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Old 12th September 2021, 15:49   #1
chicochapman
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Default Cooling fan motor repair

I see on the Rave disc there is this dire warning :-


"Caution - fan assembly must be replaced if removed, do not fit original assembly"


Anybody know what the risk of putting back the old unit might be?
thanks,
Malc
PS this looks like quite a big job, just to get at the motor
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Old 12th September 2021, 19:49   #2
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I believe the statement refers to the fan blades rather than the motor. The plastic bayonet clips holding the blades to the motor spindle are said to get brittle with age, however I’ve re-used the fan blades on several occasions and never bought new blades.

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Old 13th September 2021, 20:21   #3
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Thanks for the re-assurance. I'll just be careful.
Malc
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Old 14th September 2021, 20:36   #4
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Now can you remember what size socket you used to "hold" the centre spindle nut with ?
I've got a 1/4" drive socket set that stops at 14mm which seems too small
but might have been thin enough and a 3/8" drive set where the wall is too thick. Looks like a 15mm size ?
thanks,
Malc
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Old 14th September 2021, 21:22   #5
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Quote:
Quote:
Originally Posted by chicochapman View Post
Now can you remember what size socket you used to "hold" the centre spindle nut with ?
I've got a 1/4" drive socket set that stops at 14mm which seems too small
but might have been thin enough and a 3/8" drive set where the wall is too thick. Looks like a 15mm size ?
thanks,
Malc
Hi Malcolm.
To remove the fan blade you do indeed need a thin walled 15mm socket, which will hold the nut while you turn the blade clockwise.

If you are referring to repairing the fan motor with new brushes, then the fan as whole including the cowling needs to be removed from the car, takes about an hour.

Bumper off, slam panel off with lights attached, then remove the fan, if your car as gas then it's best to cut the cowling round the A/C joints so you do not have to disturb the A/C gas.

If the motor is ok and the brush board is ok you can add new brushes, then fit the fan back on the car.

https://youtu.be/v422cKkvFAk


https://youtu.be/ls1BJGxUoPo
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Last edited by Arctic; 14th September 2021 at 21:25..
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Old 14th September 2021, 21:52   #6
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Just a slight revision to the above, even though Arctic is vastly experienced. I suggest you don't cut the cowling or attempt to remove it, instead when everything is unbolted / free, raise and pivot the right hand side (as you face it) outwards. There's enough room to get your hand in between and undo the three torx bolts holding the fan motor. Done about 10 fan jobs this way and will be helping another owner next week.

Try and time the job so that you can drench the torx bolts, and ideally the two cowling waist bolts while you have lunch, they can be quite stubborn.

Good luck

ps. When he says takes about an hour, that means 2 and a half hours for us mortals

Last edited by vitesse; 14th September 2021 at 21:55..
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