Bit worried now, as the mechanic changed the timing belt, tensioner, and water pump. It was fine for 2 days, but there's a metal rattling noise around 2000rpm now, when cold and hot as well. I'm wondering he made it too tight and the tensioner bearing already gone, or something became loose after 2 days?
Hope you have any suggestions.
Attached link to the noise video:

https://www.dropbox.com/s/h3bc4f3bl2j91y9/20151126_083042.mp4?dl=0

Thank you

I can't play that file for some reason. Have you opened the bonnet and asked someone to rev the motor for you. It might help to locate the noise. A known rattler is the heat shield on the exhaust manifold.

Hi,colleague!My case was the same-the same noise.The timing belt was very tight.Loosen the timing belt the noise disappeared.The engine became quiet again./sorry for my english/

Take the timing belt covers off and have a look at the tensioner. There's a gauge on the tensioner which tells you if the right amount of tension is being applied to the belt.

I had the same thing after fitting a new belt and tensioner, it turned out that the belt was to tight and I ended up needing a new water pump . So being as you have replaced the pump fingers crossed it is just the belt that is a little to tight grapeman were is this gauge you mention ? I never saw one when I did mine

tlo said:

I had the same thing after fitting a new belt and tensioner, it turned out that the belt was to tight and I ended up needing a new water pump . So being as you have replaced the pump fingers crossed it is just the belt that is a little to tight grapeman were is this gauge you mention ? I never saw one when I did mine

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The gauge is on the tensioner. When you adjust it, the notch on the outer body needs to align with the inner body's notch. See the attached picture (I've put red circles around the notches)

Thanks mate I never new that :worship: having said the my kit was not from fiat and am sure it did not have the notches in

grapeman said:

The gauge is on the tensioner. When you adjust it, the notch on the outer body needs to align with the inner body's notch. See the attached picture (I've put red circles around the notches)

Click to expand...

you sure these marks are on tensioner?

flisko said:

you sure these marks are on tensioner?

Click to expand...

They certainly are for the 16v engine. I wouldn't have thought fiat would have a different tensioner for the 8v.

I don't recall anything like that on the 8V. It's just a bearing with an eccentric retaining plate on the mounting post. Finger pressure to tension whilst tightening.