question about capping off smog pump on headers

BlackMark8Li

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I went tou the local hardware store and they had nothing. where can I get something to cap off the pump? what size is the thread and cap? thanks.
 
BlackMark8Li said:
I went tou the local hardware store and they had nothing. where can I get something to cap off the pump? what size is the thread and cap? thanks.




The mark does'nt have a smog pump. What kind of car are you working on?
 
94m5 said:
The mark does'nt have a smog pump. What kind of car are you working on?

1996-1998 have smog pumps on the headers. and if they're not smog pumps, which I am pretty sure they are called that someone should still know what I am talking about. the secondary air induction,anyways I want to delete it and I am pretty sure geno or anyone who has headers should know how to cap em off
 
ONEBADMK8 said:
Its the secondary thermactor pump wich injects air into the exhaust for the first 30 seconds of operation.

ok thanks for the clarification. now with that out the way how or what do I use to cap them off? what size is the cap? local hardware stores don't carry the size, I brought the header down there.
 
Just have a shop weld something over it. If you have "Plug-In" emissions it will find the pump being disconnected.
 
I just used the nut that holds the tube onto the manifold and welded a washer over the end - therefore making a cap. I did the same thing for the EGR.
 
I read somewhere that a 1/2" female pipe cap WATTS A-819 from your local HomeDepot may do the trick.
 
I used the 1/2" female caps from Home Depot on my front of my midlengths, and a male plug in the back of the drivers side (which I then welded and ground off for steering shaft clearance. There's a couple pictures where you can make them out on my cardomain web site....

http://www.cardomain.com/id/57tbird

Go to page 2 and look on the bottom of the page. And yes... It is a 57 Tbird, but I'm using the Mark VIII engine and transmission.

Mike McNamee
 

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