Acceptable leakdown

[cat-vi]

What is acceptable leakdown on our engines in %? Most of my cylinders is abt. 12 – 13% but got one at 17%, is this acceptable?

 

[Quickstop [UK]]

Re: Acceptable leakdown

Is it in the green range on your tester?

Below 20% is considered acceptable. Racing engines are <10% (wikipedia).

My tester is green below 20%.

 

[cat-vi]

Re: Acceptable leakdown

Is it in the green range on your tester?

Below 20% is considered acceptable. Racing engines are <10% (wikipedia).

My tester is green below 20%.

My Moroso leakdown tester does not have any color grading, below 20 % is green on yours, I'll mark mine, thanks again.
Annybody else tested their engines by leadown? just to have a comparison.