RCU Forums - View Single Post - How to check engine compression
View Single Post
Old 12-20-2006 | 02:58 AM
  #2  
alan0899
 
Joined: Apr 2006
Posts: 2,275
Likes: 0
Received 0 Likes on 0 Posts
From: Warialda NSW, AUSTRALIA
Default RE: How to check engine compression

G'day Mate,
That is completely normal, I have two 46AX's, & they were both tight when new unrun, but they bed in & turn over easier, but with plenty of compression.
When you flick the prop over compression, does the prop bounce back & forth? If so then bearings & compression are OK.
Only start to worry if it won't start & run smoothly, then you may have a problem.