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Sm1.5k Problems


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#1 Jacob Harris

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Posted 15 January 2009 - 10:58 PM

Ok so I have a sm1.5k and I plugged the pump on it and did petg barrels. After shooting it for a while, the black piece (rubber sealer) on the end of the firing pin inside the air tank, kept coming undone if I ever pumped it 4 times or more. So after it kept coming loose time after time, I dropped some glue in there to hold it in place and it stays now, but now there is a small leak. I believe that the glue may have corroded the black piece slightly, or caused some irregularity in it, so that a small leak occurred. Any advice on what I should do? I was wondering if the black rubber sealer could be replaced...(I think its a faucet washer, but im not sure if thats correct and if it is, what size it may be)

Any help is appreciated...
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#2 TantumBull

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Posted 15 January 2009 - 11:06 PM

First, spray a shot load of silicone spray into the valve. If that doesn't work...

Second, you're going to have to open your tank. Cut it at the ridge where the tank gets wider at the base. Make a straight a cut as possible. Before cutting, draw a line down the tank, so you can line it up later. Now fuck around with the tank, cover everything in silicone grease, and glue on the piece that keeps popping off. Try to fix it anyway you see fit. But I don't think you can replace that piece. It's custom made for the tank, plus it has a different density than most other rubber fender washers. Epoxy everything back up with PLASTIC SPECIFIC epoxy. If it still doesn't work then replace it with an AT2K tank.

If you screw up your tank cutting it open don't blame me. I've never tried it, but I've seen it done to a 2K with success. If you follow my instructions all SHOULD go well.

Also, shoot a PM to imaseoulman. He has extensive experience with 1.5K's.

Edited by TantumBull, 15 January 2009 - 11:09 PM.

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#3 Jacob Harris

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Posted 15 January 2009 - 11:10 PM

First, spray a shot load of silicone spray into the valve. If that doesn't work...

Second, you're going to have to open your take. Cut it at the ridge where the tank gets wider at the base. Make a straight a cut as possible. Before cutting, draw a line down the tank, so you can line it up later. Now fuck around with the tank, cover everything in silicone grease, and glue on the piece that keeps popping off. Try to fix it anyway you see fit. But I don't think you can replace that piece. It's custom made for the tank, plus it has a different density than most other rubber fender washers. Epoxy everything back up with PLASTIC SPECIFIC epoxy. If it still doesn't work then replace it with an AT2K tank.

If you screw up your tank cutting it open don't blame me. I've never tried it, but I've seen it done to a 2K with success. If you follow my instructions all SHOULD go well.

Also, shoot a PM to imaseoulman. He has extensive experience with 1.5K's.



Ok thanks. Yeh I actually cut the the tank open exactly where you mentioned and I glued the piece better and cleaned up anything that might have been causing the leak, but when I glued the tank back together, I still had a small leak. Although no damage caused by cutting the tank open fortunately :( But if need be, I can cut it open again. The gun works fine if you shoot right after you pump, but if you were to wait say 10 seconds before you shoot, it doesnt have much velocity.
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#4 TantumBull

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Posted 15 January 2009 - 11:56 PM

Posted Image
Get something LIKE this (Not necessarily this because its 90% pure. As long as that other 10% doesn't have some form of petroleum, then your fine, though.). Best shit in the world as far as lubricants that also seal go. I got mine at home depot, looks pretty similar. I can't remember, mine may of been 90% pure as well. Oh well, it can't make too much of a diff.

Edited by TantumBull, 15 January 2009 - 11:56 PM.

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