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Discussion Starter #1
wanted to document this for others - realtively easy job and replacement brush yoke and brushes was $16.85 from eBay
Starter motor was easy for me to access as I have the Radium CAI and the stock air intake box is gone

Disconnect the battery
Disconnect the stater motor main lead and solenoid lead
The starter motor has two main bolts, one 14mm and one 19mm - go figure..socket rachet and short extension needed. Also there is a support bracket at the end which has two 10mm bolts. Removing the top bolt and loosening the lower bolt is all that is needed as the bracket will swing out of the way (these are fiddly to get to to say the least)
Once removed you can get the details off of the motor to order your brush yoke
Remove the 2 Allen screws and the two 8mm bolts on the end of the starter motor and the end cap comes off
There is a large circlip holding the brush yoke on the rotor, remove this and the brush yoke comes off.
Clean up the commutator slots with a junior hacksaw blade and or craft knife and use fine emery cloth to clean the comm surface.
Fit the new brush yoke - its a bit of a fiddle to get the brushes held back while sliding the yoke over the comm but it can be done with one person.
Once the motor is reassembled it would be advisable to check that it works with a battery
Refiiting of the motor is the reverse of dismantling
 

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Illegal Alien
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Needs to go to the How-to section.
 

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I don't know too much about starter motors. What would necessitate this being done? Was the engine having difficulty turning over on startup?
 

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Discussion Starter #5
I don't know too much about starter motors. What would necessitate this being done? Was the engine having difficulty turning over on startup?
Yes. All I got was the solenoid clicking, no starter motor turning. Removed the starter and stripped it down which revealed two of the four brushes were seized in the yoke and not making contact with the comm. cleaned it up and replaced it long enough to get a replacement yoke and brush assembly
 

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TXBRITT, Thanks for the post, I just registered on Lotus Talk and thought I'd add to your post after researching starter issues. My 2011 Evora was becoming difficult to start. Checked the battery, was at 100%. A few days later car didn't start while out at lunch. No clicking when the key was turned (tried several times), but lights and fob were active. Opened engine compartment and tapped on the starter and attempted restart; restart successful. Removed the starter that night following your post using the sockets indicated, except for the larger bolt which on mine was a 17mm vice 19mm. Bolts were hard to get to, but the 19mm required a breaker bar initially due to an inch of thread lock. Disassembled the starter, which contained almost a quarter cup of dust particles. There was water intrusion into the starter brush area, which rusted one of the brushes in place. The rusted brush and another one were worn down significantly. Using the part number on the starter, I attempted to locate the yoke and brush assembly on eBay without success; however, I found one very similar that I ordered for $15.25 hoping it would fit and align properly based on the picture. Received part within 5 days and it fit perfectly (see information below). I cleaned the starter, reapplied grease to the gears, and attempted to prevent future water intrusion by using liquid electrical tape on the cap and around the seam once assembled (don't know how well that will work; poor design). Reassembled the starter and installed. Car started without issue on 8 DEC 17. I'll update the post if anything changes. Hope this helps someone else.

https://www.ebay.com/itm/NEW-PREMIUM-BRUSH-ASSEMBLY-NISSANS-INFINITY-WITH-HITACHI-STARTERS/142406846929?hash=item21281c09d1:g:4Z8AAOSwcL5XMz5b&vxp=mtr

NEW PREMIUM BRUSH ASSEMBLY-NISSANS & INFINITY WITH HITACHI STARTERS

Cost: $15.25 (beats $594.00 for a new starter not including labor)

For : • Hitachi PMGR Starters

Dimensions: • Motor lead 87mm L

Features: • 100% New WAIglobal

Also See: 68-8129;68-8137;69-8118
Used On: BMW (2001-2006) , Infiniti (1996-2001) , John Deere (1998-2005) , Kubota (1999-2010) , Nissan (1995-2010) , Yanmar (1994-2003)
Replaces: Hitachi 2114-73105, GD213648-D, Nissan, Infiniti 23378-0M300
Unit Nos: BMW 12-41-1-354-823, 12-41-1-740-373, 12-41-1-740-374, 12-41-1-740-375, 12-41-1-740-379, 12-41-7-515-391, 12-41-7-515-396; Bosch 0 001 108 401; Denso Europe DSN954, DSN955; GM 10455018; Hitachi S114-800, S114-800A, S114-800B, S114-801A, S114-801B, S114-801C, S114-801CR, S114-801D, S114-801E, S114-802A, S114-802B, S114-802BR, S114-806, S114-806A, S114-806AR, S114-815, S114-815A, S114-817, S114-817A, S114-821, S114-821A, S114-822, S114-822A, S114-822B, S114-833B, S114-844, S114-844R, S114-902, S114-902A, S114-902B, S114-902R, S114-922; Hyundai 36100-2Y000; John Deere AM879072; Kubota T1060-16800, T1060-16804; Letrika (Iskra) 11.139.430; Letrika (Iskra) Sales IS 9308; Letrika (Iskra) Tech. AZE2198; Nissan, Infiniti 23300-0M200, 23300-0M200R, 23300-0M201, 23300-0M300, 23300-0M301, 23300-0M302, 23300-2J260, 23300-2J261, 23300-2J261R, 23300-2J262, 23300-2Y900, 23300-2Y900R, 23300-31U00, 23300-31U01, 23300-31U01R, 23300-31U02, 23300-31U02R, 23300-63J02R, 23300-8H00R, 23300-8H300, 23300-EN200, 23300-EN200R, 23300-EN20A, 23300-EN20B, 23300-EN21ARE; Prestolite 20513073, 20513073; Renault 7701065384; Valeo TM000A24601; Valeo Tech 579377; Yanmar 118400-77010, 129608-77010, 129698-77010
Lester Nos: 17146, 17695, 17702, 17713, 17745, 17779, 17980, 17982, 18219, 18288, 18290, 18440, 32265, 6330-HI
 

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I will bump this to say thanks. Last year I thought my battery took a crap on me and replaced it and everything was fine, kinda. When I replaced it the car didn't start up right away and I taped it with a hammer once and it started. I thought it was good but I ordered the $15 eBay brushes in case.

I have no issues or hesitation. Drove the car around all day yesterday, starting it up about 6 times. This morning I jumped in it to go to work, click. Tried a couple times, click. Put the battery tender on it all day, click.

I took out the starter like the instructions said and 3 out of the 4 brushes were completely gone. The used one in the OP post looks like a champ compared to mine. Clean, replaced. Good to go. $15 and an hour.
 

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Just wanted to add that if you're unlucky like me and you ordered a spare/replacement brush holder too late, you can go to most any auto parts place and get a remanufactured starter for a 1999 Nissan Maxima/200SX/Inifinti I30 and harvest the parts from it. It seems none of the parts places stock the starter components any more.

In fact, not only do they share the same starter brush yoke, but also the reduction gears and armature. The field coil and solenoid might also transplant just fine too. And since I snapped off one of the long bolts that holds the yoke and cap to the motor frame, those can also be borrowed from the donor unit.

My brushes were only ~3 years old since the last rebuild, but they were almost disintegrated completely. The only indication they were failing was a few slow-to-crank starts the past 2 days. Today was the day they decided to not even do that.
 

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Are these parts that are wearing out from an aftermarket starter motor or parts? I have a hard time believing a Toyota starter motor would not make it to 200,000 miles. I know Toyota sources the starter motors from someone else like Denso or Hitachi, but they should be quality pieces.
 

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Are these parts that are wearing out from an aftermarket starter motor or parts? I have a hard time believing a Toyota starter motor would not make it to 200,000 miles. I know Toyota sources the starter motors from someone else like Denso or Hitachi, but they should be quality pieces.
The OEM starter is Hitachi (but not one found on any Toyota), but like all starter motors, brushes are normal wear items. I assume my original brushes lasted from new to 2016, as the car was delivered to me in a non-starting condition. It was rebuilt at that time, so the aftermarket brushes lasted only about half the time.

I suppose a worn commutator could contribute to accelerated brush wear. Next time mine needs new brushes I'll swap the whole armature out and see if that makes a difference.
 
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