On the late 80s 302 efi engines they have an air pump on the passenger side being driven by the serpentine belt. This pump probably creates a lot of drag so is there a way to pull it out? Like putting a smaller belt on or does some aftermarket brand sell a eliminator for it? Or should I just leave it be instead of going through that hassle?
Buy smog pump eliminator for 5.0 its the same part used but mustang owners they have on Ebaysummit jegs etc. then all you have to sure is plug off air pump lines for back side of heads and exhaust.
Should I just cap them off?
You can cap the air tube or plug the back of the heads if you remove the tube
Alright so I can leave the tube in I just have to cap
It off. I'm sure that I'll gain a few HO from eliminating that thing
It dose not rob much power it's just pushing air but yea even know I'm in ca smog is the first to go for me lol
I've heard that smog delete can cause cat cloging. A long pry bar can fix that.
Never heard that but I like the way you think lol
You can bypass the belt without removing the smog pump, just get a shorter belt. The smog pump is almost just a pulley to begin with. I don't get why people buy the eliminators.
What about the tubing going from the exhaust to the pump? There are wires connected to it and I think they are sensors
I eliminated mine, and bought a shorter serp belt. I also have a offroad H pipe w/out cats.
I dont have cats either so i dont have to worry about clogging anything in the system. If i eliminate the pump does the car recognize that it has been taken out?
It's clueless.
I would suggest that you get the plugs that go in the back of the heads as this will allow you to remove the tube assembly and get you more room to work on that side of the car. The wires that you said you are seeing going down to the exhaust could be for the O2 sensors so definitely figure out what those are before you go removing them. Cut the tube going from the O2 pump the the exhaust about 3" to 4" from the exhaust pipe and cap it. If you can weld it shut that is better. I took mine out of the car and had an exhaust shop weld it shut. They would not do it here with it on the car as it qualified as emissions modification which could get them in trouble. I completely respected their position on it and asked if I could pull the X-Pipe out and bring it to them and he was totally cool with that.
Darren
I gutted my pump. Just broke the plastic blades off. All that remains is the housing,pulley and bearing. I had bought a air pump eliminator pulley, but it didn't fit. The pulley was the wrong size. The gutted pump worked perfect as a pump eliminator. As Aerocoupe said, after that, you can plug the back of the heads and eliminate the tube assembly.
I used a Ford racing smog delete pulley kit. Worked great.
I cut the pipe off at the back of the heads and turned the piece that bolted to the head around to plug mine. Then I cut the rest of the pipe off at the collector and welded it off. I removed all items that had to do with the pump. I dont know if it made any difference or not by I also bought the EGR delete plug and installed resistors at all the egr items. Bought a shorter belt and ran with it. The only time you WILL need a smog pump delete pully is if you are going to run a procharger. The shorter rerouted belt gets in the way of some of the procharger stuff.
Remove the Pump, and run a shorter belt.
Cut the tubing going from the pump to the exhaust pipe and pinch it shut with a pair of pliers, then either weld it closed, or use some 2 part high-temp exhaust putty to close off the holes. You can cut the flat ends (that go over the holes in the back of the head) off the air pump tubes, and then flip them around backward and bolt them back down over the holes, to cover the holes in the back of the head. Either that or clean the carbon buildup outta the threads and use the correct size bolt to plug the holes. Leave the EGR position sensor plugged in and in place, and there is no resistor needed for it's delete. That's all you need to know for the entire job. I've did it several times now, since we are not a smog puppies state here.
If i may! The smog pump does not take away a single HP to speak of. It really reduces the emissions that an automotive engine spews out. And i in my view i would not remove it. I have really never removed one and i am just talking about what i do. The smog pump as it is known is one of the most efficient and best emission device ever made as an add on device. THEY WORK EXTREMELY WELL DO NOT REDUCE HP and it is a win win thing. Just saying. I would leave it in and working.
That's if it is still working!!!
They are pretty reliable in my view . Just an option thats all. And when they fail the car does not know the difference running wise. Not like a clogged cat ETC!! They are cheap to fix and they do not bother me one bit. Just my view on the subject.
I no longer have cats so I removed the smog pump and associated hardware. I run one of those eliminator pullies made by FRPP. If you are keeping the cats I would keep the smog pump as without it the cats will fail in short order.
That being said removing the smog pump and Thermactor system frees up quite a bit of room on the passenger side. It's very easy to get at the plug wires and plugs with the Thermactor system gone.
If you are keeping the cats I would keep the smog pump as without it the cats will fail in short order.
Just a thought why would this happen. And why would a cat fail without an air pump????
My understanding is that the cats make their own oxygen through the chemical reaction of the catalyst and the unspent fuel in the exhaust stream. They will also store some oxygen but how much I am not sure. Once the amount of unspent fuel exceeds what the chemical reaction can convert and deplete the stored oxygen they no longer work as well. This is where the additional oxygen from the air pump comes in to keep the cats functioning at these levels. The cats typically fail from excessive heat (they comb melts and blocks flow) or the comb breaks up from the cat being hit from some kind of high center event. Anyhow, that is what I have been told and read.
My cats work fine without an O2 pump and the car passes emissions here with no problems.
Darren
Well there are millions of cars built without air pumps that do not have bad cats. The TC does not have a pump just an example. I was just curious thats all.
That was the main purpose in the air pumps. However, with our cars being fuel injected, they are not as nessesary. It was a must for carbs, even at that cats still killed over because of the inefficiency of carbs especially when the engines were cold.