Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Ford Inline Six, 200, 250, 4.9L / 300
Sign in using an external account
Register Forgot Password?


How do I plug the smog ports from the air tube in the head

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-16-2012, 08:39 AM
96999153E4OD 96999153E4OD is offline
New User
 
Join Date: Dec 2011
Posts: 6
96999153E4OD is starting off with a positive reputation.
How do I plug the smog ports from the air tube in the head

Hello all,

I've got a 1996 F150 with the 4.9L six, and the air/thermactor tube that goes into the head is making a loud noise, and I want to get rid of it. I'm in Arkansas, so no emissions testing, and the cat was removed by the previous owner. I was wondering what size bolts I need to plug the ports in the head. Will straight thread bolts work, or do I need taper threaded fittings? Oh, and if anyone has done this before, please chime in on how you did it, and how it worked out. Some pictures would be great.

Thank you very much in advance.
Reply With Quote
  #2  
Old 01-17-2012, 09:46 AM
Prof2113's Avatar
Prof2113 Prof2113 is offline
Senior User
 
Join Date: Jan 2011
Posts: 102
Prof2113 is starting off with a positive reputation.
I have the same truck and engine. I have emissions testing here, so not doing this for another 9 years, but this is what I would do.

1. Find fittings in brass or steel that are the same thread if possible. Haven't looked, so not sure if you could find them at the local hardware store.

2. Remove the assembly and cut the smaller tubes off at the main tube. Then crimp and fold the tubes over and then weld or braise them shut. Then screw them back in the head.

Since I have replaced my tube already, a few tips.....

You really want to use a line wrench for this job. The fittings are thin and will flex when loosening. If you use a line wrench, it helps combat that problem as well as rounding off the fittings. I sprayed copious amounts of wd40 on the fittings before removing and let them set over night. They came out without a problem.

If you are going with option 2 and you destroy a fitting, they are available as a set from pciinc.com at a reasonable price. I got the tube and all fittings for about $100. I think the fittings as a set are about $40.

Good luck and let me know how it goes.
Reply With Quote
  #3  
Old 08-14-2014, 05:07 PM
chaseford chaseford is offline
New User
 
Join Date: Aug 2014
Posts: 8
chaseford is starting off with a positive reputation.
Hello good people anyone know where i can find a smog tube for 1995 f250 4.9 i can be reached at chaserock606@gmail.com or 215 457-4377
Reply With Quote
  #4  
Old 08-15-2014, 10:20 PM
Prof2113's Avatar
Prof2113 Prof2113 is offline
Senior User
 
Join Date: Jan 2011
Posts: 102
Prof2113 is starting off with a positive reputation.
I got the tube and fittings a couple years back from pciinc for about $100. I looked them up online. Be sure and ask if they have a local dealer.
I also have ordered one from Summit. Not sure if they still have them. Be sure and get new fittings, though.

Good luck!
Reply With Quote
  #5  
Old 08-15-2014, 11:16 PM
RTSinDallas RTSinDallas is offline
Freshman User
 
Join Date: Sep 2010
Location: Carrollton, TX
Posts: 39
RTSinDallas is starting off with a positive reputation.
2. Remove the assembly and cut the smaller tubes off at the main tube. Then crimp and fold the tubes over and then weld or braise them shut. Then screw them back in the head.

This is what I did, weld them shut, it worked great. I ground the weld flat and they look fine. Brazing/sweating would work as well, maybe even JB weld or some high temp goop of choice.
Reply With Quote
  #6  
Old 08-17-2014, 01:27 AM
raven3 raven3 is offline
Senior User
 
Join Date: Dec 2013
Location: Bakersfield,CA
Posts: 332
raven3 is starting off with a positive reputation.
Soak the fittings with " liquid wrench". Engineering studies have proved that this product works better than all the others.
Alternate is 50% acetone and 50% automatic transmission fluid.

Remove the tube fittings and manifold.

I used 3/8"-20 x 1/2" long steel black oxide set screws with allen sockets with the high temperature permatex thread sealer.
Reply With Quote
  #7  
Old 08-17-2014, 12:21 PM
chaseford chaseford is offline
New User
 
Join Date: Aug 2014
Posts: 8
chaseford is starting off with a positive reputation.
Thankyou for the feed back on my post

Hello good people i'm still working on this 95 f250 i thought i had a choice
with smog air tube finding tube or closing ports but friend wants me keep on lookin for tube .So if anyone knows where i can get this flipping tube i still can use the info. Thanks .
Reply With Quote
  #8  
Old 08-26-2014, 08:58 AM
Brigart's Avatar
Brigart Brigart is offline
Senior User
 
Join Date: Dec 2009
Posts: 184
Brigart is starting off with a positive reputation.
forget exactly what size they were, but i took one removed tube nut down to fastenall and bought 6 bolts. Installed with loc tite. Doesnt look the best but it worked.
__________________
The White whale. 1974 extended cab F250. With a 1988 EFI 4.9l 300. Mazda M502-R2 manual trans. 3.55 gears.
Reply With Quote
  #9  
Old 09-07-2014, 08:44 PM
chaseford chaseford is offline
New User
 
Join Date: Aug 2014
Posts: 8
chaseford is starting off with a positive reputation.
How the vaccums go

Hello good folks , My question does anyone have a clear diagram of vaccum hoses all from evap on fender to valve cover . This 1995 f250 4.9 will soon be on road again . I want download pics , videos to the forum can some help with that too . Thank's again for all the replies
Carlhttp://images.ford-trucks.com/forums/images/smilies2/cool.gif
Reply With Quote
  #10  
Old 09-12-2014, 09:51 PM
curtisbutlerjr curtisbutlerjr is offline
Junior User
 
Join Date: Jun 2014
Posts: 55
curtisbutlerjr is starting off with a positive reputation.
try rockauto.com are talking about air injection tube , from air pump to exshast pipe forward of cat? if so just got one last week made by airtex
Reply With Quote
Old 09-12-2014, 09:51 PM
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Clutch help in NW Ar zgraham 1973 - 1979 F-100 & Larger F-Series Trucks 0 02-19-2014 09:37 AM
SMOG TUBE HEADS ? PLUG THEM ? MIKES 68 F100 FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) 5 06-24-2011 08:44 AM
April general discussion thread. lwfox002 Arkansas Chapter 27 04-20-2008 12:24 PM
Making Biodiesel AndysFords Bio-diesel, Propane & Alternative Diesel Engine Fuels 0 04-07-2006 01:30 PM
302 EFI to Carb Jimmy Dean Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W) 12 03-21-2004 10:11 AM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Ford Inline Six, 200, 250, 4.9L / 300

Tags
49, 49l, 66, air, aluminum, f150, ford, head, heads, passing, plug, ports, size, smog, tube

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »


All times are GMT -5. The time now is 03:56 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup