Doco Overboard
Ultimate Member
Has anybody attempted to decrease saddle clearance by adjusting the arm on a op-rod?
OP ROD ARM BENDING
- Thread starter Doco Overboard
- Start date
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j_h_smith
Ultimate Member
- Jul 28, 2007
- 28,516
Nope. Way beyond my comfort level.
My Toy
Ultimate Member
I sent 2 M1 Garand op rods to Columbus Machine Works, Inc. 3 weeks ago. If you go on their web site they specialize in bending op rods to original specs and rebuilding worn guide lugs. They should be getting back to me any day to let me know what they believe needs to be done to my 2 rods. The handle on one rod I sent them noticeably angles uphill when viewed from the back of the receiver.
I've successfully performed a number of procedures outlined in Kuhnhausen's shop manual on the M1/M1a but adjusting an op rod arm seems like you ought to let someone that knows what they are doing perform that. I somehow think if you screw it up you probably don't get a lot of redos.
I've read some good reviews of their work.
I've successfully performed a number of procedures outlined in Kuhnhausen's shop manual on the M1/M1a but adjusting an op rod arm seems like you ought to let someone that knows what they are doing perform that. I somehow think if you screw it up you probably don't get a lot of redos.
I've read some good reviews of their work.
Orlando
Active Member
Why decrease the clearance? What issue is your op rod having?
Doco Overboard
Ultimate Member
Theirs nearly twice the clearance in between the saddle and the barrel. I think would operate in a more repeatable manner if there was not as much clearance due to vibration alone, however there is no problem with function now. The inside of that arm has a radius milled into it that looks like a special fixture would have to be made (round on one side, milled flat on the other) to allow for a vertical bend to occur when its clamped in a vice that wouldn't allow the arm to become twisted or kinked because of the concave section. Seems like it would be easy to do the wrong thing without having a particular way of holding the rod correctly.
Orlando
Active Member
if rod does not bind with tilt test and rifle functions fine I would leave it alone. Just my opinion
dist1646
Ultimate Member
This will probably give some of you a heart attack. I have seen one of the top Garand smiths in the country correct an op rod using a heavy mallet to strike the rod while it was resting on his work bench. He told me before he did it that I probably wouldn't want to watch! I certainly do not have that level of comfort!
dist1646
Ultimate Member
Doco Overboard
Ultimate Member
10-4 thanks for the advice, I want to get a worn cracked or to short op rod to experiment on one day. Theirs low yield in ruining something that works without a problem now, I just wanted to see how the rifle would react if I could accomplish a slight bend without ruining it.
Orlando
Active Member
To out the proper bends in a op rod there is a special jig that is used. You may get lucky and get it right but a bend to get the saddle closer to the barrel may make it rub elsewhere
Doco Overboard
Ultimate Member
Thats why I asked about bending the arm only behind the saddle and the rod hooks towards the handle, not the rod itself. Maybe its better better to bring the guide stud closer to spec even though it runs straight and does not come close to a dismount yet. There is just more slack in the saddle than what has been recommended for accuracy, so I thought I would find out from someone who may have done one to see what the consensus was.
Orlando
Active Member
if it really bothers you send it to Columbus Machine who has the proper tools to put rod back in spec.
Doco Overboard
Ultimate Member
Doesnt bother me enough to get it welded on just yet, I would look for another rod first anyhow.
Take it to Charlie Malooney. Off Edmonson AVe near the beltway exit. Great Garand smith. Will fix it while you wait. Only takes cash from new customers... google Charlie Malooney... find his email and website. you will not regret. Not cheap, but done right.
http://www.charliemaloney.com/
http://www.charliemaloney.com/
Last edited:
Doco Overboard
Ultimate Member
Sent him an email, Ill find out what he says.
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