air pump quarry

Conman · 07-23-2002, 08:32 PM

well here is the situation:
I have an off-road H pipe and had problems with the air tube that connects to it so that is now blocked off to fix the hole in the h-pipe. As far as I know that is really only needed to help the cats from clogging up which I know longer have

now what should I do with the other end that connects to the air pump. I makes a strange noise that I don't like if I leave it open. Will it do any harm if I block it off? Should I just get a shorter belt and bypass the air pump all together? What else would I have to do to the egr or passages through the heads if I got rid of the whole system?

Thanks guys

Brcuda · 07-23-2002, 08:43 PM

Buy an Air pump eleminator, that way you can keep the belt you have and it installs in no time at all.

Mach 1 · 07-23-2002, 09:15 PM

the EGR is a separate system. Removing the air pump and all the hoses, vacuum lines, etc...is the way to go. Just put plugs in the back of the heads, and eithier run a short belt or get the air pump eliminator idler pulley. i have the motorsport one, its a nice piece.

Bad89stang · 07-24-2002, 01:59 AM

What he said

Quote:

Originally posted by Mach 1
the EGR is a separate system. Removing the air pump and all the hoses, vacuum lines, etc...is the way to go. Just put plugs in the back of the heads, and eithier run a short belt or get the air pump eliminator idler pulley. i have the motorsport one, its a nice piece.

Conman · 07-24-2002, 06:21 AM

so just out of curiosity, what do those lines do that run into the heads?

Mach 1 · 07-24-2002, 02:42 PM

Air is pumped from the air pump into the heads through the lines to reduce pollution.

Coupe5oh · 07-24-2002, 03:26 PM

I removed the pump and got a shorter belt, also my heads arent plugged yet, so i guess i have a vaccumm leak there, dont think its much of a problem at the moment.

Mach 1 · 07-24-2002, 05:45 PM

Quote:

Originally posted by Coupe5oh
my heads arent plugged yet, so i guess i have a vaccumm leak there, dont think its much of a problem at the moment.

you should have a loud exhaust leak with the heads unplugged? Sounds like a header leak...

MTU 50 · 07-24-2002, 06:30 PM

How do you plug the heads? Are they threaded? If so, what size?

I have had the air pump bypassed for almost a year now, and I want to get rid of the rest of the lines on the passenger side, but I know I need to plug the head after I do it.

I've heard the plug it advice before a half dozen times, but no one ever knows what size the hole is.

Not ripping on anybody, but I like to be precise with things.

Mach 1 · 07-24-2002, 08:06 PM

yes, they are threaded. I dont know the exact size, but when you remove whats in there now, you can see for yourself what size it is.

HiFlow5 0 · 07-24-2002, 08:22 PM

The plugs for the back of the heads are a 5/8" thread about 1" long. I just removed my Air pump to clean up the mess under the hood. Looks a lot better now!

Coupe5oh · 07-24-2002, 10:45 PM

Quote:

Originally posted by Mach 1

you should have a loud exhaust leak with the heads unplugged? Sounds like a header leak...

Not really, i can't hear anything out ofthe ordinary, my exhaust is loud under the car, since i have turndowns, but under the hood nothing sounds like an exhaust leak, im still going to plug em soon as i have time, and figure out where to get them.

Mach 1 · 07-25-2002, 05:05 AM

Quote:

Originally posted by Coupe5oh

Not really, i can't hear anything out ofthe ordinary, my exhaust is loud under the car, since i have turndowns, but under the hood nothing sounds like an exhaust leak, im still going to plug em soon as i have time, and figure out where to get them.

Interesting. I had a plug fall out of one of my heads, and I thought I had a header leak. Even went as far as to change the header gasket before I figured out one of my head plugs fell out. But that was with edelbrock heads. Maybe the leaking sound is louder with different type heads?

sn95gt19 · 07-25-2002, 09:06 AM

yeah i agree with you, a buddy of mine had his plug fall out, and it sounded like the darn header broke, the leak was so bad. i took my air pump apart and hollowed the insides out with an air chisel, there are little stones in there that act like a seal, that make it pump. i just broke those apart. now its just like an idler pulley. it would probably be more practicle to just buy the eliminator though.

07-23-2002, 08:32 PM	#1
Conman Registered Member Join Date: Apr 2002 Location: Kingston, Ontario Posts: 351	air pump quarry well here is the situation: I have an off-road H pipe and had problems with the air tube that connects to it so that is now blocked off to fix the hole in the h-pipe. As far as I know that is really only needed to help the cats from clogging up which I know longer have now what should I do with the other end that connects to the air pump. I makes a strange noise that I don't like if I leave it open. Will it do any harm if I block it off? Should I just get a shorter belt and bypass the air pump all together? What else would I have to do to the egr or passages through the heads if I got rid of the whole system? Thanks guys __________________ '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care.

07-23-2002, 08:43 PM	#2
Brcuda Registered Member Join Date: Feb 1999 Location: St. Louis,Mo. USA Posts: 37	ait pump Buy an Air pump eleminator, that way you can keep the belt you have and it installs in no time at all. __________________ Just a SBF with blower :-) Donathen Racing (302MAN) Tuned by Bob Kurgan Motorsports AMT RACING ENGINES JEFFERS PRO CARS MUSTANG MUSCLE PERFORMANCE & DYNO SERVICE

07-23-2002, 09:15 PM	#3
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	the EGR is a separate system. Removing the air pump and all the hoses, vacuum lines, etc...is the way to go. Just put plugs in the back of the heads, and eithier run a short belt or get the air pump eliminator idler pulley. i have the motorsport one, its a nice piece. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

07-24-2002, 06:21 AM	#5
Conman Registered Member Join Date: Apr 2002 Location: Kingston, Ontario Posts: 351	so just out of curiosity, what do those lines do that run into the heads? __________________ '88 lx, Black on Black, check it out here Spent all my money on school, what a dumb mistake I'm old enough to know better, but still too young to care.

07-24-2002, 02:42 PM	#6
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	Air is pumped from the air pump into the heads through the lines to reduce pollution. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

07-24-2002, 03:26 PM	#7
Coupe5oh Registered Member Join Date: Nov 2001 Location: SanAntonio, Tx Posts: 734	I removed the pump and got a shorter belt, also my heads arent plugged yet, so i guess i have a vaccumm leak there, dont think its much of a problem at the moment. __________________ Police package 5spd 90 Lx, Stock original motor, 3.27grs, BM fan, fms 10.5 clutch, D&D quadrant, and adjuster, ADS chip, 180 stat, mac cai, mac h-pipe, mac subframe connectors, ASP crank pulley, ripper shifter, 26x10.5 M/T sport pros welds. 246 hp according to analyzer Race weight: 3,120 E.t-13.57 with 26x10.50's e.t. streets. 1.88 60' mph- 99.92 mph

07-24-2002, 06:30 PM	#9
MTU 50 GOT TORQUE ???? Join Date: Aug 1999 Location: New Hudson, Michigan, USA Posts: 689	How do you plug the heads? Are they threaded? If so, what size? I have had the air pump bypassed for almost a year now, and I want to get rid of the rest of the lines on the passenger side, but I know I need to plug the head after I do it. I've heard the plug it advice before a half dozen times, but no one ever knows what size the hole is. Not ripping on anybody, but I like to be precise with things. __________________ 1991 GT, AOD, Moroso Cold Air, 3.73s, Pulleys, H-pipe, MAC Pro-Dumps, FMS c-springs, and KYBs, A/c delete, 190 LPH fuel pump, 3-row radiator, Maximum Motorsports full length subframes 2002 Oldsmobile Bravada(wife's car) 2005 Ford Taurus SEL (company ride) GOD BLESS OUR TROOPS !!!!

07-24-2002, 08:06 PM	#10
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	yes, they are threaded. I dont know the exact size, but when you remove whats in there now, you can see for yourself what size it is. __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142

07-24-2002, 08:22 PM	#11
HiFlow5 0 Registered Member Join Date: Mar 2000 Location: Springfield, Ma, usa Posts: 706	The plugs for the back of the heads are a 5/8" thread about 1" long. I just removed my Air pump to clean up the mess under the hood. Looks a lot better now! __________________ NewEngland Auto www.baystategearheads.com -91 Mustang Coupe, ex 4cyl (sold) -99 F150, 3" lift, 35" Procomps, Magnaflow exhaust

07-25-2002, 09:06 AM	#14
sn95gt19 motors done......woohooo Join Date: Mar 2002 Posts: 799	yeah i agree with you, a buddy of mine had his plug fall out, and it sounded like the darn header broke, the leak was so bad. i took my air pump apart and hollowed the insides out with an air chisel, there are little stones in there that act like a seal, that make it pump. i just broke those apart. now its just like an idler pulley. it would probably be more practicle to just buy the eliminator though. __________________ 95gt lazer red (98 cobra clone) Rice Haters Club Member #116

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