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| VM Empire Where the VM-68's and PMI-3 Come out to play |
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04-28-2011, 10:49 AM
| #1 (permalink) | |
| Active Member  Join Date: Feb 2007 Location: Spring City, PA | Do I need a new cupseal?
Where can I get a new cupseal? Or are there o-ring replacements I can get and just re-use the metal parts? I have a leak down the barrel that won't go away.
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04-28-2011, 12:38 PM
| #2 (permalink) |
| copenhagen Junkie  Join Date: Feb 2011 Location: Fallbrook, Ca |
try the o-rings if that dosent work then its ur cup seal. i have seen them on ebay for 20 buck but ive also been told another markers cup seal will work too the type escapes me at the moment. but be patient and one of the wiser members of mcb will chim in and help u out, im sure.
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04-28-2011, 12:47 PM
| #3 (permalink) |
| MCB Member  Join Date: Jul 2006 Location: Coventry R.I. |
the 2 orings on the valve are bottle orings, if you are removing the valve you might as well change them. inspect the valve seat on the valve pin, if it looks "hairy" or gouged it needs replacing. I have had real good success with polishing the valve seats, just put the valve pin in a high speed drill and use steel wool on the seat until its smooth.
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04-28-2011, 03:42 PM
| #4 (permalink) | |
| Post Whore  Join Date: Aug 2006 Location: Southern Maine | Quote:
But like capitalpaintball said, smoothing out the valve seat, and adding some good lubricate can usually fix 75% of the leaks. EDIT: Also Palmers sells new replacement tune-up kits that includes a new cupseal. PTP sells them also, but I believe have sold out of New/Old stock. Ron-ASP on ebay always seems to have them for sale.
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05-11-2011, 04:08 AM
| #5 (permalink) |
| Seasoned Member  Join Date: Jul 2006 Location: Upstate South Carolina |
I was trolling around for the same info. Thanks guys.
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05-11-2011, 01:23 PM
| #6 (permalink) | |
| Active Member Join Date: Feb 2007 Location: Spring City, PA |
These are older Autococker ones. Would they possibly work? 
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05-11-2011, 05:40 PM
| #7 (permalink) |
| Post Whore Join Date: Aug 2006 Location: Southern Maine |
Yes. Its not ideal. They are a fraction shorter then the VM68 cupseal. But otherwise have the exact same dimentions. That shorter length might mean you would loose 10fps that you have to make up by either adjusting the bolt/hammer/spring/pressure/etc.
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