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Old 08-09-2009, 10:14 PM   #1
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pulley install - tough?

i found an inexpensive steeda underdrive pulley for sale locally. is this something that is relatively straightforward to install myself? i've never done one before.
anyone have instructions floating around? if not, can you run me through the install?
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Old 08-09-2009, 11:28 PM   #2
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Re: pulley install - tough?

It can definitely be installed at home in a few hours at most. Definitely for SN95, but for 5.0 motors it may require a little bit more work.

You will need an air ratchet and a gear puller, other than those two tool the install is straight forward, and some silicon. Remove the belt and replace water pump pulley, should be secured with four bolts. The crankshaft bolt needs to come out and this pulley varies depending on the car, but care should be taken when removing and putting back on. For the alternator an air ratchet is needed to remove the single large pulley bolt. Worse comes to worse you can remove the alternator and take a trip to the local auto parts store and ask them to replace the pulley in house, usually at little or no cost (I've heard).

Search any Mustang site and they usually have some more detailed info for it and you can start off with American Muscle and Mustang World. New York Mustangs might have something too.
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Old 08-10-2009, 11:21 AM   #3
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Re: pulley install - tough?

mustangworld.com has a how to section pully install is on there
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Old 08-10-2009, 12:23 PM   #4
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Re: pulley install - tough?

its pretty easy but its much easier with an impact wrench (air tools) to get the crank bolt back in as it MUST be tight and its hard to tq it down without an impact gun.
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Old 08-10-2009, 05:12 PM   #5
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Re: pulley install - tough?

so what's the deal with the pulley? is it sending less power to all the auxillary pieces leaving more power for the crank? if so, does this lead to other problems like a/c, power steering, voltage, higher temps? i'm guessing that it must not, or people wouldn't use them. i just wonder why Ford wouldn't just put it on to begin with?
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Old 08-14-2009, 09:43 AM   #6
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Re: pulley install - tough?

Had mine for 5 years never had any issues with A/C,temps or P/S if your not running a 600 amp system I won't worry about the voltage
check this link out UDP Tech
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Old 08-14-2009, 09:48 AM   #7
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Re: pulley install - tough?

basically a smaller pulley turns things slower so it takes less power from the engine (crank) to turn them. It doesn't add power it frees up what you already have. Expect 5-7rwhp/tq out of it with a crank pulley.
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Old 08-14-2009, 10:51 AM   #8
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Re: pulley install - tough?

good tech article. i like the faq section. those wer pretty much all the questions i had.
i supposed the question of why ford doesn't install them initially has something to do with the factor of safety. caveat being if you run pulleys, keep a close eye on your gauges, right?
in other news, the pulleys i was looking at sold to another purchaser. so i'm going to hold off for now.
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Old 08-14-2009, 11:50 AM   #9
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Re: pulley install - tough?

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Originally Posted by 968 View Post
good tech article. i like the faq section. those wer pretty much all the questions i had.
i supposed the question of why ford doesn't install them initially has something to do with the factor of safety. caveat being if you run pulleys, keep a close eye on your gauges, right?
in other news, the pulleys i was looking at sold to another purchaser. so i'm going to hold off for now.
No stock pullies are cheap to make !!! Don't even bother watching the gauges
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Old 08-14-2009, 10:03 PM   #10
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Re: pulley install - tough?

dont use the alternator one. i did and had problems with my alternator being able to keep up due to it spinning slower. you dont NEED an air rachet though. just keep the belt on until all the bolts are broken loose. i installed the ones on my 95 in 20 minutes. its not a bad job
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