that. It usually occurs in the turn back area, cross ways.
It makes me wonder if it would continue and ever fail at all ?
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Just talked to Tim, gonna send the whole lock because i also have a problem with half **** clearance between flint and frizzen. I either use a 3/4 square bevel down or the 3/4 by 7/8 flint bevel up and they both contact and hold open the frizzen at half ****. Flintleather
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