Glenfield Model 60 Old Style

tex45acp · April 16, 2023, 05:23 PM

I have a customer that brought me Glenfield Model 60 (Old Style without bolt hold back/release lever) that has a JM stamp on the barrel. l detail stripped, cleaned and lubricated the gun. I don't believe the gun has ever been cleaned or lubricated. I took it out to cycle a few rounds through after finishing and it will not fire every round. I have tried 5 different brands of .22LR ammo from standard velocity to stingers. Same for all. I personally believe it is either the firing pin length worn or the hammer spring or possibly a combination of both.
Does anyone know what the length of the firing pin should measure and what the hammer spring tension should be? I would like to measure them both before replacing either or both. This is the first Glenfield or Marlin 60 I have ever worked on. The gun is a tack driver with all the ammo I shot through it,
Oh and all the ammo that would not fire the first time was run back through and it fired!!

ammo.crafter · April 16, 2023, 08:09 PM

Both parts are about $15.00 in total. I would make this small investment and see if that fixes the gun.

tex45acp · April 18, 2023, 06:24 AM

Ammo.crafter,
Where would I find them for that price? The cheapest firing pin I have found is $35.00.

Hawg · April 18, 2023, 10:18 AM

Is the firing pin perfectly flat at the tip? If it is it's probably the recoil spring.

jcj54 · April 18, 2023, 03:00 PM

Is weak and not quite going all the way forward. When the hammer falls it closes the bolt fully, and robs enough energy to cause a light strike.
Wolff gunsprings sells high quality replacements at gunsprings.com.

April 16, 2023, 05:23 PM	#1
tex45acp Senior Member Join Date: March 18, 2005 Location: The Great State of Texas Posts: 1,026	Glenfield Model 60 Old Style I have a customer that brought me Glenfield Model 60 (Old Style without bolt hold back/release lever) that has a JM stamp on the barrel. l detail stripped, cleaned and lubricated the gun. I don't believe the gun has ever been cleaned or lubricated. I took it out to cycle a few rounds through after finishing and it will not fire every round. I have tried 5 different brands of .22LR ammo from standard velocity to stingers. Same for all. I personally believe it is either the firing pin length worn or the hammer spring or possibly a combination of both. Does anyone know what the length of the firing pin should measure and what the hammer spring tension should be? I would like to measure them both before replacing either or both. This is the first Glenfield or Marlin 60 I have ever worked on. The gun is a tack driver with all the ammo I shot through it, Oh and all the ammo that would not fire the first time was run back through and it fired!! __________________ “All that is required for evil to triumph is for good men to do nothing.“

April 16, 2023, 08:09 PM	#2
ammo.crafter Senior Member Join Date: June 25, 2006 Location: The Keystone State Posts: 1,951	60 Both parts are about $15.00 in total. I would make this small investment and see if that fixes the gun. __________________ "Peace is that brief glorious moment in history when everybody stands around reloading". --Thomas Jefferson

April 18, 2023, 06:24 AM	#3
tex45acp Senior Member Join Date: March 18, 2005 Location: The Great State of Texas Posts: 1,026	Ammo.crafter, Where would I find them for that price? The cheapest firing pin I have found is $35.00. __________________ “All that is required for evil to triumph is for good men to do nothing.“

April 18, 2023, 03:00 PM	#5
jcj54 Senior Member Join Date: February 28, 2011 Posts: 188	Most likely the recoil spring Is weak and not quite going all the way forward. When the hammer falls it closes the bolt fully, and robs enough energy to cause a light strike. Wolff gunsprings sells high quality replacements at gunsprings.com.

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April 18, 2023, 10:18 AM	#4
Hawg Senior Member Join Date: September 8, 2007 Location: Mississippi Posts: 16,072	Is the firing pin perfectly flat at the tip? If it is it's probably the recoil spring.