cam belt/ crank problem - Alfa Romeo Forum
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(Post Link) post #1 of 4 Old 23-10-08 Thread Starter
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Hmmm cam belt/ crank problem

My 156 cut out yesterday at 40mph and now when i turn engine instead of stuttering noise of engine turning over its a constant whirring/whinning, if i stick it in gear and turn key the car jumps forward as usual,( does this mean engine is still turning?) the belt is intact but does not turn when i turn key. there was no noise when this happened like i would expect from a head failure, any ideas as i don't want to buy a new head for nothing!! The "injection system malfunction" warning light came on as i lost the engine too.
thanks guys

Last edited by deanoxxx7; 23-10-08 at 19:53.
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Re: cam belt/ crank problem

Sounds like your cambelt has failed.
The teeth have ripped off of the belt at the main pulley.

The engine will need a lot of work...
there will be many bent valves, etc..
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Re: cam belt/ crank problem

I had this happen to em as well. The keyhole in the crank pulley cracked making the crank spin by itself even with the belt intact! Definately a valve and head job. Besides the crank pulley. Also get another new cam belt as it's not a good idea to keep the current one
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Re: cam belt/ crank problem

Very very rare for that to happen jmacina, much more likley that the teeth have stripped off the belt.
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belt or , cam , crank , problem

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