RCU Forums - View Single Post - Enya SS 40 BB Break-in
View Single Post
Old 08-20-2003 | 11:06 AM
  #10  
Sport_Pilot's Avatar
Sport_Pilot
 
Joined: Jan 2002
Posts: 16,916
Likes: 0
Received 1 Like on 1 Post
From: Acworth, GA
Default Enya SS 40 BB Break-in

Those ridges on the piston tell me it is cast iron. The instruction manual should identify it. Also the top of the new piston will be darker.