smog pump removal/
Thread Starter
Racer
Joined: Oct 2010
Posts: 395
Likes: 0
From: winterville NC
smog pump removal/
hey guys I am trying to remove my smog pump and i noticed several lines going to it and to the carb 1 that i want to ask about is the 1 going to the exhaust heat valve and the thermastat housing and another 1 going to the smog pump the the same housing.........can i remove the 1 going to the smog pump and leave the other 1 on going to the exhaust heat valve.....
Le Mans Master
Joined: Sep 2002
Posts: 5,235
Likes: 898
From: Myrtle Beach SC
Use this schematic and tell us what components you are describing. Not sure what year but looks like a mid C3 year. I suspect your referring to the diverter hose that connects to the lower carb port and the EFE TVS (yellow color coded hoses).
Willcox L82 emission hose schematic
You realize the smog pump...pumps Oxygen into the combustion to "complete" the combustion process.
Willcox L82 emission hose schematic
You realize the smog pump...pumps Oxygen into the combustion to "complete" the combustion process.
Last edited by hunt4cleanair; Nov 2, 2011 at 05:32 PM.
Melting Slicks
Joined: Jun 2009
Posts: 2,709
Likes: 3
From: Savannah GA
Car in avatar photo appears to be a 1977 going by the flags on the nose. My fave year! Yes you can disconnect the smog pump line and plug the vacuum source without impacting the heat riser as long as the riser hose stays continuous... if it tees into the yellow line eliminate the tee, etc. I completely simplified the vacuum driven systems on my 77 including the heat riser and the engine compartment will look much neater when it all goes back in.
Melting Slicks
Joined: Mar 2009
Posts: 3,126
Likes: 15
Heat riser is designed to fail in "safe" position. Meaning, without vac. it will be open. You can delete the hoses to the AIR pump but leave the riser intact if you wish. Just remove the "T" fitting and take vac. source straight to thermostatic switch and then to riser vac. canister. Plug holes in exhaust manifolds with one of these.
Do not use tapered pipe thread plugs. These have line threads and a flare sealing surface on the end. mike...
Do not use tapered pipe thread plugs. These have line threads and a flare sealing surface on the end. mike...
