2007 Toyota Camry LE Alternator

[Nick1994]

Originally Posted by maverickfhs
Originally Posted by eljefino
Do some diagnostics. My 2000 camry blew its 100 amp alternator fuse.

Can you please elaborate? Is there a fuse inside the alternator or under the hood?

On a 97-01 Camry it's under the hood in the fuse box.

 

[Trav]

Originally Posted by nthach
All the parts store stuff is the same these days, just the warranty but the same cheap Chinese bearings, brushes and rectifier bridge/regulator are there. Sometimes, if the slip rings or stator are bad, dubious reconditioning.

Trav argues Denso remans are nothing special - but at least on ones where Denso did supply the OEM part, there's new brushes, rectifiers and regulators in them and new bearings from Koyo or another Japanese bearing supplier. And the parts are Denso ones and not knockoffs from WAI. But on non-Denso units, meh.


100% false! Where do you see any parts being replaced here as part of the rebuilding process if its not defective, no doubt it has new brushes.
Don't compare aftermarket remans to OE channel reman products.


Quote

Bearing - 100% tested to OEM specifications and repacked with premium OE-standard lubricant.
Stator - Insulation tested to 600 volts.
Rotor - Performance and insulation tested to 600 volts.
Housing - Re-tapped to OEM specifications and damage-checked for heat warping, corrosion, or improper surface alignment.
Hardware - 100% stripped and replated.
Rectifier - Performance tested to 300 volts.
Voltage Regulator - 100% voltage tested to OEM specification.
Slip Ring - Re-machined to an average of 8 microns (20 micron run-out maximum), minimizing brush wear and abrasion.


https://www.rockauto.com/en/moreinfo.php?pk=2140798&cc=1433263&jsn=381

 

[dishdude]

How do you repack an alternator bearing?

 

[Trav]

Only they know for sure but I can only imagine the tear the seals off and replace them, its not like they don't have access to them.
The fact they resort to such penny pinching IMO is very telling don't you think.

 

[nthach]

Originally Posted by Trav


100% false! Where do you see any parts being replaced here as part of the rebuilding process if its not defective, no doubt it has new brushes.
Don't compare aftermarket remans to OE channel reman products.


I've tore apart a Denso reman alt for a Lexus in an attempt to track down a bearing noise - and I saw Koyo Japan on the bearings, but it was a different trade number than what was used on the OEM alt(I think the OEM one used a 6202 and a 6300 series bearing). The brush holder looked just like Toyota OEM, with the white nylon shield and brownish-red silicone insulator. The voltage regulator looked like OEM, Denso tends to use bright finished heatsinks, while Chinese aftermarket is dull gray.

The alt was a Denso FTF in the blue box that I installed in 2010.

 

[eljefino]

Originally Posted by maverickfhs
Originally Posted by eljefino
Do some diagnostics. My 2000 camry blew its 100 amp alternator fuse.

Can you please elaborate? Is there a fuse inside the alternator or under the hood?


Look for battery voltage at the alt's huge output terminal (covered by plastic.) To get fancy there's a way to test the field terminal wires too. If the mega-fuse blew there'd be nothing at the alt's big lug.

The AZ alt tester (probably a midtronics battery tester) has the driver run the AC, high beams etc to put a load on the alternator then looks for diode ripple which is a subtle AC wave mixed in with the DC voltage, as well as the more obvious voltage problems. If you have the alt off the car there's another bench tester that's more accurate.

 

[Trav]

Originally Posted by nthach
Originally Posted by Trav


100% false! Where do you see any parts being replaced here as part of the rebuilding process if its not defective, no doubt it has new brushes.
Don't compare aftermarket remans to OE channel reman products.


I've tore apart a Denso reman alt for a Lexus in an attempt to track down a bearing noise - and I saw Koyo Japan on the bearings, but it was a different trade number than what was used on the OEM alt(I think the OEM one used a 6202 and a 6300 series bearing). The brush holder looked just like Toyota OEM, with the white nylon shield and brownish-red silicone insulator. The voltage regulator looked like OEM, Denso tends to use bright finished heatsinks, while Chinese aftermarket is dull gray.

The alt was a Denso FTF in the blue box that I installed in 2010.



It probably needed a new bearing so they changed it, the rest is of course going to look OE as it is OE they didn't change it just cleaned and tested it.
A lot can change in 8 years.

 

[zzyzzx]

Alternators are often easily repaired.