Sorry to bug you guys but I can't seem to find what exactly does the air pump do. I was looking at the Haynes manual and reading up on it little bits here and there. Why does it pump the air right at the exhaust of the engine? It has something to do with emissions, i don't understand how it works.

Thanks

 

it provides fresh air to the catalitic converter so it don't go poopy.

Toss it and gut the cats.

 

thanks for the clarification hommie

 

Air pumps are overrated, screw the enviornmet! When a piece says "DO NOT REMOVE" it make you want to remove it!

Oh yeah, get a duel alternator pully. Yes, you really need it when you toss the air pump.

 

knightkarr,

You're in California so don't listen to those hippies! You need to have your air pump installed and your cats need to keep their guts if you intend on passing smog!! Those other boneheads don't have to worry about emmissions crap like we do.

 

yeah we also don't have ***** democrats in charge making things difficult and spending all our cash.

 

I removed mine a week ago, where would i find the dual alternator pulley?

 

But we're gonna have THE TERMINATOR as our Governor soon (I hope). I still don't see anyone ever getting emmissions requirements removed from California though

Oh and RX7.0, you can get those pullies from lots of places, like fc3s.org, mazdatrix.com, eBay, etc.

 

Someone please clarify to me why you absolutely NEED a dual alt pulley with the airpump removed? Honestly I always hear why you need one, but never why.

 

Because after you remove the air pump you only have one belt driving the fan and it squeals

 

When does it squeal? I havent had an airpump for a year now, and Ive never had a dual alt pulley.

 

I thought it was because of slipage at higher rpms without the airpump on

 

I think you are both wrong. It is because w/o the airpump, there is only 1 belt driving the waterpump instead of 2. So if you are driving your car for a long time, the belt could start to slip and your car could start to overheat.

Tim

 

nope

 

http://www.mazdatrix.com/b9.htm

 

"If you have removed the air pump, the remaining belt does not wrap very far around the water pump pulley. This lack of belt contact area area can lead to slippage of the water pump at high rpm's/high load conditions"

thank you mazdatrix

 

When I removed mine it squiled like CRAZY, almost all the time. Very annoying.

 

exactly !

"get in the CHOPPA, common !!"

 

Borderline comments...as some people may be offended.

Lets avoid making the 2nd gen section the least bit political please!

 

And the air pump is required to keep the stock cat from overheating, as well as on the S5 N/A cars, it is used to activate the aux ports and VDI.

If you are in CA ( as well as many other modern thinking states) you can not remove the air pump and still pass emissions testing, as well as there is almost no power gain what so ever, just removing it.

 

u need it to open the aux ports!! unless u can find something else to open them!!

chris

 

I dont know how relavent this is to street cars. Ive never heard my belt squeal or slip, and my car has never overheated as far as my temp gauge can tell.

This might be true on high revving race cars that stay above 6K for a long period of time, but I dont believe it is absolutely "needed".

 

Ok guys let me re-state that: We don't have irresponsible Liberals doing nothing to keep the state's budget in check and ruining lives.

Sorry guys I hope non of you all got oFFended hehe.


Santiago