emmision tube removal questions

slowhatch82

Founding Member

Jun 11, 2002

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NJ Pine Barrens

May 6, 2005

#1

• May 6, 2005

• #1

Smog pump is long gone as well as the tubes to the cats, but the ones off the back off the heads are still there and piss me off, I can count how many times I banged my hand on that bitch while moving some wires around.

What size bolts to plug those little ****ters?

 

notchback

Founding Member

May 30, 2000

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St Clair Shores MI

May 6, 2005

#2

• May 6, 2005

• #2

sounds like you need some F4ZZ-6E086-A thermactor inserts.

or you can take off that "y" pipe, cut the ends..silicone them up and put them on the opposite sides...that's the ghetto fix to plug the holes

 

86T-Top

Founding Member

Jun 29, 2001

553

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Dublin, PA

May 6, 2005

#3

• May 6, 2005

• #3

Or you can buy 2 bolts from a hardware store. The bolt you need is 5/8" about a 1/2" in length to get the job done.

Mario

 

slowhatch82

Founding Member

Jun 11, 2002

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NJ Pine Barrens

May 6, 2005

#4

• May 6, 2005

• #4

The 5/8 bolt, is it coarse or fine threaded? I plan on takin those suckers off tommorow if its not raining, and finishing up my electric fan install...

 

1

1989MustangLX

New Member

Apr 7, 2005

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Canada

May 6, 2005

#5

• May 6, 2005

• #5

Spark plug thread works. Mine currently has the "ghetto" setup.

 

slowhatch82

Founding Member

Jun 11, 2002

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NJ Pine Barrens

May 6, 2005

#6

• May 6, 2005

• #6

got ya, thanks man! still haven't had luck with those damn headrests yet...im gona give up soon!

 

5spd GT

"the 5.0 owns all"

Founding Member

Aug 7, 2002

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99

Arkansas

May 6, 2005

#7

• May 6, 2005

• #7

. If you are going to delete the smog pump then you will need a threaded insert known as a thermactor plug. They screw into the back and front of your heads. Put silicone on the threads to prevent any exhaust leak when installing them. The thermactor plugs you will use for the front (same as back) will go to make the head holes smaller so the accessories can bolt up like your power steering stud and one of your bigger alternator bolts that go through you alternator bracket. The back thermactor plugs you will use just block off and delete the smog equipment’s previous hookups. You can get them at a Ford Dealership - part # F4ZZ-6E086-A or you can buy some from Summitracing - part # TFS-51400265 and they run anywhere from $3 to $12 dollars from what I have seen. Summit has them cheaper.

 

86T-Top

Founding Member

Jun 29, 2001

553

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17

Dublin, PA

May 7, 2005

#8

• May 7, 2005

• #8

Its a 5/8" - 11 thread bolt or a coarse bolt. Just so you know, you will probably have to clean out the threads in the head first b4 you put the bolts in, as they will be filled with carbon.

Mario

 

88 Fox GT

Active Member

Nov 18, 2002

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Iowa

May 7, 2005

#9

• May 7, 2005

• #9

Well, since my 88 GT is just my daily driver right now, I will be doing it the ghetto way by pinching up the tube. It's a pain in the ass trying to clean out and insert a bolt in the hole back there. But, if you want it to look good, I suggest doing it that way.

 

slowhatch82

Founding Member

Jun 11, 2002

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NJ Pine Barrens

May 7, 2005

#10

• May 7, 2005

• #10

awesome, thats why I love this board, so much info. haha

thanks again

Chris

 

89MustangGX

I have nothing productive to add!

Jul 3, 2001

10,262

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Mill Creek, WA

May 7, 2005

#11

• May 7, 2005

• #11

86T-Top said:

Or you can buy 2 bolts from a hardware store. The bolt you need is 5/8" about a 1/2" in length to get the job done.

Click to expand...

I couldn't find any this short -- no matter where I looked. I ended up getting longer ones and cuting them off to about 1/2". Just an FYI for when you're out looking...

 

slowhatch82

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Jun 11, 2002

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NJ Pine Barrens

May 8, 2005

#12

• May 8, 2005

• #12

yep, went looking yesterday, all I found were 1 1/2 inchers. Now someone said spark plug threads will work...neither of the two threads I found were plug threads. Can you just use the finer thread bolt? The coarse thread was huge.

 

89MustangGX

I have nothing productive to add!

Jul 3, 2001

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Mill Creek, WA

May 8, 2005

#13

• May 8, 2005

• #13

slowhatch82 said:

yep, went looking yesterday, all I found were 1 1/2 inchers. Now someone said spark plug threads will work...neither of the two threads I found were plug threads. Can you just use the finer thread bolt? The coarse thread was huge.

Click to expand...

It is a pretty good sized bolt. I don't like the spark plug idea myself -- nor do I know if they will fit right. If you get one of those 1 1/2" bolts -- just put it in a vise and use a hacksaw to cut it down to about 1/2" and work the cut edge over with a file real quick so it's not burred. It will go right in assuming your carbon isn't too bad. Even if it is gummed up in there, the bolt head will give you something to grab onto -- unlike the inerts that are supposed to be in there. I had them but couldn't get them in, so I went with bolts and it's been great.

 

M

Mark89coupe

Member

Apr 5, 2005

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May 21, 2005

#14

• May 21, 2005

• #14

How much HP for smog removal?

Im going to be installing thumper heads soon and was doing a search to see if its worth it to take out the smog tubes and put in the thermactor plugs in the heads.
How much HP will I gain? Is it worth it? The tight engine bay doesnt bother me much.