Racing beat muffler and cat replacement pipe question
Joined: Jun 2003
Posts: 847
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From: Northern New Jersey
Originally Posted by rhinor61
From my own experience, if you pull the cat. converter and put the block plate that is the outlet port for the air to the cat. converter and you keep the air pump belt on. You will damage the ACV, guaranteed. There is no place for the air pressure made by the air pump but blowing out the valve and sending it up to the air cleaner.
Strongly suggest removing the air pump belt , but if you are running a clutch fan, you could get belt slippage.
The Air Control Valve is very expensive to replace, and if the converter is removed from the car, there is no reason to have it installed. It comes off with 2 bolts and 1 nut, but will need a cover plate in its place.
John
Strongly suggest removing the air pump belt , but if you are running a clutch fan, you could get belt slippage.
The Air Control Valve is very expensive to replace, and if the converter is removed from the car, there is no reason to have it installed. It comes off with 2 bolts and 1 nut, but will need a cover plate in its place.
John
hey, yeah... ugh... the previous owner of my car put on a header and a straight pipe, but he left all the little hoses and stuff from the air pump on, as well as the little hose that went to the actuators for the 5th and 6th ports.... I have a 84 gsl-se just to let u guys know. i still have the belt on the air pump since i have a clutch fan. aside from maybe losing a little bit of horsepower, am i going to damage my air control valve this way? I figured it was just pumping air out into nothing, but there shouldn't be any more pressure or anything... so basically, am i hurting anything?
Rotary Enthusiast
Joined: Mar 2002
Posts: 822
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From: California
Originally Posted by Rusty Shackleford
i thought that small plate went somewhere by the converter??that means i gotta go oreder a ac block plate even though they told me i didnt need one
You do not have to remove the Air Control Valve (ACV) but because you are blocking off the chamber the ACV send air to, under the right conditions you will blow out the ACV if the air pump is still hooked up.
Removing the ACV and the air pump is not going to be used why have it on the car.
John
Rotary Enthusiast
Joined: Mar 2002
Posts: 822
Likes: 0
From: California
Ok,
Air Control Valve (ACV) - Directs air to one of three locations:
Exhaust port, catalyst (converter), or back to the air cleaner.
It consists of 3 valves: Air Relief Valve, Air switching valve and No.1 AAV
Air Pump:
Supplies secondary air to the ACV driven by a belt.
John
Air Control Valve (ACV) - Directs air to one of three locations:
Exhaust port, catalyst (converter), or back to the air cleaner.
It consists of 3 valves: Air Relief Valve, Air switching valve and No.1 AAV
Air Pump:
Supplies secondary air to the ACV driven by a belt.
John
Thread Starter
85 Mazda Rx7 GS
Joined: Jul 2004
Posts: 45
Likes: 0
From: Benicia
Originally Posted by kiker14
hey, yeah... ugh... the previous owner of my car put on a header and a straight pipe, but he left all the little hoses and stuff from the air pump on, as well as the little hose that went to the actuators for the 5th and 6th ports.... I have a 84 gsl-se just to let u guys know. i still have the belt on the air pump since i have a clutch fan. aside from maybe losing a little bit of horsepower, am i going to damage my air control valve this way? I figured it was just pumping air out into nothing, but there shouldn't be any more pressure or anything... so basically, am i hurting anything?
Yea, what would happen if I just disconnect the hose to the cats and left it just hanging there. Wouldn't it just pump air out like normally just not into the cats like normal. I mean would it damage the ACV or would it just act normally.
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CaptainKRM
2nd Generation Specific (1986-1992)
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Aug 26, 2015 09:52 PM
