Stephen Tashiro
03-05-2013, 6:16 PM
What do various state emissions inspections require of the joints in an automotive exhaust system. Are they simply required not to have an obvious leak?
I helped replace the catalytic converter on a friend's car, mainly because we had never done such a job and wanted to try it. Our locale has no emission test requirement. The new converter is a fraction of an inch shorter than the OEM converter so the exhaust flanges at the joint are not "kissing". However, I think the circular gaskets in the joints are sufficient to prevent any leak. I'm curious whether other states' emission test rules require more precise work.
I helped replace the catalytic converter on a friend's car, mainly because we had never done such a job and wanted to try it. Our locale has no emission test requirement. The new converter is a fraction of an inch shorter than the OEM converter so the exhaust flanges at the joint are not "kissing". However, I think the circular gaskets in the joints are sufficient to prevent any leak. I'm curious whether other states' emission test rules require more precise work.