Air pump do i need it?
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Junior Member
Joined: Apr 2004
Posts: 5
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From: Australia
Air pump do i need it?
I have been told to remove the air pump so there would be less stress on the engin and all it dose is something with the polution **** ? should i remove it or kep it on
Old [Sch|F]ool
Joined: May 2001
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From: Cleveland, Ohio, USA
If your car has a thermal reactor: ('80 and earlier) Yes you need it, else the TR could overheat and collapse internally. The air pump provides cooling air around the unit in addition to injecting air into the exhaust.
If you car has a catalytic converter: Yes you need it, else the converter can melt down. I know someone who threw a cat on his car (an '87 or '88) without the air pump, and it *did* pass emissions, but the converter lasted about five miles before it plugged up. Good thing he headed straight for the test center when he left the exhaust shop!
If your car has a stock type clutch fan: It's a good idea, since most of the water pump drive comes from the air pump belt. The alternator belt only glances off of the water pump pulley, and on the non-tension side at that.
If you have an '89-91 non turbo model: It's a good idea, since the air pump supplies the air pressure to open the aux ports.
If you car has a catalytic converter: Yes you need it, else the converter can melt down. I know someone who threw a cat on his car (an '87 or '88) without the air pump, and it *did* pass emissions, but the converter lasted about five miles before it plugged up. Good thing he headed straight for the test center when he left the exhaust shop!
If your car has a stock type clutch fan: It's a good idea, since most of the water pump drive comes from the air pump belt. The alternator belt only glances off of the water pump pulley, and on the non-tension side at that.
If you have an '89-91 non turbo model: It's a good idea, since the air pump supplies the air pressure to open the aux ports.
Thread Starter
Junior Member
Joined: Apr 2004
Posts: 5
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From: Australia
well it is a 13b out of the rx4 and i removed it and it seems to be going much better i did some more resurch on it and it says it sends air to the cat so it can work in the low revs from 1-2.5k after that the it is not doing a thing
Thread Starter
Junior Member
Joined: Apr 2004
Posts: 5
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From: Australia
The air pump is only used for smog purposes, and will not hurt your car if it is disabled or removed. Some claim a lumpy or hunting idle when it's disconnected, but may others have no problem. I have been told that removal of the air pump will result in the early demise of your catalytic converter. I highly doubt that though, as above 3000RPM the air pump is not being used.
that is from http://www.scuderiaciriani.com/rx7/air_pump.html
that is from http://www.scuderiaciriani.com/rx7/air_pump.html
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