AIR Check Valves
Thread Starter
Advanced
Joined: Nov 2016
Posts: 81
Likes: 7
From: Terre Haute, IN
AIR Check Valves
I decided to take a look at my check valves and glad that I did. I found a lot of black junk (carbon?) in both of them., A couple of questions: 1. What do they actually do. 2. Should I be able to blow throw them freely? I can blow through them with some effort. 3. Would it be okay to clean them with brake or carb cleaner?
Thread Starter
Advanced
Joined: Nov 2016
Posts: 81
Likes: 7
From: Terre Haute, IN
I appreciate the response. One side is fairly easy to blow through, and the other is almost impossible. I might go ahead and replace them sometime this winter. They cleaned out pretty well.
Last edited by wedoo2; Dec 30, 2020 at 04:26 PM.
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,284
From: Hartford WI
No, it is a 1 way valve. You should NOT be able to blow into both sides or something is wrong.
Melting Slicks
Joined: Jul 2008
Posts: 2,269
Likes: 142
From: Ottawa Ontario
Team Owner
Joined: Jul 2004
Posts: 28,430
Likes: 3,284
From: Hartford WI
IIRC, one side of the valve is barbed and that is not restricted. The hose goes to it and pumps air into the exhaust manifolds. The screwed end goes into the manifolds and should not let air back into the hose. This is on both sides
