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Failed Arizona emissions need help!

robinsoncc

Full Member
Joined
Mar 31, 2007
Messages
195
My 1975 Bronco with a 351W failed the equipment check for the air system. It passed with flying colors on the emission testing parts. Fist they failed me on the evap system after I showed them where the system was they passed me. Next he said the air system was plumbed wrong. He tried to tell me that the inlet of the air pump was suppose to be piped to the cats. I was bewildered by this. I asked him if he knew how the catalytic system worked. Does anyone have the pictures of an installed 1975 emission air system?
 

904Bronco

Contributor
Bronco Guru
Joined
Sep 28, 2004
Messages
6,699
Loc.
San Martin, CA
Did he know what year the 351 was, as in a late motor that would have had air to the CATS?

A 75 302 would have had air plumbed to the heads on the side of the head: rear of the drivers side and towards the front on the passenger side.
 

Monster Mike

Sponsor/Vendor
Bronco Guru
Joined
Dec 29, 2010
Messages
1,774
I'm insured through amfam & they listed my 76 with a classic car addendum. No extra cost, no limitations & most importantly emission exempt!
 

thesnake

Bronco Guru
Joined
Jun 20, 2001
Messages
3,503
This is the closest I could find. Actually the only one I have. It may help.

John
 

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Broncobowsher

Total hack
Joined
Jun 4, 2002
Messages
37,076
Did he know what year the 351 was, as in a late motor that would have had air to the CATS?

A 75 302 would have had air plumbed to the heads on the side of the head: rear of the drivers side and towards the front on the passenger side.

It's AZ. They don't care what engine is in there now, it has to have all the emissions that the vehicle came with. It doesn't really make sense. I had a smog legal V8 conversion into a Ranger without any air pump and it was legal because I started with a 4.0 V6 truck, but if I had started with an I4 that had an air pump then I would have needed an air pump regardless of what the tailpipe does or what engine is in there now.

Since it is only a visual fail (tailpipe tested clean) you could get away by faking it. Run some eletrical conduit to the cat and up to the engine compartment and plumb it into the AIR system in a functional looking way and go through another visual which they probably won't even look this time.
 

jckkys

Contributor
Bronco Guru
Joined
Mar 15, 2012
Messages
5,221
You could take it to the ADOT compliance center. In Tucson I went over all the engine swap rules with them about two weeks ago. They are much more knowledgeable than the contractors at the test centers. The thermactor pump draws air through the it's own fan or it's own air cleaner. '75 heads were the first with internal air injection ports. No air went anywhere but to the heads. Az. only cares if the equipment required for a '75 Bronco is there. The compliance center will over rule the test center. The classic vehicle exception as mentioned above is another route.
 

HollywoodC

Sr. Member
Joined
Jan 6, 2009
Messages
498
In Texas I registered mine as an Antique; therefore I'm not required to have a state inspection. Now, by registering it as an antique I'm telling the state I'm using my vehicle for car shows, parades, etc.; not for daily driving street use. But the woman at the DMV just advised me if I were to ever get pulled over while driving it on the road to just let the officer know I'm bringing it to the shop for its "routine maintenance check." Or I'm sure if its a cop who appreciate any classic he/(possibly she) look past it.

All that being said, just classify it as an Antique and do away with inspection requirements FOREVER!

Good luck.
 

76 bronco J

Bronco Guru
Joined
Oct 20, 2005
Messages
1,480
In Texas I registered mine as an Antique; therefore I'm not required to have a state inspection. Now, by registering it as an antique I'm telling the state I'm using my vehicle for car shows, parades, etc.; not for daily driving street use. But the woman at the DMV just advised me if I were to ever get pulled over while driving it on the road to just let the officer know I'm bringing it to the shop for its "routine maintenance check." Or I'm sure if its a cop who appreciate any classic he/(possibly she) look past it.

All that being said, just classify it as an Antique and do away with inspection requirements FOREVER!

Good luck.

>>> funny.... seems on most forums many people fail to see the big picture on this topic of registering their vehicles with restricted plates.....getting a measly little ticket from a police officer is really the least thing people should be worried about.....what everybody should really be concerned with is if a insurance company decides to dig deep after a accident and deny a claim.....there's alot of very expensive vehicles on the road these days and one could potentially be stuck with a massive repair/replacement bill......I just run regular liability insurance and increased the amount they would pay out a few years ago because of all the high dollar vehicles on the road these days..............
 

Pedestrian

Bronco Missionary
Joined
Sep 10, 2008
Messages
2,299
Classic car insurance in place on mine, no driving restrictions, didn't even have to go to Emissions station. Oh yeah, the tags are good for 5 years as well. PM me if you would like more information.
 

LOVNBRONCOS

Sr. Member
Joined
Mar 6, 2012
Messages
462
Loc.
Tucson, Az
My 75 and what I did to hopefully pass emissions next Fri. Made my own emission tubes on new headers, old ones were the same only badly done by PO and ran everything just like before except cleaned it up. Where I might get in trouble is I disconnected the evap
bottle behind the seat cause it leaked but for twenty years prior all they have ever done is look under the hood, check caps, and test, never ask to see the evap. So my fingers are crossed.
 

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LOVNBRONCOS

Sr. Member
Joined
Mar 6, 2012
Messages
462
Loc.
Tucson, Az
Classic car insurance in place on mine, no driving restrictions, didn't even have to go to Emissions station. Oh yeah, the tags are good for 5 years as well. PM me if you would like more information.

Do they limit your milage per year our as mentioned above where you can drive it. Going to be driving mine alot road and off road.
 

73azbronco

Contributor
Bronco Guru
Joined
Nov 11, 2007
Messages
8,778
Thats amazing, you have headers with an air pump.

I didn't get mine classic insured for the restrictions, guess it depends on insurance company but I used Hagerty, couldn't drive it to work, you or wife only driver, had to park it inside, could not take it shopping to mall or movie, etc.

Now, you could do any of those things and only get caught if the ride was damaged or stolen, then they file a fraud claim against you and good luck getting insurance from then on out. Be careful, classic insurance is good, but be sure you follow the rules.
 

Pedestrian

Bronco Missionary
Joined
Sep 10, 2008
Messages
2,299
I tried going with Hagerty as well, but was denied on several points. Lifted, off road tires, daily driver, too many miles per year, non stock modifications. :p

Mine is still daily driven and off roaded frequently, my understanding is no restrictions.
I'm not here to tell anybody what to buy, just what works for me. If you need more info, PM me and I'll pass along my agent's contact info. :)
 
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