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04-26-2018, 04:52 AM | #19 |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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Good plan, I'll do a test this weekend. It was mainly an observation since I'm not sure if it's normal for the Yaris engine to hesitate a bit with only the fan on.
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05-06-2018, 12:42 AM | #20 |
Drives: 07 Yaris Hatch Join Date: Aug 2017
Location: UT
Posts: 50
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Yes it was from a 2011 Scion XD. Sorry for the late post.
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05-11-2018, 08:40 PM | #21 |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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Funny that I was just responding to this thread last month and my alternator just went out today... Hmm, might be worth it to upgrade, thanks for letting us know =D
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05-19-2018, 02:11 PM | #22 |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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I just popped in an alternator from a 2010 Scion XD and it was surprisingly a bit cheaper than the Yaris one from ebay. The only thing other than using a longer bolt and washers on the bottom is that the pulley is about 1/4"-1/2" larger than the original belt. I would unmounted the old pulley to put on the new one but that seems like a ton of work. Other than that, the belt seemed to get caught on something at the bottom of the engine constantly which took a few tries to get it unhooked.
OP, is the larger pulley going to be an issue? |
05-19-2018, 02:15 PM | #23 | |
Banned
Drives: 2015 Yaris LE 3door 1F7 Join Date: Feb 2017
Location: Massachusetts
Posts: 963
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Quote:
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05-19-2018, 04:33 PM | #24 |
Drives: 2008 3dr hatch, 1.5L, 5-spd MT Join Date: Mar 2016
Location: Lovettsville, VA, USA
Posts: 6
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Looking at the specs for Duralast alternators on the AutoZone, so this is speculative.
The Duralist alternators that fit a 2008 Yaris, generate 80 amps, and the Duralast alternators that fit a 2011 Scion xD output 100 amps. https://www.autozone.com/batteries-s...ing/alternator |
05-19-2018, 07:04 PM | #25 | |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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Quote:
Also, I've heard bad things about the autozone recertified alternators for both their economy and premium lines. |
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05-21-2018, 06:34 AM | #26 |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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Belt's squealing badly with the wider pulley or it could be that I put too much tension on it. Will re-adjust it and see if the problem persists. It's intermittent at the moment but will see if a shop will be able to swap pulleys for me for a fee.
Something the OP glossed over was the fact that it was REALLY difficult getting the bottom bolt aligned when sliding it through the center and threading it onto the other side. A ratcheting wrench would make it much easier once you get the threads started (which again is a PITA!). The washers will be impossible to put on without gluing them together first. Last edited by 07liftback; 05-21-2018 at 07:09 AM. |
05-21-2018, 10:00 PM | #27 |
Drives: 07 Yaris Liftback Join Date: Nov 2010
Location: Bay Area
Posts: 147
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Turns out the pulley is completely different. The one on the Scion XD is a clutch type:
https://www.autozone.com/batteries-s...ley/546684_0_0 The one on the Yaris is a typical pulley held in by a 22mm hex nut. Not only is the Scion XD pulley wider, there are 6 grooves on it and the Yaris one also has 6 grooves. You're basically putting the 6 groove belt on 4 grooves of the XD pulley. I readjusted the belt and it's still squealing really bad. After probably ruining my belt, and having to resell this XD alternator, I will now purchase a 2012 Yaris alternator instead from a lower mileage Yaris. Although the connectors are the same and you can get it to fit with a longer bolt, the OP should've addressed these issues before leading people to think it was a simple upgrade. This upgrade does not work unless you find a way to attach the old pulley on the XD alternator. Also, the XD alternator doesn't fit snug enough and that slight vibration is enough to make the belt squeal LOUD. |
06-05-2018, 05:43 PM | #28 |
Drives: 2007 Toyota Yaris Sedan Join Date: Mar 2013
Location: MA
Posts: 105
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I have 212k miles on my 07 Sedan, and hooked up an after market headunit with a 500watt amp + subwoofer about a year ago. The stock alternator powers it just fine - no lights dimming or anything. I DID however have to have the alternator refurbished at a local alternator/starter rebuild shop because the bearing was making noise. This was at approx 180k miles. It was still charging just fine at this point. My guy said he went into it and cleaned up all the contacts and replaced the bearing. Still running fine all these miles later.
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