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alternator nut size?

Old 08-26-2009, 08:59 PM
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alternator nut size?

anyone know what thread size the alternator nut is? i would like to replace mine with the pulleys but i don't want to pay $99 for the SR Motorsports one.

Last edited by nuke0907; 08-28-2009 at 09:40 AM.
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Old 08-28-2009, 08:43 AM
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I believe it is a 17mm...
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Old 08-28-2009, 09:40 AM
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i dont mean what size wrench will i need. i need to know the thread size.
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Old 01-13-2012, 12:49 PM
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Did you figure it out as I wanna change mine .
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Old 01-13-2012, 03:41 PM
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Shifty Which nut, the adjustment lock nut or lower nut to secure the alternator .
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Old 01-13-2012, 04:05 PM
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If nobody answers you can always just remove the nut and venture into home depot. Take the nut and try it on every bolt that looks like it may fit. They usually even have a thing set up with every bolt pointing at you so you can do this. Make sure the nut goes down past the tip of the bolt and then you can be sure its the right thread and pitch. That is... only if nobody responds here.

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Old 01-14-2012, 03:57 AM
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@fastfreddie61 its the nut holding the alternator pulley on the big beefy one.
@xexok thanks for the suggestion but 2 small issues with that in in the UK and we don't have home depot,s our equivelant is pretty finish also if I take the nut of how do I drive to the store lol

For stuff like this unfortunatly I have to rely on internet stores.
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Old 01-14-2012, 12:20 PM
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Ah I didn't see where you were from. I figured maybe someone could drive you up to the store, but my suggestion was more of a last option anyway. Seems like any post about thread pitch never gets answered on this forum, I can't find it searching anyway.
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Old 01-15-2012, 03:16 AM
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Thanks anyway might have the size though a guy from the Mazda rotary club seemed pretty clued up so il see where that gets me and if its right il post the size here.
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Old 01-15-2012, 03:30 AM
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Shifty, good stuff, I searched and asked around, but to no avail . Sorry mate.
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Old 08-17-2018, 04:46 AM
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Old thread so for the sake of archive: it's an M17x1.5 metric nut. Be sure not to use a to height one since the thread is not that long.
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Old 06-07-2019, 11:28 PM
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Originally Posted by Tkswdr View Post
Old thread so for the sake of archive: it's an M17x1.5 metric nut. Be sure not to use a to height one since the thread is not that long.
Seems like an odd size, but after swapping out the nut on mine I can confirm that this is correct. It’s also called a “short flanged nut” as compared to just a plain type.
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