Author Topic: Please Help!!!!  (Read 7161 times)

Offline Buckys

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Please Help!!!!
« on: March 23, 2010, 05:47:50 AM »
I just finished installing the Maccari kit ( http://www.airrifleheadquarters.com/catalog/item/251488/7718385.htm) on my Big Cat and now I am unable to get it cocked. I believe I am having the same type of problem as this member(http://www.gatewaytoairguns.com/airguns/forums/thread-view.asp?tid=26160&mid=206857#M206857), however I'm not sure.  I'm relatively new to airgun tuning and this is my first time rebuilding a springer. Took down and re-assembled according to Charlie's (or it it Bob?) B18/B19 Super-Tune guide (http://charliedatuna.com/Airgun%20Info.htm).  I'm at my wits end...don't what i'm doing wrong. I know its got to be sooo simple. Anyone's help is greatly appreciated, as the weather is finally getting nice and my trigger finger is developing a rather nasty rash...lol.  

-Buckys-


Offline tjk

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Re: Please Help!!!!
« Reply #1 on: March 23, 2010, 07:35:16 AM »
Take it back apart, and try again. You may not have the spring seated on the top hat correctly. What I meen is the spring end may be sitting on the end of the TH and not on the collar. I know it sounds crazy, but sometimes wierd things happen when reassembling these shooters. I always place the top hat on the spring and slide it along with the spring guide and shoe into the action as a single unit. Hope this helps, tjk
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Offline Buckys

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Re: Please Help!!!!
« Reply #2 on: March 23, 2010, 08:39:19 AM »
tjk...thanks for your reply!...still banging my head here..lol.  I guess thats possible.  It dosent seem like the cocking foot is even engaging the spring. There no resistance when I cock the gun at all until the last maybye 10% of cocking arm travel, and even then, it's next to nothing. I guess I'll try taking it back apart like you said...thanks tjk.  Anyone else with advice is GREATLY appreciated!  
-Buckys-

Offline ezman604

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Re: Please Help!!!!
« Reply #3 on: March 23, 2010, 09:40:46 AM »


Attach a picture of the cocking lever, shoe and cocking slotarea. Need to see if it's engaging the piston at all.



Dave



Crosman/Revelation 760 PumpMaster (Vintage 1967)
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Offline djmyers

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RE: Please Help!!!!
« Reply #4 on: March 23, 2010, 10:12:14 AM »
The spring on the out side of your trigger assembly should be on the inside. The first pic shows the spring running up the out side. I don't know if that would effect the way it functions but might.
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Offline Uncle J

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Re: Please Help!!!!
« Reply #5 on: March 23, 2010, 12:17:50 PM »
My problem was the tab under the rear of the trigger assembly, yours looks ok. But I do agree with djmyers that the spring on the cocking slide is on the outside and should be on the inside of the slide. Don't know if this is the problem.

Jeff
(Whisper .177, Marauder .22)

Offline Bogey

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RE: Please Help!!!!
« Reply #6 on: March 23, 2010, 12:28:14 PM »
GTA members.    Does this sound like the cocking lever  shoe is not engaging the slot in the piston properly?   Or at all.   Could piston slot  be mis-aligned?
Gentleman of Fortune.

Hum-bug!

Offline longislandhunter

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RE: Please Help!!!!
« Reply #7 on: March 23, 2010, 12:34:31 PM »
That piston slot being mis-aligned sounds like a likely culprit....

Jeff
\"If it was easy it wouldn\'t be hunting, it would be shopping.\"

Offline ezman604

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RE: Please Help!!!!
« Reply #8 on: March 23, 2010, 12:37:59 PM »
That's why I asked for a picture of the shoe & slot area.
Crosman/Revelation 760 PumpMaster (Vintage 1967)
Powerline 1000S .177 (semi-tuned by me)
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Offline shady816

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RE: Please Help!!!!
« Reply #9 on: March 23, 2010, 01:04:56 PM »
check out your bottom photo the piston is rotated to one side only revieving half the cocking slot there for your cocking shoe, lever whatever is not in the correct spot.

Offline LongIslandArcher

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Re: Please Help!!!!
« Reply #10 on: March 23, 2010, 02:37:56 PM »
Don't forget to reinstall the "E" clip on the slotted pin that holds the slotted cocking slide AFTER you move the spring back to the underside of it.

Offline Buckys

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RE: Please Help!!!!
« Reply #11 on: March 23, 2010, 02:56:59 PM »
Allright guys...think i've got it narrowed down.  Ezman604 and Shady816 have sharp eyes...I think I have the cocking lever in the wrong spot, but still not 100% sure. Here are the pics you guys asked for.  Please let me know your verdict so I can get this bi*ch back together!  I honestly appreciate everyones generosity...this forum is AMAZING!  

P.S. Where can I get spare E-clips...I broke that missing one :0

Offline shady816

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RE: Please Help!!!!
« Reply #12 on: March 23, 2010, 03:23:25 PM »
hi bucky from where you are now try and hold the lever tight to the tube and start cocking it paying close attention to the where the lever starts to grab the piston it will probubly be self explainitory when you see it but as for the piston seems to be rotated around correctly for what i see.

Offline tjk

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Re: Please Help!!!!
« Reply #13 on: March 23, 2010, 03:35:44 PM »
Check your linkage roller bearing and make sure it's on the pin of the secondary linkage arm. Your rifle butilizes what is called an "articulated" cocking arm,...that is two levers working in unison. Without the roller bearing, the foot at the bottum of the cocking arm,... Where it pushes the piston back,...may in fact be sliding past the pistons cockinf contact area of the slot. Not very likely, but like I said before,.. sometimes weird things just happen!!! LOL's. Whatever happens in the next few hours, just relax and don't get excited!!! At least not too much!! tjk
397 Benji-98\' model    
Marksman  0035, My Fav!,CDT T\'d
Crosman Sierra-Pro,.177
Benji 392 08\'
CDT TT\'d RWS 34 .22,CP 4-16X40 AO
MM T\'d Marksman 0035
Crosman G1 Extreme
Daisy PowerLine 1000
TF-97 .22
B-28A MM T\'d
B-28 OEM Tuned by me
Beeman .22 RX-2 w/Theoben GR
Beeman .177 R1 Santa Rosa

Offline ezman604

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RE: Please Help!!!!
« Reply #14 on: March 23, 2010, 03:55:05 PM »


If you have one around, check with Harbor Freight orFastenal for an e-clip. Also check AutoZone or other auto partsstore for one but they probably don't carry any that small. Harbor Freight does for sure.



Are you trying to cock the gun with it still out of the stock? If so, then what the guys are saying about thecocking lever and the roller is true. Theupper section of the cocking lever has to stay more parallel with the barrel through the cocking cycle. The stock helpshold it in this position instead of pivoting outward and preventing the cocking lever from pushing on the piston to cock it.



Also one thing thatbothers me but MAY just be my eyes playinga trick on me. The spring pressure SHOULDbepushing the piston firmly against the cocking shoe. It appears from the picture to have a gap between the shoe and the piston cocking slot, indicating no preload from the spring. May justbe me though. Let us know.



Dave



Crosman/Revelation 760 PumpMaster (Vintage 1967)
Powerline 1000S .177 (semi-tuned by me)
Benjamin Super Streak .177/.22 (semi-tuned by me)
Benjamin Trail NP XL1500 (bone stock)
Benjamin Trail NP XL1100 (project gun)
TF89 .22 (tuned by Gene)
Winchester 1000WS .177 (semi-tuned by muwah)
QB57 (l