On my 86 F350, 460, 130K miles. Any ideas on removing the air pump. I know a guy who had a 95 Impala SS and he was able to legally remove the airpump. I don't know why, but maybe it was found to be ineffective and he was still able to pass emissions in Houston, both sniff/dyno test and the inspector knew the air pump was exempt in this particular case. I can't take the &^%!!clutter under the hood anymore. I think it would still pass if once a year, I just bolt the pumps up and lay the hoses and lines on top of the engine for inspection. Any ideas?

Thanks
Mark

 

I would talk to a inspector to find out what would be legal for your area.
Your friend may have illegally removed it. Here in NC depending on the year of vehicle you not only have to pass the OBD II test but a visual inspection too.
But thats for 96 and up, earlier ones has to pass a visual inspection to see if all the emission equipment are in place.

 

Ok, I did a google search and found this:

"AIR pump delete (before you tree-huggers start grousing, GM got an exemption from the EPA because the AIR pump wasn't necessary to meet federal smog requirements, so it's legal, plus it also declutters the engine bay) "

from:

http://www.zianet.com/kc5kto/9c1/mods.html

Interesting!

 

Did Ford ask for a exemption also? I understand that GM did but, That EPA exemption may not cover Ford. I would ask a inspector before removing it.

 

Here in Montana, we don't have emmisions tests and we can also register our vehicles permanently. If they ever do require emmisions tests, I'll be grandfathered in and exempt. The only problem I could have is if I ever decide to sell the truck and they do require a visual test, I might have to fork out big $$ to make it sellable, so keep that in mind if you decide to remove the smog stuff.
Otherwise, the performance gains are much better with the smog crap off, and if you keep the engine tuned properly, it's just as effective at keeping the air clean as having an AIR pump.

 

I've got a 85 F250, 4X4, with a FI 302. What's involved in removing the air pump? Do you just take it out and cap the hoses?

 

Follow where your hoses goes and see where it connects to. On my 460 they run to the back of each head so all I will have to do is pull the hoses off and use a threaded pipe cap to screw it into the back of each head.

 

I'm not so sure I'd take any emmisions stuff off of a fuel injected engine. The ECM might throw a fit if you take it off. A carbed engine is one thing, but when a computer needs input from all kinds of different sensors to manage all the tasks it has to perform, one missing component could throw the whole thing off.

 

Yeah, that's kind of what I was wondering too.

 

Mass Air and E40D exempt you from removing the AIR system. The ECM WILL pitch a fit, and unless you know a tuner, you should not do it.

Fuel injected 302's with E4OD must retain the AIR system. ECM issues.
Fuel injected 351's with C6 automatic or manual need tweeking but will run without.
Fuel injected 351's with E4OD must retain the AIR system. ECM issues.
Fuel injected 460's with C6 automatic or manual need tweeking but will run without.
Fuel injected 460's with E4OD must retain the AIR system. ECM issues.

The ECM issues have to do with the Mass Air calculation with respect to exhaust emissions and shift point. This is a real mess when these get out of whack.

So, getting back to a carbureted 460 and C6 automatic or manual transmission. Pull it off or plug it up.

Old Tired Rebel is right. The fast way is to plug the tubes at the back of the head. You can use a solid brass gasket on each head or plug the tubes.

Houston is a big city. There are plenty of places that "forget" what year model the law applies if you treat them right.

 

I bought my truck from a guy in Houston, who just had the truck inspected and it passed. I knew the truck was running like a dog when I bought it and I kept telling the guy the engine needed work. It felt like it was pulling a trailer when I test drove it. I got a good deal on the truck. When I got it home, I check under the hood and there wasn't even a vacuum line going to the advance. I hook up a hose directly to the ported vacuum on the carb, check the timing and it was still way too retarded. I adjust the timing and it runs 100percent better. I don't understand how it passed the inspection with tailpipe sniffer in place. It is hard to work around the inspections these days. VIN number and other info has to be inputted in the computer which i hooked up to some EPA Texas website. Shops don't want to risk it anymore. For F350 trucks, one way is for the inspector to "determine" the overall weight is over something like, 7000lbs and then it is allowed to only do a running test with the sniffer in place, and it won't check for NOx.

But anyway, I can't my truck passed with the timing so out of whack. We all know this testing is politically motivated and is a revenue source. Some states have some strick anti-tampering laws with fines, again, just another revenue generator.

IMO
Mark

 

I just took everything off. I cut all lines and plugged all the vaccuum line stuff. (83 f150 351M Carbureted 4 speed) mine doesnt run emissions, but i know people so its ok! lol. But thank God i got rid of all that ****, it was starting irritate me severely.

 

there is no performance to be gained in taking all that stuff off, as a matter of fact tuning is much harder without......id be glad to take all that stuff off your hands and bolt right nback on to my 85

 

hey if you wanna pay the shipping i've got all that crap laying behind my garage its yours.

on my 86 f150, c6 351 carbed, i got rid of everything. i bought the truck cheap, it was running like crap. i gave it a tune up that helped a little. the truck runs much better now without all the treehuging crap, it picked up 4 mpg. iowa has no emmisons test, so i got rid of everything.

 

so jimbo id be interested how bout a list of parts or some picture.......let me know how much to ship to 19053 get in touch at jcunnington2@comcast.net would like to get truck back to stock and go from there