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10-08-2009, 07:26 PM
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#1 |
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Registered User
Join Date: Nov 2008
Location: Columbia SC
Posts: 231
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another problem
 Problems one after another I never put exhaust on because the paint guy (that did not finish the job on my truck) wanted me to leave them off. So I never heard the truck run except without pipes so that is why I have this question today. I replaced my old exhaust manifold with new after market one and they have two holes in the middle (see picture) that I did not notice but they go all the way though. I had new exhaust put on today and they are leaking greatly. They do not go into my head so I need to plug them but I am not sure with what. Is this normal or what? I was wondering if they sell plugs for this type of problem or if a certain bolt is necessary with using lock tight would do. One thing after another I wonder if I will ever get this truck on the road! |
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10-08-2009, 07:45 PM
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#2 |
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What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: another problem
Those just look like smog port holes.
I plug em with flush pipe plugs that have an allen head. I've never had to use locktite, just some anti seize and all was good.
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Chris 1968 K20 Suburban 1972 K10 LWB PU |
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10-08-2009, 07:52 PM
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#3 |
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Car Knocker
Join Date: May 2001
Location: jefferson,arkansas
Posts: 664
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Re: another problem
x2
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68 c-10,91 sportside bed,350 .030 over,4 bolt,10-1 comp,2.05 intake/1.94 exhaust,1.6 Harland Sharp roller rockers,edelbrock rpm cam and intake w/750 carb, 700r4, 3.73 gears,Jacabbs Electronic Igntion w/Accel HEI distributer and super coil. ZR-1 roll pan, filled tailights. Blazer tank. Hidden hitch. 2 1/2" Flowmaster 40's. Parts bought but not installed>> ford 9" posi with disc. CCP front and rear lowering kit 4/5. Cab corners,foor boards,rockers, cab braces, Phatom grill, Painless wiring kit. |
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10-08-2009, 07:54 PM
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#4 |
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huh?
 
Join Date: May 2000
Location: Washington, Illinois
Posts: 5,690
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Re: another problem
Yep, agree completely. They're smog tube holes. Just run pipe plugs with anti-seize and you'll be good to go.
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Someday when I'm lonely, Wishing you weren't so far away, Then I will remember Things we said today. RIP El Jay |
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10-08-2009, 07:58 PM
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#5 |
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Registered User
Join Date: Jan 2006
Location: Take Off
Posts: 1,908
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Re: another problem
I would run pipe plugs, look nicer than other types of plugs and will fit flush.
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10-09-2009, 08:59 AM
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#6 |
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Registered User
Join Date: Nov 2008
Location: Columbia SC
Posts: 231
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Re: another problem
do you know what size? Where is the best place to look for these?
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10-09-2009, 09:10 AM
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#7 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: another problem
hardeware store// use ruler measure for size
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71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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10-09-2009, 10:23 AM
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#8 |
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The Older Generation
  
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,818
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Re: another problem
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I think they take a 3/8" pipe plug. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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10-09-2009, 06:26 PM
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#9 |
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Registered User
Join Date: Nov 2008
Location: Columbia SC
Posts: 231
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Re: another problem
I got the plugs at my country Ace Hardware store and they are all plugged. I found out the holes are for the factory air emissions tubes. You would think they would plug them before the mail them out. Anyway I have it the manifold plugged and my new exhaust sound pretty good.
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