Capping AIR tubes

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Mar 14, 2014 | 04:52 PM

L98auto

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Instructor

Joined: Jul 2005

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Capping AIR tubes

I'm thinking about removing the smog/AIR pump to de-clutter my engine bay. I don't want cut off or mangle my AIR tubes going into the exhaust manifolds. Can they be capped in some way with a thread-on cap at their input end?

Mar 14, 2014 | 05:19 PM

JackDidley

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From: Database Error Indiana

Its a standard pipe thread. I got caps for mine at the hardware store.

Mar 14, 2014 | 05:20 PM

nutz4c4

Melting Slicks

Joined: Nov 2005

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From: WAY UPSTATE NY

Quote:

Originally Posted by L98auto

Yes ...NPT 1/2" pipe cap..

Mar 14, 2014 | 05:40 PM

corvetteronw

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From: Kingman AZ

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St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16

I used threaded brass caps, shined them up and painted them with clear spray paint - looks nice.

Mar 14, 2014 | 06:16 PM

L98auto

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Awesome! Thanks guys!

Mar 15, 2014 | 09:32 AM

Team Owner

Joined: Dec 2000

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From: Phila., PA burbs

I had the air tubes on my Hooker long tubes for years with standard pipe caps with no issues. When I installed a new engine a few years ago I went the next step and cut all the air tubes off the headers and welded them shut. It's amazing how much more room there now is to work in that area!

Mar 15, 2014 | 08:17 PM

cohocarl

Burning Brakes

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From: Auburn Michigan

Plain old galvanized on mine.....

Mar 16, 2014 | 02:46 PM

HlhnEast

Safety Car

Joined: Nov 2008

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From: Jacksonville FL

If you dont have EPA inspections just get rid of all of it. It makes it so much easier to work in and around the manifold area. Changing spark plugs is a dream. You can have them welded up or I used a 5/16" tap after cutting the tubes about 1/4" above the manifold. I then threaded a really short 5/16" bolt in each hole.