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Discussion Starter #1
Can anyone help me with loosening the serpentine belt on a '94 Tbird LX 4.6L. I have a book on the car, i've printed some stuff off the web, but still haven't seen where to loosen the tensioner.

Pics would help the most if you know of any. I'm trying to put on a U/D Pulley kit that I recently bought.

Thanks.
 

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Trumpeter Extraordinaire
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Welcome to the forums.

The simplest way I can describe how to loosen the belt is this: rotate the tensioner away from the belt, and the belt will become loose. If I recall correctly, a ½" drive ratchet will fit in the square hole on the tensioner to allow you to rotate the tensioner. Be careful while sliding the belt off and releasing the tensioner, as it may snap back quickly.

The square hole is outlined in red. Rotate the tensioner clockwise.

 

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I know on my Exploder (I have not needed to remove the belt on the bird yet) it takes a 3/8 ratchet on the tensioner and I believe it is the same 'type' tensioner on the bird.

You can probably rent a tensioner tool from autozone or buy one from sears. In any case, they look something like this one from Sears:



And as IronChopz said, Welcome!
 

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Discussion Starter #4
Thanks for your reply guys. I'm almost certain that there is a square opening as shown in Iron's diagram. I'm going to give it another shot tonight.
 

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Formerly Fdawg97LX
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the tbird has 1/2" drive size square opening. stick the ratchet in ahd turn clockwise and it will loosen right up.

frank
 

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motor city poster
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i got myself a breaker bar, a really long bar with 1/2 inch drive on the end of it, that did the trick just fine and i can use it for many other things, welcome and great to find another bird in michigan!!

on my car the u/d's dropped my quarter time 1/4 of a second. i went from 15.68 to 15.43 in the quarter. so id definitely say it was well worth it!
 

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ditto on the big bar, its easy to do belts on a bird
 

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Discussion Starter #8
Got the pulleys installed! Took me longer than it should, but it will be much faster if I ever do it again.

Can't wait to run the 1/4 mile and see how she does.

I think the KN Cone Filter will be next. Any thoughts on that?
 

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Cougar Pilot
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3,443 Posts
If you must have a K&N (I do) the panel filter is a bit easier. Just drop it in. With a cone you're stuck screwing around installing it, and you need a heat shield for it to be effective at all.
 

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The weather here isn't stable enough for me to actually post a gain from my pulleys. I ran a 15.91 when it was bone stock in NC. Came to OK, and ran a 15.97 with exhaust, civic tube, and K&N in November 2002. Ran it again both last summer, and could only muster a 15.4x with the same mods. Ran it this summer with pulleys, JMod and True duals, and ran 16.10. I can't pinpoint a time for my car, since the weather goes from 110 in the summer to 20 in the winter. I guess I need to start doing DA corrections to figure out if my mods are actually working.
 

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Fry Rice Specialist
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belt is easy but i'ved no clue how to break lose the dampener bolt......
 

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Whining Intakes Rock
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Rich95XR7 said:
I used an impact wrench on mine.
Yeah Impact wrench. I broke down and bought a decent crafstman. An adjustable 50-400 ft lbs forward and 600 ft lbs reverse. Couldn't get the blades off my tractor deck until I used this puppy.
 

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Formerly Fdawg97LX
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if you dont have an impact wrench you can have someone go under the car and hold the flywheel so the motor wont turn when you try to loosen or tighten the crank bolt. then just use a ratchet and socket to take it off. thats how i've done it on 3 cars now.

Frank
 

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The Band, not the Disease!
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The trick is, trying not to use air tools to install UD pulleys.. =) If you use a ratchet or a breaker bar to get the nut loose, and the engine turns... try hitting the bar (make sure its going counter clock-wise...) and the very fast hit to the breakerbar might brake the nut loose. Also try some mouse milk (not real mouse milk, it's kind of like a penetrant) and leave it on for 2 hours or so. I use mouse milk on Lycoming and Continental Exhaust studs to remove them. Then I mill the port and put new ones in.. works like a charm!
 
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