Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: thunderjet302 on March 28, 2007, 07:24:56 PM

Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on March 28, 2007, 07:24:56 PM
So I'm doing the HO swap as we speak and I'm eliminating the air pump and all it's tubes and such. Do I have to either run the air pump disconected or run an eliminator bracket, or is their a shorter belt that will by pass the air pump but still run the water pump, A/C, power steering, and alternator? I'd rather just not bother with the eliminator and clean up the front of the engine a bit if possible. Thanks :D
Title: Shorter belt to by pass the air pump?
Post by: V8Demon on March 29, 2007, 12:39:20 AM
Remove pump and bracket and run a shorter belt.  You don't need an eliminator or anything like that.
Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on March 29, 2007, 01:50:10 AM
I figured I could do that but thanks for the reassurance. Any idea on a belt part# that would fit? If anybody knows that would be nice.
Title: Shorter belt to by pass the air pump?
Post by: Brypur on March 29, 2007, 04:23:29 AM
You can run a piece of string or rope around it to come up with something close and just make sure you can return if it don't fit.

Bryan
Title: Shorter belt to by pass the air pump?
Post by: vinnietbird on March 29, 2007, 07:10:59 AM
I did the samwe thing,but I don't remember the length,sorry.I ran a string around the pulleys and got a ball park figure and then drove to Autozone to change belst (you can bypass it with the pump still on.I messed with belts in their parking lot so I wouldn't have to buy 6 belts or keep driving back and forth.I eliminated my a/c as well.It never worked,and I am used to not having it after 8 years.
Title: re belt
Post by: 87 cougar aniv on March 29, 2007, 09:23:10 AM
a 77 inch belt works
Title: Shorter belt to by pass the air pump?
Post by: slamedcat on March 29, 2007, 10:32:37 AM
Get the non A/C belt.

http://autozone.com/servlet/UiBroker/?UseCase=C001&UserAction=answerRequiredQuestion&Parameters=%7C%7EWithout+A%2FC&PageSync=4
Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on March 29, 2007, 11:59:36 AM
The non a/c belt works then. Cool. Just a dumb question but do you have a picture of how it should be routed?
Title: Shorter belt to by pass the air pump?
Post by: slamedcat on March 29, 2007, 12:02:00 PM
Thats what I used on my car. I don't have a pic but it just goes from the crank pully to the alt pully.
Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on March 29, 2007, 12:03:29 PM
Ok I'll figure it out. I just have to make sure it runs the same way or I'll spin the water pump in the wrong direction :hick:
Title: Shorter belt to by pass the air pump?
Post by: slamedcat on March 29, 2007, 12:09:05 PM
(http://i144.photobucket.com/albums/r170/slamedcat/26422461415.jpg)

I did have one.
Title: Shorter belt to by pass the air pump?
Post by: 88sportcoupe on March 29, 2007, 12:38:08 PM
The non-A/C belt also fits if you still have the A/C and you Power Steering pump seizes and burns your belt off. :flame:
You can bypass the power steering pump and go straight over the A/C compressor. So what i am trying to say is A non-A/C belt is the proper length to bypass the power steering pump and keep the A/C compressor if need be.

Just some, probably useless, information from my own personal experience.:hick: :hick:

Its not very fun trying to park the car with no power steering though.
Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on March 29, 2007, 12:52:19 PM
So are you saying that if I do this I'll screw up my power steering pump or that if the pump goes my belt will fry? I figure that if the power steering pump goes my belt is fried either with or with out the idler pully.


Thanks for the pic slamedcat:D
Title: Shorter belt to by pass the air pump?
Post by: vinnietbird on March 29, 2007, 01:32:54 PM
Just install the belt and you'll be fine.No worries.I've been without smog equipment for a long time (no a/c either),and have never had any issues.Don't look to deep into this subject.Get the belt.Install the belt.Forget about the belt.Enjoy the car.That's it.
Title: Shorter belt to by pass the air pump?
Post by: 84 Fila on March 29, 2007, 02:30:18 PM
What about on an older bird like mine. I have the ALT and air pump on a serp belt and the water punp and PS on the V belt. Right now I'm just running the air pump disconnected and it's spinning free. Works OK for me
Title: Shorter belt to by pass the air pump?
Post by: ZondaC12 on March 29, 2007, 02:51:35 PM
^^^ yeah i might eliminate my air pump too. sittin there pumpin air....back into the air. ive kept all the hoses and diverters, and ill keep the pump, its original equipment, but id like it outta there, itsa little bit ugly :hick:
Title: Shorter belt to by pass the air pump?
Post by: JrP on March 29, 2007, 03:33:46 PM
On my 84,302 with smog pump removed the belt length from the crank to alternator pulley is 39 inches, dayco belt # 5060390.When you remove the smog plumbing from the back of the heads plug the hole in each head. They are threaded and will accept a 9/16 x 1 inch course thread bolt. Probably the only place you will get this bolt will be a machine shop-- 50 cents each. Put some sealant on the bolt to prevent leaks.
Title: Shorter belt to by pass the air pump?
Post by: 84 Fila on March 29, 2007, 03:35:41 PM
I used a spark plug broken off and threaded it in:hick:
Title: Shorter belt to by pass the air pump?
Post by: 88sportcoupe on March 29, 2007, 03:53:57 PM
No I was just saying something that happened to me. The power steering pump froze up and the belt burnt off. So i bypassed the power steering pump with a non A/C belt. I just re-read what i posted and i left out a sentence.:hick: :toilet:
Title: Shorter belt to by pass the air pump?
Post by: ztrane on April 01, 2007, 09:12:43 AM
Just for kicks... what kinda psi are we talking about on the smog pump??
Title: Shorter belt to by pass the air pump?
Post by: slamedcat on April 01, 2007, 09:22:45 AM
not enough to act as a super charger.
Title: Shorter belt to by pass the air pump?
Post by: CougarSE on April 01, 2007, 10:21:07 AM
I've heard of people using them as superchargers.... on a Briggs
Title: Shorter belt to by pass the air pump?
Post by: thunderjet302 on April 01, 2007, 04:17:46 PM
I have a Briggs powered lawn mower...............
Title: Shorter belt to by pass the air pump?
Post by: ZondaC12 on April 01, 2007, 08:56:43 PM
haha id love to super/turbo charge a small engine. or just hop it up in general, like shaving the head, porting it or something like that. :hick:
 
i LOLed when i saw that post though "how much psi are we talking" many people have thought about using the air pump as a supercharger. sure would be sick if it worked though!!!! Kenne Bell would have no business!!!
Title: Shorter belt to by pass the air pump?
Post by: slamedcat on April 02, 2007, 12:16:07 AM
Change the pully size and you could use it to blow all the leaves and dirt out of the engien bay possibly.
Title: Shorter belt to by pass the air pump?
Post by: ztrane on April 02, 2007, 07:17:06 AM
haha it was worth a try, the mentality behind the purpose of a smog pump just stupifies me
Title: Shorter belt to by pass the air pump?
Post by: *MAYHEM* on April 02, 2007, 08:11:03 AM
Hmmmm.....  This has me thinking.....
 
If you're running mass air and you ran those hoses into the intake between the air filter and the MAS it might give you a little boost off the line. Not a lot but you might get 5-10 hp. Any thoughts?
Title: Shorter belt to by pass the air pump?
Post by: mywifeskitty on April 02, 2007, 08:19:31 AM
i have a 91 ho from a thunderbird.... when i took off the smog pump, with a/c still there, i used a 93inch 6 ribbed serp. belt that i got from advance for $19... everything works great  here's the routing