VM68 cup seal material and stem questions

pump · 08-23-2007, 02:49 AM

what is the stock, standard or most widley used material for the cup seal?
white (urethane?) or the black (rubber?) seal?

what is the stock, standard or most widley used length for the stem?
slightly longer than a cocker 1" 3/32nds or longer 1" 1/8th

EvilEd · 08-26-2007, 10:51 PM

well for real Vm cup seals it's urethane. The Black rubber was aftermarket replacement But they never worked right since the rubber don't like the cold very much.

A.C. Basbas · 08-26-2007, 11:13 PM

Yeah... try getting an old urethane cocker seal and cutting it down.

pump · 08-27-2007, 03:02 AM

Quote:

Originally Posted by EvilEd

well for real Vm cup seals it's urethane. The Black rubber was aftermarket replacement But they never worked right since the rubber don't like the cold very much.

ah so the rubber might be easier to find

Quote:

Originally Posted by A.C. Basbas

Yeah... try getting an old urethane cocker seal and cutting it down.

so VM stems are shorter than cocker? thought the VM was longer

EvilEd · 08-27-2007, 11:19 PM

Yes the cocker cupseals are shorter but only by a hair but that hair has made some problems for some people. But I never did.
A.F.A. the rubber ones go don't even waste your time they suck. they mite work in a cocker but not a VM

pump · 09-08-2007, 07:55 AM

hey would you guys know where i can find the rubber cup seals?
i dont even care what length if its the 1" 3/32nds or longer 1" 1/8th as long as its rubber ill buy them

Fluff · 09-08-2007, 07:57 AM

No idea on where to get the rubber ones. To my experience, the brass ones have worked best in both VM and Cocker applications

pump · 09-08-2007, 08:57 AM

ah the part the spring pushes against and the part that holds the cup seal is brass....just the sealing material is rubber...not urethane

like this

"My broken original Sterling exhaust valve below a VM-68 exhaust valve.
(Older stock WGP Autococker exhaust valves are nearly identical to VM-68 exhaust valves.)"

Tugboater203 · 09-09-2007, 06:37 PM

PTP still does runs of cupseals give them a call. I made an order but it took them 3 months to get enough interest to do the next run. I put in black magic ones instead but they aren't around anymore.

Tug

pump · 09-09-2007, 10:18 PM

yeah i emailed PTP they have the Urethane seals in them

08-23-2007, 02:49 AM	#1 (permalink)
pump Seasoned Member Join Date: Aug 2006 Location: under Kapiolani on ramp Posts: 590	VM68 cup seal material and stem questions what is the stock, standard or most widley used material for the cup seal? white (urethane?) or the black (rubber?) seal? what is the stock, standard or most widley used length for the stem? slightly longer than a cocker 1" 3/32nds or longer 1" 1/8th __________________ Hawaiipb.com Hawaii's Paintball forum NIB Warp Feeds FS Autotriggers for Sliders and Dye Pivots FS

08-26-2007, 11:13 PM	#3 (permalink)
A.C. Basbas Pants Mafia Join Date: Feb 2007 Location: Maynard, Massachusetts. Posts: 1,706	Yeah... try getting an old urethane cocker seal and cutting it down. __________________ -Dragon Brigade- wWw #32 WDP Angel Ir3 F/S/T! MCB Feedback -PbN FeedBack

09-08-2007, 07:55 AM	#6 (permalink)
pump Seasoned Member Join Date: Aug 2006 Location: under Kapiolani on ramp Posts: 590	hey would you guys know where i can find the rubber cup seals? i dont even care what length if its the 1" 3/32nds or longer 1" 1/8th as long as its rubber ill buy them __________________ Hawaiipb.com Hawaii's Paintball forum NIB Warp Feeds FS Autotriggers for Sliders and Dye Pivots FS

09-08-2007, 07:57 AM	#7 (permalink)
Fluff Widows son Join Date: Mar 2006 Location: Up two streets, Take a right Posts: 1,986	No idea on where to get the rubber ones. To my experience, the brass ones have worked best in both VM and Cocker applications __________________ After the game... the King and the Pawn both go back into the same box. - Italian Proverb If you drink from a bottle marked 'poison,' it is almost certain to disagree with you, sooner or later.-Lewis Carroll Cthulhu '08-Why settle for the lesser evil? 843rd bomber wing "Peace Is Our Profession"

09-08-2007, 08:57 AM	#8 (permalink)
pump Seasoned Member Join Date: Aug 2006 Location: under Kapiolani on ramp Posts: 590	ah the part the spring pushes against and the part that holds the cup seal is brass....just the sealing material is rubber...not urethane like this "My broken original Sterling exhaust valve below a VM-68 exhaust valve. (Older stock WGP Autococker exhaust valves are nearly identical to VM-68 exhaust valves.)" __________________ Hawaiipb.com Hawaii's Paintball forum NIB Warp Feeds FS Autotriggers for Sliders and Dye Pivots FS

08-26-2007, 10:51 PM	#2 (permalink)
EvilEd Rec Poster Join Date: Jul 2007 Posts: 71	well for real Vm cup seals it's urethane. The Black rubber was aftermarket replacement But they never worked right since the rubber don't like the cold very much.

08-27-2007, 11:19 PM	#5 (permalink)
EvilEd Rec Poster Join Date: Jul 2007 Posts: 71	Yes the cocker cupseals are shorter but only by a hair but that hair has made some problems for some people. But I never did. A.F.A. the rubber ones go don't even waste your time they suck. they mite work in a cocker but not a VM

09-09-2007, 10:18 PM	#10 (permalink)
pump Seasoned Member Join Date: Aug 2006 Location: under Kapiolani on ramp Posts: 590	yeah i emailed PTP they have the Urethane seals in them __________________ Hawaiipb.com Hawaii's Paintball forum NIB Warp Feeds FS Autotriggers for Sliders and Dye Pivots FS

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