Nissan Tiida DIY generator repair

Details: nissan tiida do-it-yourself generator repair from a real master for the site my.housecope.com.

Unfortunately I didn't take a photo. I take a picture of how I will collect.

The procedure is actually not that difficult, but it takes patience.

Remove the expansion tank (pull it up), disconnect the tube. Disconnect the alternator wiring harness from the body mount. Remove the expansion tank mount.

Now you need to remove the alternator / air conditioner belt.
To do this, loosen the nut on the tension roller, then turn the adjusting bolt counterclockwise to loosen the belt (the bolt is between the generator and the compressor. Wrench 8 is needed). Having completely unscrewed the tensioner nut, you can remove it and change the bearing there, if necessary.

Next, we throw off the belt (here you can check the condition of the compressor bearing by turning the pulley by hand).

Disconnect, if not yet disconnected, the negative terminal of the battery.

We disconnect the excitation winding terminal, unscrew the power plus from the generator, the black wire - the ground (here a small short key is desirable - the bolt is inconveniently located).

We remove the wiring harness from the mount, remove it so as not to interfere.

The generator is mounted on three bolts, two at the front and one at the back at the bottom.
The first two can be unscrewed without problems, in order to unscrew the lower one - you need to unscrew the plastic protection from the bottom and work from under the car.

All now, having found the position in which it will pass, we take it out towards the washer reservoir.

Disassembly
I still did not understand how to disassemble it, I will write how I disassembled it myself.

We unscrew the four pins on the sides, unscrew all the screws on the back of the generator and the nut on the plus. Gently pull off the back cover with a light hammer - it will first jump off the stator winding, then with a little effort, the rear bearing is removed from the housing and remains on the rotor. (do not lose the plastic washer on the positive terminal.)

Video (click to play).

Now you can pry out the stator from the front cover and carefully remove it from the mesh with the brushes. To remove the diode bridge, we solder it with a powerful soldering iron from the stator. It only hangs on wires.

Now the most difficult thing is to unscrew the pulley. Here you need a good vise and a 24-bit head and a pipe for extra effort.

We tighten the pulley through two pieces of wood in a vice (the cuttings from old ski poles fit me). We pull the vise with the pipe. I don’t know how to describe the effort, but it’s very big. Probably better by trial and error - if you do not make it, it will simply turn. The pulley is very strong and not wrinkled in the least. We are trying to unscrew the nut (also with a pipe). It didn’t work - we drag it out and try again. It is advisable to periodically spray VDshkoy on the pulley nut, knock with a hammer and dance with a tambourine.

We put the generator with the ears of the front cover on two bricks and knock the rotor down through the piece of wood (we catch it so as not to break it).

Now you can change the front bearing (it is behind the cover and can be easily removed from the housing if not distorted).

I have not been able to knock the rear bearing off the shaft yet :(. Here you will probably have to get a puller.

I don’t know how to collect it yet, but I think in reverse order))).

And do not repeat my mistakes - be careful with the diode bridge - when I hammered the pins into place in it - I broke one diode :(.

Yes, bearing numbers:
Front 6303LV NTN (number 23120-22J20)
Rear SC00A06LHI NTN (or SC00A11LHI, Size 10x27x11)
Tensioner 6301DULX JAPAN NSK 172

Generator number 23100 0M005, LR170-746K Hitachi

Image - Nissan Tiida DIY generator repair

In order to tighten the alternator belt on the Nissan Note, you need to: raise the car on a jack, remove the wheel, unscrew and remove the fender liner (it is held on 3 self-tapping screws from the bottom and 3 clips).Now we find the tension roller and loosen the fastening nut. Behind the tensioner roller there is a bolt (turnkey 13), and it needs to be tightened to tension the belt.

There are 2 ways to get to the tensioner pulley bolt. It is necessary to remove the radiator grill, which rests on clips from above, 2 latches at the edges of the headlights, and many latches at the bottom of the grille (they snap off by pressing the middle down and pulling the grille towards you). Next, you still need to remove 2 pistons from the plastic frame at the headlight, now you can get to the bolt.

The second method is easier, but not more convenient. From the side of the removed wheel arch liner, we put our hand behind the roller, feel and put the key on the bolt, and slowly twist it.

Check the adjustment by pressing your finger on the belt from below, the deflection of the old belt is 4.8-5.3 mm, the new one is 4.2-4.5 mm. If it is impossible to determine by eye, you can use the steelyard. After tensioning the belt, we tighten the tensioner roller nut and assemble everything in the reverse order.

DIY video guide to tightening the alternator belt on Nissan Note. do it yourself: