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Nick_Micouris

Whistling noise on some start ups

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Hello all

Am getting a whistling noise when I start my car. :roll: Sometimes this is when the car is cold or hasnt been used much. Today the car was a little hard to start (seemed as the batt was nearly flat) and it was whistling for a while.

Ideas anyone??

Cheers

Nick

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Don't see why it would whistle, unless the bearings were messed up or the belt was slipping.

You're sure it's not our old friend the belt tensioner?

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Sounds like the belt tensioner bearing to me!

 

Seconded!

 

Alternators whine, PAS pumps moan/grind and tensioner bearings whistle......

 

HTH

 

K

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Alternators whine, PAS pumps moan/grind and tensioner bearings whistle......

 

But can they play a good tune or hit a decent Harmony?!? :wink: :lol:

 

Sorry, I'll get my coat... :lol:

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Yeah get the bearing changed ASAP otherwise it'll seize solid and the plastic pulley will melt away.

 

Get a long socket extension bar and use it as a stethoscope and just confirm it's definitely that before parting with any cash.

 

Or you can remove the pulley and check it. Get a 15mm socket and turn the nut clockwise to loosen as it's a reversed thread. Then stick a long 8mm bolt (B&Q sell them) into the threaded hole on top of the alloy tensioner housing and screw it down until the tension is taken off the belt. Take the pulley off and spin it by hand. If it's stiff and / or grindy, the bearing is shot.

 

K

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Wales in the ocean?? that'd mean lots of people drowning then.... :roll: :lol:

 

*cough* Whales *cough*

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Where can you get the replacement bearing from, then? VW said you can only get the whole assembly which is pricey. I have actually changed the whole thing but still have my old tensioner but it has a worn bearing. Is the tensioner worth hanging on to?

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Yes! PhatVR6 has a box of replacement bearings and is looking for a tensioner assembly with a good pulley to use so he can swap these on an exchange basis.

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BTW - I got an 8mm bolt from B+Q and it wouldn't fit!?

It seemed to be very slightly too wide? I was confused, to say the least!

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The bearing details are in the stickied thread in Servicing.

 

It's like CD rip offs..... we find ways round things because VW are too greedy.

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Was talking about the threaded hole that you use to release the tension on the belt. It's supposed to be an 8mm thread that holds the tensioner off so you can safely take the belt off the pulley. The bolt holding the tensioner onto the engine may well be 13mm, I'm not sure.

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Yep, the tensioner bolt is just a common or garden 8mm job with a 13mm head. I picked up a 5 inch long black bolt from B&Q and it works fine.

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