Engine noise

[jamsh]

Whistling noise coming from front of my engine, one of the pulleys, it sounds like. This noise disappears after 5/10 minutes running and the car runs smoothly.
Anyone any ideas?

https://youtu.be/_NFOzqsiCRk

 

[Tuercas viejas]

That sounds mighty like the sheaved idler pulley!
How many miles has the car done since the accessory belt and pulleys were last changed --IF ever?
The whole lot should be replaced at 100,000 mile including the belt tensioner.

I work on this engine family a lot and you can often locate the noise simply by using a long thing screwdriver and place it on a stationary part of the engine near each component and hear the racket it is kicking up! A bit like doctor and a stethoscope when you put your ear to the screwdriver handle.,
In this case the sheaved idler is hanging on the water pump body via a stud screwed into the casting.
Further to the right will be a cotton reel plain smooth idler which might also be on the croak! As might be the belt tensioner idler guide pulley itself .
Check the whole lot including the water pump which might also be the source of the noise.
All the best
Tuercas Viejas