Worried. Wobble from cooling fan (B200E)

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samdale
Posts: 35
Joined: 14 Sep 2010 08:32 pm

Worried. Wobble from cooling fan (B200E)

Post by samdale » 12 Feb 2011 02:18 pm

Car started producing a bad rattle last night so had a look this morning.

Image

The pulley near "A" is loose (I can wobble it by hand) and I can see metal shavings around it. Sounds aweful when engine runs and can see it wobbling. Managed to get home alright last night (engine ran fine apart from the noise).

I'm by no means a mechanic but would really like to know whats wrong. Hope it's not terminal, break it to me lightly :(

Jos360
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Re: Worried. Wobble from cooling fan (B200E)

Post by Jos360 » 12 Feb 2011 06:57 pm

The star-shaped plate is bolted on the pulley where the belts run over with the same 4 bolts (visibly fastened on your pic) as the pulley is bolted with to the waterpump flange.

Tighten the 4 bolts, if that doesn't help you need to change the waterpump as the axle has play on it.

To tighten the bolts, remove the 4 bolts on the back holding the fan on (A in the pic). Make sure you keep the fan in upright standing position, do NOT lay it down flat as that breaks the fan (oilchambers inside flow to wrong position).

Then the 4 bolts you need to fasten become visible. If those are not loose and the pulley is, the waterpumpaxle is worn out. A new waterpump solves the problem :)

The flange that contains the thread for these 4 bolts has a press-fit on the water pump axle. If thats loose you can't fasten it again without appropriate machinery.

samdale
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Re: Worried. Wobble from cooling fan (B200E)

Post by samdale » 14 Feb 2011 07:38 pm

Cheers for the reply, seems like an easy enough fix even if I have to change the waterpump.

How big a job is it? Bit worried that the first instruction in the Haynes manual is "remove the radiator" however the whole procedure seems pretty simple if not long

sven360
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Re: Worried. Wobble from cooling fan (B200E)

Post by sven360 » 14 Feb 2011 08:29 pm

Radiator is easy peasy lemon squeezy to remove.
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volvosneverdie
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Re: Worried. Wobble from cooling fan (B200E)

Post by volvosneverdie » 15 Feb 2011 11:55 am

sven360 wrote:Radiator is easy peasy lemon squeezy to remove.
Oh rly?

Easy peasy
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L14MNP
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Re: Worried. Wobble from cooling fan (B200E)

Post by L14MNP » 15 Feb 2011 12:07 pm

Yeah they are. Also the whole front of the car can be removed in about 5 minutes. :lol: 8) 10 minute job tbh.

I have had a bit of unwated practice though, the amount of times I have pulled mine apart to fit electric fans, fix the rad, fit the FMIC, fix the turbo oil return.... :lol:
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samdale
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Re: Worried. Wobble from cooling fan (B200E)

Post by samdale » 15 Feb 2011 09:21 pm

L14MNP wrote:Yeah they are. Also the whole front of the car can be removed in about 5 minutes. :lol: 8) 10 minute job tbh.

I have had a bit of unwated practice though, the amount of times I have pulled mine apart to fit electric fans, fix the rad, fit the FMIC, fix the turbo oil return.... :lol:

Sunderland's near Edinburgh right...? Just in case you want a bit more practise :D

Whole front end in 5 mins ey? That'll be a whole weekend I'll have to free up then :lol:

sven360
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Re: Worried. Wobble from cooling fan (B200E)

Post by sven360 » 15 Feb 2011 09:50 pm

samdale wrote:

Sunderland's near Edinburgh right...?
As Londinium is to Paris.
Keeper of The Knights' of Bushido-lest we forget

Write it in your heart.
Stand by the code and it will stand by you.

Ask no more and give no less than honesty,courage,loyalty,generosity and fairness.

The code of the West.

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