Astra H 1.9cdti strange ticking noise from engine

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Anyone know what exactly noise from?
When engine will heat noise going away.
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After replacement timing belt kit all sounds was gone.

I think 90% that it was the sound of a guide pulley (gm 93178807) because it’s been looked really worn out.

Safojas
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This noise seems fairly common on 2.0CDTi engines which have done 70k+ miles, mine included. I looked at several vehicles, all had this noise apart from a friend's car which has done 40K miles. It is warmth related as it disappears once upto temperature. As it coincides with belt speed, possibly belt tensioner or a pulley?

andyroid
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Nekem is ilyen "kuppogós" hangja van. Kuplung nyomásra, elengedésre neked is változik? (erősödik kinyomott kuplunggal, halkul elengedve) Melegen nekem sem hallatszik, de rohadtul idegesít. A kettőstömegű-kuplung-kinyomó 12.000km-el ezelőtt lett cserélve.

attilagoga
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Hi. I have a similar problem. Mine also cuts off when it warms up with a loud ticking noise. Did you discover what it was? please help.

KhanyisaMedia
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Why are you running the car without a serpintine belt attached you could overheat and blow your engine

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