Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

I'm confused

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Old Jul 23, 2005 | 04:54 PM
  #1  
hobbyhorse's Avatar
hobbyhorse
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Joined: Jul 2005
Posts: 35
Default I'm confused

what is the pipes going out of my manifold, (circled in red) they seem to be blocked. Is there something missing

And, should the breather cap be on that side? because i've seen other pics with the breather cap on the other side (where the arrow is pointing at)

[IMG]local://upfiles/19596/4AD049BD07B44144A6FE249E249E0C43.jpg[/IMG]

[IMG]local://upfiles/19596/F2586514FC6B465EBC145092D2847FD3.jpg[/IMG]
Old Jul 23, 2005 | 06:01 PM
  #2  
Cogtx's Avatar
Cogtx
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Joined: Jul 2005
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From: Sugar Land, Texas
Default RE: I'm confused

Hey Hobbyhorse...here is my unprofessional newbie opinion (after looking in a 1967 Ford shop manual)...looks like your engine had a thermactor exhaust emission system vs. the IMCO type emission system. Apparently, there was more equipment on those thermactor to include some sort of air cleaner, air supply pump, backfire suppressor value, etc. You might google the thermactor on the web or check into a shop manual for more info. Sorry I can't be much of help, but I do what I can with what I got....good luck!!!!
Old Jul 24, 2005 | 12:42 AM
  #3  
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Scott H.
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Default RE: I'm confused


ORIGINAL: Cogtx

Hey Hobbyhorse...here is my unprofessional newbie opinion (after looking in a 1967 Ford shop manual)...looks like your engine had a thermactor exhaust emission system vs. the IMCO type emission system. Apparently, there was more equipment on those thermactor to include some sort of air cleaner, air supply pump, backfire suppressor value, etc. You might google the thermactor on the web or check into a shop manual for more info. Sorry I can't be much of help, but I do what I can with what I got....good luck!!!!
Actually that is a very good description! Yep, he is right. Follow his advice.

Old Jul 24, 2005 | 01:42 PM
  #4  
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hobbyhorse
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Default RE: I'm confused

Thanks guys, you really helped me alot

Should i take it off or should i try to fix it somehow
What do you think?

[IMG]local://upfiles/19596/34ACD52EFE5844489B259D9EC13AEC51.jpg[/IMG]
Old Jul 24, 2005 | 03:26 PM
  #5  
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Scott H.
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Default Sticking with the 6 or going V8?

If you are sticking with the six cylinder, I would first look into what is required by law to be on the car. You are missing most of the system, so replacing the missing & damaged components may cost a couple of hundred dollars.

The system basically pumps air into the exhaust manifold at idle. It is designed to reduce HC (Hydro Carbons which is raw unburned gas) at the tail pipe. The pump only takes a couple of HP to run, so it is really insignificant in the amount of drag. What you will notice with the whole system in proper working order, is that behind the car at idle you will get a much less "gassy" smell. This in turn helps with the air we breath.

In my experience it does not make a noticeable difference in performance. It neither helps nor hurts the fuel economy. So in reality all it does is clean up the tail pipe emissions, which is good for mother earth. And the folks in the car behind you.

Do some research like Cogtx suggested and learn what the system does, and how it affects the engine. Also find out what your state requires in the way of emissions related equipment to be on your vehicle. Most states require whatever the mfg put on the vehicle to stay on the vehicle and be in proper working order. Your state laws may vary.

Also check into what is required by law in case you decide to do the V8 swap.

Good luck!
Old Jul 24, 2005 | 04:48 PM
  #6  
Derf00's Avatar
Derf00
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Joined: Feb 2005
Posts: 13,189
From: AZ
Default RE: Sticking with the 6 or going V8?


ORIGINAL: Scott H.

If you are sticking with the six cylinder, I would first look into what is required by law to be on the car. You are missing most of the system, so replacing the missing & damaged components may cost a couple of hundred dollars.

The system basically pumps air into the exhaust manifold at idle. It is designed to reduce HC (Hydro Carbons which is raw unburned gas) at the tail pipe. The pump only takes a couple of HP to run, so it is really insignificant in the amount of drag. What you will notice with the whole system in proper working order, is that behind the car at idle you will get a much less "gassy" smell. This in turn helps with the air we breath.

In my experience it does not make a noticeable difference in performance. It neither helps nor hurts the fuel economy. So in reality all it does is clean up the tail pipe emissions, which is good for mother earth. And the folks in the car behind you.

Do some research like Cogtx suggested and learn what the system does, and how it affects the engine. Also find out what your state requires in the way of emissions related equipment to be on your vehicle. Most states require whatever the mfg put on the vehicle to stay on the vehicle and be in proper working order. Your state laws may vary.

Also check into what is required by law in case you decide to do the V8 swap.

Good luck!
If it's pre 72 or 77 I think, it won't matter what state law says for smog as I believe most states consider anything prior to those years exempt...as in, not required to smog. It used to be 67 or older then they bumped it up about two years ago. Double check.
Old Jul 24, 2005 | 10:36 PM
  #7  
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Scott H.
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Default RE: Sticking with the 6 or going V8?

Derf00,

Be very careful with that! [sm=nono.gif]

In California, for instance, it is not required to have your emissions tested bi-yearly for cars older than 1975, However it is required to have everything that came from the factory on and fully functional. You can be cited for bypassing/removing emissions related components. By law, all a police officer needs is reasonable cause to check.

California is not the only state (I'd be very suprised if any state laws say it's OK to remove or disable your emissions equipment). So my suggestion is to find out what the laws are in your area. There is absolutely no reason not to comply with the your state requirements.
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