What is this pipe?
What is this pipe?
- Thread starter 1984 CJ7
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It is just part of your emission system I wouldn't worry to much about it.
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It goes from your air cleaner to you catalitic converter, however I am not sure if it circulates clean air to the cat or crappy air from the cat back into the engine either way I lost mine years ago 
DJ1980CJ5
Jeeper
That's a "anti backfire" valve for the air injection system. The air injection system forced clean air into the exahust to help reduce emissions via an engine driven air pump-which may be long gone. More O2, less CO emissions.
The bell shaped piece is where a poppet valve resides. It only allows flow-one way in case of an exhaust backfire.
If you do not have to meet emissions requirements-LOSE it.
The bell shaped piece is where a poppet valve resides. It only allows flow-one way in case of an exhaust backfire.
If you do not have to meet emissions requirements-LOSE it.