Alternate Smog Delete Procedure

[302StangGirl]

Okay... figured out another way to turn that pump into a free spinning pulley.
The thought behind this method is that the fins inside the pump create friction, meaning it takes more effort for your engine to spin the pulley. Remove the fins and there is no friction.

1. Remove your serpentine.
2. Remove the three bolts from the front of the smog pump pulley and remove the pulley.
3. Loosen the hose clamp at the back of the pump and remove the hose.
4. Remove the two bolts holding in the pump and pull it out. (You'll need to wiggle it.)
5. Turn the pump over. There should be several bolts holding the back of the pump on. Remove the bolts. You do NOT need to remove the screw in the center.
6. This is the fun part. Using a mallet and chisel (or flat-head screwdriver) pry open the back of the pump. This WILL take alot of force and probably some time and patience if it was anything like mine. Keep at it, and you'll crack it open. I promise.
7. Once the back is removed, look inside the pump. There will be a few plastic fins and some metal thing-a-ma-jigs holding them in. Put that mallet and chisel to use again and knock all of that out of there. I used needle-nose pliers to break the fins into smaller pieces for easier removal.
8. Once the internals of the pump are removed, replace the back and re-install the pump and pulley.

Now, because there's no pump, you can crimp off the tube that would go to it from your exhaust and then use a hose clamp to clamp off the hose in your engine bay.

I did this mod three days ago and my check engine light has not come on. You can feel a power increase for sure. I DID install a new O/R H-pipe at the same time though, so I'm not sure how much of that is actually attributed to the smog delete. I know that it got rid of the squeaky noise that my smog pump had started making though. :hammer:

I didn't get any pictures during the removal or anything, but I'll take some pictures of the crimped hoses and reinstalled pump later. If anyone's interested in doing this mod, message me if you have any problems or want a more detailed outline. :]

 

[95-stang]

A lot cheaper than buying a smog pump delete pulley too.

 

[Steven]

why didnt you just get a shorter belt and bypass any kind of pulley all together :hammer:

http://www.allfordmustangs.com//Detailed/660.shtml

 

[302StangGirl]

Because bypassing it puts pressure on your alternator. I've heard too many stories about burned up alternators to try that.

 

[Steven]

Because bypassing it puts pressure on your alternator. I've heard too many stories about burned up alternators to try that.

lol the alternator is in no more danger of being burned up like that then when its in stock position. the belt doesn't change its orientation or contact with the alternator does it? No, not all, so how does it put any more pressure on it then in stock form. If you run an extremely, extremely, tight belt, no doubt will you burn something up, but the though a bypass setup would burn an alternator up is ludicrous.

 

[Jrgunn5150]

It's still one more alternative, awesome work :thumb:

 

[Steven]

It's still one more alternative, awesome work :thumb:

yep, its a good idea, nonetheless, i just think you could save some weight and one less pulley.

 

[Javi]

Nice work K! :thumb:

 

[Paul]

I don't think gutting the internals of a smog pump will provide any significant power gains. Maybe 1 horsepower. MAYBE.

Besides - smog pumps lower your pollution!

 

[302StangGirl]

Okay, unless you know someone that's done that mod and is running smoothly, I will continue to disagree. Look at the way the belt runs over the alternator now and then imagine the way it would run without the smog... It adds pressure in a place that it wasn't made to. I've seen it go wrong enough times to know that it does. And none of the three people were running tight belts.

And if you take your smog out and try to turn that pulley with the fins in place, you'll realize how much of a gain there is. Without the fins it's a free-spinning pulley.

 

[Javi]

 

[Steven]

I run the 95 the delete way. No problems here

 

[95 svt cobra]

i havent heard of alternators burning up at all really, i know alot of people run their fox's and sn95s with shorter belts without running ac or smog pumps and they seem to be going fine. Either way though, cool about at least making the pulley spin free, get rid of some of that weight and get yerself the delete kit

 

[Stangbangin]

Because bypassing it puts pressure on your alternator. I've heard too many stories about burned up alternators to try that.

Don't believe everything you hear. I don't think deleteing or running a short belt on the smog pump is worth too much hp. I mean its something but not enough to warrant doing it. I like the fact of running a short belt since it frees up space in the engine compartments. The belt isn't being pulled any different when run short. If people claim to have burned up an alternator because of this it was probably due to something else just happened after they ran a short belt so they decided to run it like that. But otherwise good idea gutting the smog pump.

 

[thorco3]

Forget all that and just delete the smog all together. I ran a shorter belt and rerouted the belt a bit, no pump, no delete pulley, nothing. Plug the x pipe and the back of the heads and you're good to go.

I ran that way for a good while with no problems. Now I'm back to a delete pulley though with the vortech installed.

 

[BackinBlack]

All of you who just deleted the pump, do you have underdrives? Is the diagram shown earlier with stock pullies or U/Ds?

 

[mich_666]

I have underdrive pullies and i just did the full out delete, no pump, no lines, just a shorter belt. has worked fine and never had a problem whatsoever. i did it to make access to my plugs easier and just the overall cleaner look... cause, lets be serious here, its not gonna release much more of anything out of the motor except some real ozone killing exaust.

 

[bens95svt]

If you dont wanna do it then dont..As the topic says its an alternate way..Good job Stanggirl but you know everyones gotta be a critic ..

 

[BackinBlack]

I have underdrive pullies and i just did the full out delete, no pump, no lines, just a shorter belt. has worked fine and never had a problem whatsoever. i did it to make access to my plugs easier and just the overall cleaner look... cause, lets be serious here, its not gonna release much more of anything out of the motor except some real ozone killing exaust.

How long is your belt?

 

[Javi]

I have underdrive pullies and i just did the full out delete, no pump, no lines, just a shorter belt. has worked fine and never had a problem whatsoever. i did it to make access to my plugs easier and just the overall cleaner look... cause, lets be serious here, its not gonna release much more of anything out of the motor except some real ozone killing exaust.

can you post pics?