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Old 05-17-2012, 04:18 PM #1
sppb
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Ego 08 Valve guide

I have a small leak coming out the front of the barrel/bolt.

I have already replaced all relative orings, except the 14 or 14x2 around the valve, current dont have any. it has also been oiled and torn down various times

Gun shoots fine, i was able to chrono it consitently at 223+- 2 with around 1000 psi left in a ninja 68/4500 with a standard ninja reg no shims removed. HPR wasnt turned in to much. I got around 7 shots off before i ran out of air, taking 1 shot at a time, no hopper. Im guessing leak+shots= out of air asap.

Could it be the cup sealor an oring?

Last edited by sppb : 05-23-2012 at 09:16 AM.
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Old 05-17-2012, 06:21 PM #2
Invert O.G
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Get some automotive valve lapping compound and lap the valve and cup seal and ur good only takes about 20 min tops
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Old 05-17-2012, 07:03 PM #3
sppb
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could you link me to an example of this valve lapping compound?

what is it exactly?
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Old 05-17-2012, 07:31 PM #4
ICUPatNIGHT
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http://www.v6z24.com/howto/valvelapping

I understand you are not lapping valves but just to provide an example that isn't a mobile website.

Valve lapping compound is a lubricant with Light abrasives in it to rub the surface being lapped free of defects and burs. The goal is to create a surface between the two objects that seals well. Lapping will help to eliminate and high spots as well in the valve seat or on the valve.
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