Bypassing Smog Pump

Scrapla · 10-26-2004, 08:25 PM

I have a 90gt and I bypassed the smog pump about 6months ago and I want to remove the whole set up we no longer have emmsions down here in florida and i'll worry about reinstalling it if they do come back someday. What is the easiest way to plug the hole left behind on the H pipe when removing the smog pump line I heard a big enough bolt and some high temp RTV works, and if it does is there a certain bolt size?

westridez · 10-26-2004, 08:29 PM

id squeeze it shut and weld the end on it or hammer a big bolt in it that fits tight and if it leaks weld it or put some muffler cement around the edges

Scrapla · 10-26-2004, 10:39 PM

Yea I was hoping I wouldnt have to weld I really want to do it in my driveway but thanks

westridez · 10-26-2004, 11:21 PM

Quote:

Originally Posted by Scrapla

Yea I was hoping I wouldnt have to weld I really want to do it in my driveway but thanks

when i did the pipes on the back of the heads for the polution i took the pipe off and cut them and put them in a vise and crimped it shut and it dont leak so if you could find something to crimp it instead you would'nt have to weld

crazypete · 10-27-2004, 07:10 AM

Here's a better idea that is reversible:

Take the air pump tube and hack off a few inches at the end. Pound one end flat and fold it over and stuff rtv inside it to seal that end then slide this onto the h-pipe's tube and clamp it as an endcap. This way, you can simply pull the cap off later if you need your air tube.

Scrapla · 10-27-2004, 11:39 AM

Good idea thanks guys

Ackbar00 · 11-03-2004, 10:10 PM

I used a high temp rubber hose with a bolt shoved in the other end. Two calmps and all was done.

KiltedBanshees93GT · 11-05-2004, 09:47 AM

Scrapla:
Are you running all the other factory accessorys? The reason I ask, is that I spent about 4 hours wed morning running back and forth to the part store trying to find a belt to bypass my smog pump (siezed on the interstate tues night en route to work, shredded the belt, resulted in a nice long walk...Less said about that night the better

)
Anyway, we were using pep boys, and IIRC tried everything from the 780r6 through like the 720, and could not get anything to fit. Finally I bypassed the P/S too, and got that one right on the first try. (705r6 I think)
If you know of a belt that'll work and leave the P/S active too, I'm not going to bother replacing the pump right now. *pathetic squeak* Help?
(I just replaced the smog pump about 6 mos. ago, and am not looking forward to doing it again)
(BTW the car has P/S, A/C, alt and smog.)

Thanks
J

canukracer · 11-08-2004, 05:25 PM

just pluged mine on the weekend the plug i used was 5/8 thread 3/4long it had a allen head in it so you maybe able to install it with the heads on i used tread lock on the threads too.

Scrapla · 11-08-2004, 06:17 PM

I cant remember what belt size sorry its been a while now and it rubbed off the belt itself and I dont have the package, I did go through the same ordeal I must have tried 4 diff belts until I got this on and just to get it on took about 30min and it was a fight so if u got a belt that looks to small just really try and get it on because this belt looked to small and we finally got it on there, also im sorry but I lost the link there was something on the web that gave me the correct size so try a a search on www.google.com

KiltedBanshees93GT · 11-10-2004, 10:10 AM

Thats cool anyway, we got it running that day (eventually), and I replaced the pump this last weekend. Pretty impressive failure,too, it completly melted that plastic cover on the front of the pump. I had to take a couple of pics for the scrapbook

J

10-26-2004, 08:25 PM	#1
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Bypassing Smog Pump I have a 90gt and I bypassed the smog pump about 6months ago and I want to remove the whole set up we no longer have emmsions down here in florida and i'll worry about reinstalling it if they do come back someday. What is the easiest way to plug the hole left behind on the H pipe when removing the smog pump line I heard a big enough bolt and some high temp RTV works, and if it does is there a certain bolt size? __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

10-26-2004, 08:29 PM	#2
westridez Registered Member Join Date: Oct 2004 Posts: 48	Re: Bypassing Smog Pump id squeeze it shut and weld the end on it or hammer a big bolt in it that fits tight and if it leaks weld it or put some muffler cement around the edges __________________

10-26-2004, 10:39 PM	#3
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Re: Bypassing Smog Pump Yea I was hoping I wouldnt have to weld I really want to do it in my driveway but thanks __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

10-27-2004, 07:10 AM	#5
crazypete Registered Member Join Date: Sep 2002 Location: Boston Posts: 592	Re: Bypassing Smog Pump Here's a better idea that is reversible: Take the air pump tube and hack off a few inches at the end. Pound one end flat and fold it over and stuff rtv inside it to seal that end then slide this onto the h-pipe's tube and clamp it as an endcap. This way, you can simply pull the cap off later if you need your air tube. __________________ 91 GT Carb conversion, holley 600 double pumper, edelbrock performer intake, FMS "C" drop springs, march 1000 underdrive pullies, crane 1.7 roller rockers, GT-40P headers, bassani x pipe, american thunder catback, FMS 4.56's, msd aL6, trunkmount battery, A/C eliminator kit, 3000 stall tci streetfighter, AOD with transgo kit, A+ servo, 300M hardened lockup shaft, kevlar bands and 28,000 gvw trans cooler, 3 core radiator, 300 lbs stripped with a full interior

10-27-2004, 11:39 AM	#6
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Re: Bypassing Smog Pump Good idea thanks guys __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

11-03-2004, 10:10 PM	#7
Ackbar00 Rebel Fleet Commander Join Date: Oct 2001 Location: Huber Heights, OH Posts: 1,003	Re: Bypassing Smog Pump I used a high temp rubber hose with a bolt shoved in the other end. Two calmps and all was done. __________________ 1993 Mustang GT, PTK w/ T-64 - My Cardomain Webpage 11.25@123.5 on only 8 psi. 10.84@121 on only 1 headgasket "The Truth is, Your the Weak, and I am the Tyranny of Evil Men!"

11-05-2004, 09:47 AM	#8
KiltedBanshees93GT Registered Member Join Date: Jun 2000 Location: Pigeon Forge Tn Posts: 611	Re: Bypassing Smog Pump Scrapla: Are you running all the other factory accessorys? The reason I ask, is that I spent about 4 hours wed morning running back and forth to the part store trying to find a belt to bypass my smog pump (siezed on the interstate tues night en route to work, shredded the belt, resulted in a nice long walk...Less said about that night the better ) Anyway, we were using pep boys, and IIRC tried everything from the 780r6 through like the 720, and could not get anything to fit. Finally I bypassed the P/S too, and got that one right on the first try. (705r6 I think) If you know of a belt that'll work and leave the P/S active too, I'm not going to bother replacing the pump right now. pathetic squeak Help? (I just replaced the smog pump about 6 mos. ago, and am not looking forward to doing it again) (BTW the car has P/S, A/C, alt and smog.) Thanks J __________________ ____________ '66 Mustang Coupe- AKA "Lenore" on disability for a (long) bit '93 GT Mostly stock AKA "Fawkes" Rice Haters Club Member #239 "I find your lack of faith...disturbing." "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats." H. L. Mencken

11-08-2004, 05:25 PM	#9
canukracer Registered Member Join Date: Jul 2003 Location: alberta canada Posts: 108	Re: Bypassing Smog Pump just pluged mine on the weekend the plug i used was 5/8 thread 3/4long it had a allen head in it so you maybe able to install it with the heads on i used tread lock on the threads too.

11-08-2004, 06:17 PM	#10
Scrapla Registered Member Join Date: Apr 2002 Location: Florida Posts: 532	Re: Bypassing Smog Pump I cant remember what belt size sorry its been a while now and it rubbed off the belt itself and I dont have the package, I did go through the same ordeal I must have tried 4 diff belts until I got this on and just to get it on took about 30min and it was a fight so if u got a belt that looks to small just really try and get it on because this belt looked to small and we finally got it on there, also im sorry but I lost the link there was something on the web that gave me the correct size so try a a search on www.google.com __________________ 90gt 347 and some bolt ons :-) RICE HATERS MEMBER #73

11-10-2004, 10:10 AM	#11
KiltedBanshees93GT Registered Member Join Date: Jun 2000 Location: Pigeon Forge Tn Posts: 611	Re: Bypassing Smog Pump Thats cool anyway, we got it running that day (eventually), and I replaced the pump this last weekend. Pretty impressive failure,too, it completly melted that plastic cover on the front of the pump. I had to take a couple of pics for the scrapbook J __________________ ____________ '66 Mustang Coupe- AKA "Lenore" on disability for a (long) bit '93 GT Mostly stock AKA "Fawkes" Rice Haters Club Member #239 "I find your lack of faith...disturbing." "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats." H. L. Mencken

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