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					Originally Posted by wiebuschk  Installed the AOS. I think the ribbed hose on bottom was split. I poked me finger right through it. The Y was solid and the check valve was working. I also replaced the ICV with a $20 ebay one. I worked like a champ. She is purring with no smoke. Leaving her on stands and will change oil tomorrow. | 
	
 
If you have something like a Handy Vac you can attach it to the vacuum canister and pull a vacuum on the canister and see how long it holds the vacuum.