Fan Blower Unit In R32 Overhaul

[mtopxsecret6]

Ok.

If your fan blower is playing up.. ie intermittantly working.. or not working at all.. and you can hear the high load relay switch on when you hit full speed fan. Or you can tap the motor and the fan starts working.. then this will show you how to fix it.

This is for the r32.. gtst or gtr there the same car people.. or the r33 even the 34.. the difference being the location and access to the fan blower in the 33 and the 34. In effect all you doing is removing the blower motor, so if you get that far on the other models you can tag along from that point on this write up.

1st.

locate where you glove box is. should be on your dash on the passenger side. Now, if you dont know your car doors from your wheel nuts.. then.. i'd probably not even start this.

2nd.

Alright.. lets get stuck into it.

Underneath the glove box is two screws which hold it onto a support brace.. remove these screw.. and remove the glove box. Dont try and be a smarty and go lossing all the screws where going to be removing hey..

3rd.

This is what it looks like with the glove box removed.. you can see the support brace.. the side garnish the heater core and the blower motor on the left.

4th.

This garnish needs to be removed.. it has 3 screws on it.. one on the door side.. with a garnish clip.. one at the bottom where the glove box was.. and at the top aswell. Now, on the inside is a clip.. reach in and unclip this little sucker.. so you dont break it of your dash.

the clip

Now with the side garnish gone.. this is what it will look like now.

Ok, the support brace has 4 screws holding it. Remove them and the brace. If you get it right, it should look like this.

5th.

Ok, there is 3 screws and one electrical plug on the motor. Undo these and the motor with fan will slide downwards and out.

Remove from car and it should look simillar to this..

If not.. youve removed the wrong thing. Dont be my surgeon when i go into hospital.

Ok, this is where the other model lads can join back in on this expedition.. thats right.. you 33 and 34 boys and gals..

6th.

now time to pull it apart and fix it.

On the back of the motor is two small screws.. remove them.

Remove the fan with the 10mm bolt. it has a slot guide.. and may be a bit tight. but it should look like this when done.

As you can see by this picture.. it may well be very dirty!

Ok there is a small plastic cover.. sealing off the plug guide.. here

And the plug looks like this

gently remove it.

7th.

You now need to reverse the fan and use a brake pad spreader tool or somthing similliar and prise the motor from the plastic housing like so..

the tool.. other than yourself..

The motor is in very tight.. so slowly does it alright.. no kung fu crap to get it out either alright.

Once out it will look like this

and this with out the fan attached

8th.

There is two screws on the back of the motor.. remove them and the whole assembly comes apart.. looking like this.

You will nothice in my photo.. that mine is filthy on the inside.. so this suggests to me that this car was not a 70k old car.. by no means!! Anyways.. time to get in there and clean. I used some turps.. and rag.. and some elbow grease to come up with this result..

Bloody beautiful!!

9th.

Now.. this is why your fan blower.. doesnt work!.. look at that just disgraceful!!

Ok.. to fix it!

You need these tools..

So.. what we are doing here is.. filing away the ridge caused by the wear of the brushes.. and cleaning the pitted area off the commutator.

So.. gently with the file.. file the commutator back flat till you get a nice smooth clean surface again.. like this picture..

beautiful! Now.. if your hands hurt from this.. its ok.. its called exercise.. you dont get enough by the sounds of it.

Now.. you would have noticed before you started filling there was groves around the commutator.. and now there probably isnt.. like the above picture.

so with a sharp tool such as a mini file.. or hack saw blade etc.. re-grove these slots.. make sure there is no connection between each segment.. it should look something like this.. (not a good picture this one)

10th.

Now.. the brushes.

THIS IS IMPORTANT!! So focus grasshoppers!!

The brushes are a very soft material.. and must be treated with care!! There will be grooves in them.. you need fine sand paper to remove these.. otherwise we will end up where we started in no time!

here are the grooves..

Now.. it only took 3 wipes with the sandpaper to remove the groves.. BE GENTLE!! it will look like this when done properly

11th.

Ok.. the overhaul is complete!.. to reassemble.

There is two bush bearings in the motor.. that the main shaft rotates in.. i used a little bit of vaseline as a lub in there.. (dont get sidetracked with the vasso like i did..cough)

Ok.. if you did it right.. it looks like this again!!

Oh!.. all clean and like brand new again!!

12th.

Make sure you clean the inside of the plastic housing and fan with soapy water.. and that they are nice and dry. To reinsert the motor.. I turned it upside down and pushed the plastic cover over the motor.. with the motor pushing against a piece of wood.

Now replace cleaned fan and bingo!!

13th.

OK.. last step.. putting it back into the car. Hopefully you remembered where you got it from in the first place....

Nice new working fan again!