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How to loosen the Bottom Alternator Bolt?

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Old Jan 25, 2021 | 04:11 PM
  #21  
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Originally Posted by mrrcom
Heres the page for the toyota parts house for the under cover. a bunch of mine broke too

https://parts.toyota.com/a/Scion_200...5410-5102.html

Thanks. I was able to locate the Toyota part number and then found a guy on ebay. They ship from the US and I get 25 for $5 with free shipping. They are supposed to be an exact fit. I will post back when I get them.

Meanwhile, the two new belts and the compressor are working fine. No squeals.

Old Jan 25, 2021 | 07:02 PM
  #22  
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Hi, I find the picture with my Alternator. There is this bottom bolt that if gets rusty one needs a lot of experience to remove it.



This is a long bolt. The end sink inside the hole so will not supposed to turn. If there get stuck is a hard location to access multiple options.



This is my new Alternator. There you can see that is hold in only 2 bolts. One short and one long. When I replace the alternator, the new long bolt was not working. Can not fit the threads.
So, we use the original Toyota old long bolt. This alternator is working now in the car. In the Summer producing about 13.8 Volts, and in the Winter 14.2 Volts.
My car voltmeter is checking all the time the battery charge.

____

Last edited by MR_LUV; Jan 25, 2021 at 11:41 PM.
Old Jan 25, 2021 | 10:38 PM
  #23  
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Would you happen to know the exact bolt size for the long one - diameter, length, thread pitch?
Old Jan 29, 2021 | 05:33 PM
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In the Summer producing about 13.8 Volts, and in the Winter 14.2 Volts.
That is an excellent output voltage
Old Feb 1, 2021 | 02:50 AM
  #25  
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@RichBinAZ, Hi, the best part for having a good alternator, is that now we can switch from an old Battery technology to Lithium Battery. I am not selling batteries or promote a brand name. We can not stop the new, better, and smarter technology to come. The Lithium battery, needs like 10 Amperes or more to charge, at 14 Volt or at maximum like 14.7 Volts. My battery in Scion xB 2004 is Deka, Made in Pennsylvania. The weight of this acid battery is about 56 pounds; this battery can not be discharged 100% (just 50%); the life time for this battery it is about 3.5 - 4 years; can not give fast amperage to many items on the car (like Radio/Music, electric heat, Refrigerator, hair dryer, and more), without lowering the voltage some time close to 10.5 Volts. The Lithium battery cost double in price vs. Acid Battery. The life time of lithium battery is more than 10 years; can be fully 100% discharged; weights like 15 pounds (save already in gas/miles), fast charging in about 15 minutes. Inside each modern battery it is an electronic module to regulate/control the current and voltage. The bad side of the lithium battery is that will not perform if outside is colder than - 4 Degrees Farenheit. Other trick (to get the 10 years working time) is to install the lithium battery far away from the heat (of the engine) must have a cooling device (not to pass 113 Degrees Farenheit).
If one wants to keep his car more than 10 years, then Lithium battery, it is the way!!!
Old Feb 3, 2021 | 08:23 PM
  #26  
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Hi Birsan. No need to convince me about the benefits of lithium batteries, I have converted my motorbikes to run on them.
They last so much longer than lead acids and there is no need for a trickle charger. I have heard that cold weather can be an issue.
The trick is not to over voltage them when on charge. 14V is perfect for most lithiums, some have problems when the voltage climbs to 14.6 and above.
I had to play with the controller on my Suzuki GSX1100G as the voltage was over 15V. So it was boiling the lead acids dry and would blow a LiFePO4 in short order
Found a controller chip that reset the voltage to 14.2V after it warmed up (about 5 minutes). The Suzuki controller was originally 14.5V. Too high to begin with.


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Last edited by MR_LUV; Feb 3, 2021 at 11:08 PM.
Old Feb 3, 2021 | 11:22 PM
  #27  
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Originally Posted by RichBinAZ
Hi Birsan. No need to convince me about the benefits of lithium batteries, I have converted my motorbikes to run on them.
They last so much longer than lead acids and there is no need for a trickle charger. I have heard that cold weather can be an issue.
The trick is not to over voltage them when on charge. 14V is perfect for most lithiums, some have problems when the voltage climbs to 14.6 and above.
I had to play with the controller on my Suzuki GSX1100G as the voltage was over 15V. So it was boiling the lead acids dry and would blow a LiFePO4 in short order
Found a controller chip that reset the voltage to 14.2V after it warmed up (about 5 minutes). The Suzuki controller was originally 14.5V. Too high to begin with.
Hey, nice 1100! I had it's little brother, an '83 GS750E.

____

Last edited by MR_LUV; Feb 4, 2021 at 12:12 AM.
Old Dec 16, 2023 | 03:00 PM
  #28  
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I just had to replace the alternator. I removed the airbag sensor which gave the bolt sufficient clearance to break free. I then used the longest combination wrench I could find and just slowly got it out with the 12 point head. I was slow, but I did not strip anything. It was painstaking.
Old Dec 17, 2023 | 07:22 PM
  #29  
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Hey, that's awesome work!
Any repair that's completed without breaking parts or tools or losing fingers is success!!! Good job!
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