Pump Stroke Too Hard

[flyingpootang]

@ fishmishin & flyingpootang - the pump rod isn't sticking. that was one of the first things I checked.

Now I've tried recocking the bolt with a drum stick and it's just as difficult. So maybe I do need to change the bolt. I'll let you know if it works.

Drum Stick?? As in chicken for dinner?? JK. If it's hard to push back manually its gotta be the on/off pin or the trigger rod is too long. More likely the trigger rod. You should have a credit size gap between the back of the trigger and the front of the trigger rod. If you have a gap check your upper grip screws aren't to long and keeping the sear forward. If not what the length of your on/off pin and what o-ring set up are you using?

[KKPASA]

Not a chicken drum stick. HA HA HA
It's a drum stick that I got from a Motley Crue concert.

I have the gap needed between the trigger and the trigger rod.

I don't have a micro meter to measure the on/off pin. Do you think that if I sand it down a little it would be easier to cock it back?

I don't know what o-ring setup I'm using.

I thought I would try to use the marker as a semi and it works flawlessly. I decided to switch out the Level 10 bolt with a regular one. It is the same. It's the last quarter inch that is difficult to push. I have to snap the pump rod back. If I try to pull the pump handle back slowly I can't recock it. I guess I'll have to leave it like this for a while. Thanks for all you help guys. It's been very helpful.

[flyingpootang]

If you take off the pump handle, rod, wave spring, and switch out the cut bumper for a normal one will it shoot in semi normally??? Also if you take pics we can ID your parts...

[flyingpootang]

Just a quick note since your new with mags/pumpmags are you using a cut bumper that fits inside of the wave spring?

[KKPASA]

@ flyingpootang thanks for the feed back.

I've been playing with mags for ten years but only within the last two years have I been playing with a pumpmag. I think my novice comes from the fact that other than cleaning, oiling and the occasional part swap I don't know how to customize my mags.

I have a trimmed down blue bumper that sits inside the wave spring. Yes to convert it back to semi I take out the pump rod, the cut down bolt spring, the wave spring and trimmed down blue bumper. Then replace it with a gold spring and a unaltered blue bumper.
As a semi it works fantastic.

I've just been watching videos and reading on here about some of the other pumpmags and wondered why I have to pop mine so hard to recock it. I've seen guys recock theirs with just a finger pull. That's what I want. I was wondering if the cut down bolt spring could be the problem. If it was longer then I would have the springs assistance in recocking it. Just an idea.

If I had someone in my area that knew more about pumpmags, or mags in general, than I do, then I would have them look at it.

I can definitely take some pics. Just let me know what you would like to see a picture of and I can do it.

Thanks again for all the help.

[Smoothice]

Pay for shipping and I'll look at it.

What kind of pump kit is it? It sounds like your pump rod is binding on the rail. May need to put a little extra bend in it. Cerberus kits and rainman kits both have that problem.

I've had an agd kit that needed a LOT of work because of the body I was using.

[flyingpootang]

Pay for shipping and I'll look at it.

What kind of pump kit is it? It sounds like your pump rod is binding on the rail. May need to put a little extra bend in it. Cerberus kits and rainman kits both have that problem.

I've had an agd kit that needed a LOT of work because of the body I was using.

I'll also offer to look at it for free. Not saying smooth doesn't know enough or he's not trust worthy because he does/is, I'm just curious what is hanging it up

[KKPASA]

@ flyingpootang & Smoothice Thank you for the offers to look at my marker.
I'm sure you can understand my apprehension in sending out my pumpmag. What states are you two located in? Maybe if it's not too expensive I might take one of you up on it.

Any comments on my idea about the bolt spring? I think, after all the help from the great minds here on AO that it has to be that my wave spring is too strong. Or that my bolt spring is too weak to help me cock it.

I have an original pump assembly that I got from Drizit and it has everything except a pump rod so I had to make one out of a coat hanger. I think it works as it should. Everything slides smoothly, except the last eighth on an inch where it locks in the bolt behind the sear.

[PumpMag]

KKPASA,

I'm also curious about this too.

Without seeing or shooting it in person, I'm guessing that it may be possible that your pump rod is too short?

I'm also willing to look at it at no charge, if you pay shipping both ways.

I've been shooting Automag Pumps since 2004, so I really know my way around them.

Is the body and rail factory pump-milled? Or are they machined out corrrectly?

Did you try a classic valve, non-ULT on-off assembly, and level 7 bolt?

[PumpMag]

I have an original pump assembly that I got from Drizit and it has everything except a pump rod so I had to make one out of a coat hanger. I think it works as it should. Everything slides smoothly, except the last eighth on an inch where it locks in the bolt behind the sear.

The coat hanger pump rod is the culprit!

[KKPASA]

Ok, I'm willing to consider that it's the pump rod, but why? I can't remember who suggested I use coat hanger wire but they said they've used it with no problems.

And now how would I get another?

[flyingpootang]

I'm in NorCal, and smooth is in the same state. With smooth's and my feedback are impeccable, we're both outstanding members here and other forums, so I don't think you have anything to worry about Either way we can still help via this post...

My feedback:
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[PumpMag]

Ok, I'm willing to consider that it's the pump rod, but why? I can't remember who suggested I use coat hanger wire but they said they've used it with no problems.

I think it works as it should. Everything slides smoothly, except the last eighth on an inch where it locks in the bolt behind the sear.

The length might be too short by 1/8".

Perhaps also the hanger wire material you are using is a softer material and too small a diameter therefore missing the bolt and sliding under the bolt instead when you are pumping slow. As mentioned earlier, there is also a slight bend upwards in the end tip section of the pump rod.

And now how would I get another?

try Jay8541 from Cerberus Innovations or Rainman229

[PumpMag]

I'm in NorCal, and smooth is in the same state. With smooth's and my feedback are impeccable, we're both outstanding members here and other forums, so I don't think you have anything to worry about Either way we can still help via this post...

Both flyingpootang & Smoothice get my endorsement! Both are Clareball veterans!

[PumpMag]

The length might be too short by 1/8".

Perhaps also the hanger wire material you are using is a softer material and too small a diameter therefore missing the bolt and sliding under the bolt instead when you are pumping slow. As mentioned earlier, there is also a slight bend upwards in the end tip section of the pump rod.

Here is how it should look when you pump it back against the bolt:



Here is how it should look when you release the pump handle forward:



Pics By Brent Hoefling AKA RamboPreacher