Air Injection and One Way Check Valve

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Pathfinder

Pathfinder

I am the STIG
10 Year 15 Year
Joined
Aug 8, 2006
Threads
124
Messages
1,371
Location
Palm Harbor, FL
My rubber air injection hose is non-existant and my oneway check valve is now a 2nd exhaust opening into my engine compartment. I have both the new hose and one way check valve courtesy of the previous owner however I cannot get the old oneway valve off. Any ideas, tips, and or tricks that I can use to get the old one off.

I've tried vice grips however with the tight space was unable to get it off. I am affraid I am going to bend or worse break the pipe going to the exhaust.

Anyone every tackled this before? I am tired of my engine compartment smelling like exhaust.
 
I used the vise grips, but I also had to heat the check valve with a small propane torch until I was able to remove mine and put the new on one.

Good luck.

David
 
I'm in the same spot and when I have tried to aggressively go after the check valve, I know I'm going to break the air rail. So, I'm getting a whole new air rail and figure I'll go from there. There are numerous penetrating oils that can also help it get loose - check with any auto store.
 
Spray some penetrating oil on it and let it set overnight. Then get a plumbers torch and heat it up really good. A pair of big vice grips shold get it off. The pipe to the manifold has a place in it so that you can get a wrench on it to provide counter torque, too. I just had to replace mine about 2 weeks ago. 2 pairs of vice grips was all I needed.
 
Pathfinder, just confirming your are talking about the check valve that goes down to the exhaust pipe?

I got mine out fairly easily. It's a bit awkward, I think I used an adjustable wrench with a side of elbow grease.
 
I had to replaced mine and I decided I couldn't get it off in place easily. It was the original one and rusted on good. I hacksawed the whole pipe off and removed it from the cruiser where I could get the valve off easily. Then went to a local muffler shop and had him weld it back in with the new one already installed.
 
No this is the one after the rubber hose coming off the air rail. I tried a propane torch and penatrating lube with no avail. I have some more lube on there and I am going to give it a go tommorrow.
 
How long did you leave the torch on there? Get that thing to where it's orange. Then it'll come off.
 
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