|
|
Post by rossman40 on Jun 29, 2009 14:55:16 GMT -5
That is a new one for me. I have never seen one go weak so fast. I have seen them broken (from rust) and still work till the rust flakes slowed things up.
|
|
|
|
Post by Dave W on Jun 29, 2009 15:02:01 GMT -5
I can never recall seeing this problem on the old board either. I seem to have quite a few incidents when it comes to Murphys Law.   |
|
|
|
Post by Harley on Jun 29, 2009 17:13:00 GMT -5
It's been awhile since I dissassembled my own bolt and I can't quite remember the "insides", but is it possible, just as a check of spring tension, to slip a spacer of some sort over the firing pin to increase the tension? Other than swapping in your buddy's spring, you don't have anything better to do till Savage re-opens.
Harley
|
|
|
|
Post by Dave W on Jun 29, 2009 17:42:02 GMT -5
Harley, I don't know if I have anything that is the perfect fit to use as a shim, but good idea.
After a little further comparison of bolts. My cocking pin has a lot more slop in it than my buddies bolt(Thanks Larry). His spring is stiffer there is no doubt, but I have a hard time believing the spring is too weak to set off a primer.
|
|
|
|
Post by rossman40 on Jun 29, 2009 19:04:12 GMT -5
You want the cocking piece pin to be no more then .020 from the bottom of the slot when the bolt is decocked. This is what sets the preload of the spring. What you want to avoid is the cocking piece pin hitting the bottom of the slot before the firing pin hits the bolt head. If you can see a large amount clearance or another trick is to put a small dab of modeling clay at the bottom of the slot and then decock the bolt and see how thin it gets smashed (one turn of the cocking piece is about .030"). Or just drop the firing pin assembly in without the cocking piece sleeve and eyeball it in till it's close and then verify/fine tune with a preliminary assembly.
|
|
|
|
Post by Dave W on Jun 30, 2009 15:59:39 GMT -5
You can get a .025 shim between the cocking piece pin and the action if this is what you are referring to Ken.
|
|
|
|
Post by rossman40 on Jul 1, 2009 11:54:22 GMT -5
Dave, what sometimes happens is guys will set the firing pin protrusion by just setting the bolthead on the firing pin and then re-assemble. They fail to re-check once assembled and adjust the other end of the firing pin. Below is a bolt in the cocked position,  When the bolt is in the uncocked or fired position the cocking piece pin shaft will be in the position of the red dot. You want the dimension "A" clearance about .020-.030". You should be able to wiggle the pin a bit when decocked, if not the firing pin assembly is being stopped by the cocking piece pin hitting the bolt body instead of the firing pin assembly coming to rest on the bolthead. This can beat the snot out of the bolt body, cocking piece, cocking piece pin and even the threads on the firing pin where it screws into the cocking piece. Too much clearance and you run the risk of not having enough of the firing pin threads engaged in the cocking piece and not enough preload on the firing pin spring. To get faster lock time Savage made the firing pin fairly light then what you would find say on a Mauser or Remy. You need all the energy you can get from the spring. After adjusting the firing pin you want to do a preliminary assembly to verify you have your firing pin protrusion you want and clearance for the cocking piece pin. The area in dimension "B" is called the cocking ramp. What happens if the bolt is not all the way down is the cocking piece pin will hit the ramp at point "C" first, expending the firing pin's energy before the pin gets a hit on the primer. Also look real close, real real close, at your firing pin tip. Does it have a nice rounded tip. I have seen just the very tip (like .030") of the firing pin break off. |
|
|
|
Post by Dave W on Jul 1, 2009 15:06:55 GMT -5
Thanks Rossman, lots of helpful info. I will check into this later. I did not adjust the rear of the firing pin before re-assembling.
|
|
|
|
Post by Dave W on Jul 1, 2009 18:43:24 GMT -5
Rossman-You da man  . That was the problem apparently, adjusted the rear of the pin and fired 9 primers in a row. ;D I'll clean it up and try some loads. Thank you for all the time you put in to solving this and for all the pics. |
|
|
|
Post by edge on Jul 2, 2009 10:04:50 GMT -5
|
|
|
|
Post by rossman40 on Jul 2, 2009 10:39:26 GMT -5
I was going to maybe fine tune the bolt thread to clarify things.
|
|
|
|
Post by edge on Jul 2, 2009 11:15:09 GMT -5
Fine tune away If you want something different in the Tips let me know. edge. |
|
|
|
Post by boarhog on Jul 2, 2009 12:24:16 GMT -5
Rossman!
You are simply amazing! Since stumbling onto this board, I have been regularly impressed by your vast and accurate knowledge, plus your ability to show and tell for some of us slower witted (me) shooters. If you can improve a trigger on a Mossberg 464 lever action thuty-thuty, I have a job for you! LOL
|
|
|
|
Post by ozark on Jul 2, 2009 16:43:59 GMT -5
I have been depressed with rosman40 several times in the last couple of years. Yes, depressed is the right word. It is depressing to be normal and so far behind him that I can't even see his tracks in the snow.
|
|
|
|
Post by Jon on Jul 2, 2009 17:56:32 GMT -5
Ozark. So very well put.
|
|
|
|
Post by DBinNY on Jul 2, 2009 20:23:29 GMT -5
I have been depressed with rosman40 several times in the last couple of years. Yes, depressed is the right word. It is depressing to be normal and so far behind him that I can't even see his tracks in the snow. Don't be depressed Ben; be thankful that we have him. We have a great diversity of talent on this board and that is what makes it so great. You provide us with your vast knowledge of rifles and shooting techniques. Everybody shares their knowledge so openly and that is how real progress is made. Everybody wins. |
|
|
|
Post by Dave W on Jul 2, 2009 21:19:19 GMT -5
Thanks again Rossman and to all, she shot great tonight with no problems.
|
|
|
|
Post by rossman40 on Jul 2, 2009 22:59:16 GMT -5
I'm glad we got you going Dave.
I'm just glad to be part of the collective here. Everybody's contribution is what makes this board a pretty good place to be.
A good picture is worth a thousand words. And I know some guys can't read fast so I type slow ;D ;D
|
|
wd40
Button Buck
Posts: 5
|
Post by wd40 on Jul 4, 2009 21:37:03 GMT -5
Its sounds as if the spring is weak, I may have the same problem after reading and haveing misfires also.
|
|
. That was the problem apparently, adjusted the rear of the pin and fired 9 primers in a row. ;D
