Complete loss of drive on a peugeot 207

Soldato
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Coming home in the evening, on motorway around 68-70 or so, heard and felt a clunk or thud, and had complete loss of drive. Dropped clutch and moved to hard shoulder and stopped.
I have a flashing battery light on dashboard.

Checking under bonnet and the alternator belt has snapped. Whichnwould account for the noise and the loss of power steering. Trying to restart results in engine turning over at normal speed but nothing starting.
Car is a 207 1.6hdi. 70000 milea all normal peugeot services done every 12k, last one at 60k.
Chap who recovered the car and a mechanic who had a quick check figure something else is wrong, as the belt snapping or failing shouldn't have resulted in immediate loss of drive. Battery is fine and she has plenty of fuel.
They will have a proper check come Monday, but think a fuel pump might have failed causing loss of drive triggering a belt snap or similar.
Anyone have any thoughts? Or similar occurances?
 
Aux belt is the alternator belt? If so there was a complete snap, and in the region of the snap there was a one inch long piece which looked excpetionally heavily worn.
 
If there is a 1" section with stripped teeth, then it sounds like something has seized. The bit with no teeth was on the pulley that seized.

Sometimes the aux belt being thrown off, or snapped in this way can throw the cambelt off.
 
I'm not really up on modern diesel engines, is there a high pressure pump driven off that belt? If so, it sounds possible that it has seized and then snapped the belt. That'd explain why it won't start now!
 
I was thinking of the aux belt snapping and being sucked under the covers and under the cambelt, throwing the timing out...
 
I'd expect the engine to turn over slightly faster now if that were the case, all the valves will be bent / snapped open so there'd be no compression.
 
Belt was sitting there snapped but not lost, so i don't think it went anywhere, I was able to just lift it off where it should have been attached.
Wonder if that belt feeds a fuel pump? No idea myself, guess the mechanic will know when he looks, but he said he would have expected it not to quit running on the loss of the belt.
 
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Does the belt drive the high pressure pump? (Fuel pump)

on my 2.0 HDi the HP Pump is driven by the cambelt I believe.
 
Bet the aux belt has taken the cambelt with it. Does it sound like its still got compression when it turns over?

Take the oil cap off and have a look whilst someone turns it over see if the cams are still rotating.
 
Don't know where the crankshaft position sensor is on those but if it's on the front pulley it may have simply taken that out when the belt broke or even taken out a different sensor whilst it was flapping about.
There's no way it could happen the other way round as you suggested.

You need to work on your terminology a little too.
A loss of drive is disconnection of engine to road wheels whilst in gear.
What you suffered from was the engine cutting out... I think.
 
this look anything like
5598xs.jpg



as far as i can see, only things on the aux belt are a/c and alternator

i *think* the pas pump is part of the steering rack
 
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Don't know where the crankshaft position sensor is on those but if it's on the front pulley it may have simply taken that out when the belt broke or even taken out a different sensor whilst it was flapping about.
There's no way it could happen the other way round as you suggested.

You need to work on your terminology a little too.
A loss of drive is disconnection of engine to road wheels whilst in gear.
What you suffered from was the engine cutting out... I think.

I think you are right, the engine did cut out, but I was in gear and at seventy at the time. The cut out meant I had to drop the clutch so as to avoid engine braking and allow me to get to the hard shoulder.

Guess I will find out on Monday what is going on.
 
this look anything like
5598xs.jpg



as far as i can see, only things on the aux belt are a/c and alternator

i *think* the pas pump is part of the steering rack

Power steering is on it also, as I completely lost power steering, didn't matter thankfully, small car. From above I can only see three of those cog things, could be six, just didn't have the car up to get a proper look.
 
Power steering is on it also, as I completely lost power steering, didn't matter thankfully, small car. From above I can only see three of those cog things, could be six, just didn't have the car up to get a proper look.

Have you actually loated the pas pump on it?
According to a bunch of manuals i acquired the pumps have been electric since 2006. It is possible however you would lose this when the engine cut.
 
I do not know.
I bestbleave it to the mechanic, i don't have the car anymore, sitting in his yard till Monday.
Pump might be electric, he thought a low pressure fuel pump might have gone, thought that was located behind and under the drivers seat, he mentioned this now.
Anyway, will have to wait and see.
 
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