Ego rammer leak

[Rupe]

I have just rebuilt me 05 ego and when i went to gas it up there is a leak comming out of the ram area, when you remove the bolt the leak increases and gets louder, iv checked the seals and they are all ok.
Any ideas?
Thanks in advance

 

[Dead_Snakey]

Had the same problem on one of mine.. Replaced the Exhaust valve and.. problem sorted