R700 firing pin spring replacement problem

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21 November 2018, 03:46

just say moe

R700 firing pin spring replacement problem

OK - so I'm going to replace the spring on a 1999 vintage R700. Got the tool, compressed the spring, knocked out the pin, and ....nothing. Cocking piece will not budge. I have an old J-Lock assembly that came apart fine. What am I doing wrong?
thanks

21 November 2018, 04:42

dpcd

Nothing; tap it with a BFH and it will shoot out; be careful. Maybe a small FH. What happens is that the pin causes a little burr inside and back then they fitted tightly.

21 November 2018, 05:08

Bobster

Agree w/DpcD and also soak with Marvel Mystery Oil or Naptha to dissolve the hardened lube that may also be affecting it. This lube is responsible for most if not all of the M700 trigger issues. We had an old M700 in the shop today that was locked up with hardened lube. It exhibited the notorious AD when the safety was let off after pulling the trigger. Took 3 hrs to clean and test. Now is a super shooter with a crisp trigger. Like I've said before, Remington was the victim of defective lubricant not defective design.

21 November 2018, 05:55

just say moe

Thanks - I'll try both.

21 November 2018, 07:14

JTEX

quote:
Originally posted by Bobster:
Agree w/DpcD and also soak with Marvel Mystery Oil or Naptha to dissolve the hardened lube that may also be affecting it. This lube is responsible for most if not all of the M700 trigger issues. We had an old M700 in the shop today that was locked up with hardened lube. It exhibited the notorious AD when the safety was let off after pulling the trigger. Took 3 hrs to clean and test. Now is a super shooter with a crisp trigger. Like I've said before, Remington was the victim of defective lubricant not defective design.

Yep. What they said.

.

21 November 2018, 07:28

dpcd

Try twisting the cocking piece too with a little wrench. It will come off quite suddenly when it does.

21 November 2018, 07:58

kendog

The harder you hit it, the easier it comes free!

I make a very small witness punch mark both on the cocking piece and on the firing pin itself before taking them apart to aid in reassembly. They go back together much easier that way. 50% of the time they are not drilled exactly on center, and the hole will not line up right if 180 out.

21 November 2018, 17:51

Jim Kobe

quote:
Originally posted by kendog:
The harder you hit it, the easier it comes free!
I make a very small witness punch mark both on the cocking piece and on the firing pin itself before taking them apart to aid in reassembly. They go back together much easier that way. 50% of the time they are not drilled exactly on center, and the hole will not line up right if 180 out.

And that is good advice also, don't ask how I know

21 November 2018, 19:37

matt salm

Just decompress the assembly, clamp the firing pin (at the end of the spring...large diameter portion) in padded vise jaws and twist the cocking piece back and forth. It will come loose and be captured in the cocking piece...no small parts shooting across the room

23 November 2018, 07:29

just say moe

Thanks for the replies - I knocked the pin out and when I removed it from the jig the dang thing fell apart! I suppose the previous liberal application of appropriate language loosened it up!