Sat at the side of the road...

[Rusty]

Yes, hence why I've not used them anywhere that is critical

[PeterS]

I cleaned it to check over; it was pretty sooty before

Plugs are a nice colour so I'm sure it's running properlyish.

Yes, Alex, it came apart so easily, I'm surprised it stayed together All stainless fasteners, new gaskets and I torqued everything to the factory manual values.

Err, you do know that stainless fasteners typically have a lower yield strength, right?

https://www.boltdepot.com/fastener-i...ade-chart.aspx

[4WDrifter]

I blame Jesus

Weird sense of humour he has.

[Rusty]

Done 1500 miles or so. Will have to wait and see what the head is going to cost and all the other bits. £750 maybe...

[Greg_S]

Sorry to hear this mate. Had you covered many miles since the rebuild? Hopefully wont be too costly to put right

[LHD_Kid]

Ok I have been hearing noises when the engine is cold so need to make sure the tension is correct

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If I understand correctly, it was not actually an issue with the cambelt... it was a break of the alternator belt which freakily bounced off the ps bracket and caused the issue with the cambelt jumping...

To me, it implies that I should check my alternatir belt a bit more often, but the chances of this happening once are slim... but twice....?

It worries me slightly because I'm sure I run too much tension on my 3B alternator belt as it has to drive a 120A alternator...

[A80Avant]

Ok I have been hearing noises when the engine is cold so need to make sure the tension is correct

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[diesel des]

I blame Jesus

Amen brother.

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[Error404]

I blame Jesus

[Rusty]

Valves were all bent in a fraction of a second. As soon as the timing belt slipped, they were gone.

There was no sign that the cambelt had been affected (the hole I found was small and obscured from view) and the chances of an alternator belt affecting the cambelt are tiny, so it didn't cross my mind. Sat at the side of the road in the middle of nowhere on a cold & rainy day, anyone would try to get back to warm cup of tea...

Basically, it was a freak occurance and there was not anything I could have done. To say anything else is just rubbing salt in the wound.

[UrS4boy]

I think Andy's damage happened as soon as the broken alternator belt got tangled in with the cam belt and the cam belt skipped 10 teeth. A few rotations later, the 10 intake valves were bent. It was over before he pulled to the side of the road. The restarting attempt, while retrospectively ill-advised, probably added no further damage. It was done.

At least when the cam belt breaks the valve train doesn't rotate anymore and only two or four intake valves get piston-whipped and bent. Not much difference in the amount of labour to fix both scenarios though. Head has to come off.

[4WDrifter]

So was out for a run today and while going through a village at a sedate speed, there was a loud sound like gravel hitting the car and then the engine cutout...

On inspection, the alternator belt had disintegrated and oddly the car wouldn't start.

Long and short, looks like the alternator belt has caused the cambelt to jump... have to wait and see when I get it apart but just waiting for a flat bed to get me the 3 miles home now...

Andy, going back to the side of the road, I know it's impossible to know, but do you think the damage would have been less had you not tried to restart the car after it cut out. I know from personal experience that our instinct is to try to start the engine but maybe if we just said to ourselves " right a belt has gone, let's get recovered and get to a garage to get a proper inspection " perhaps no bent valves? Or does it all happen in the blink of an eye?
Gutted for you anyway.

[220bhp]

Good luck with the repairs. I look forword to hearing its all fixed, so you can enjoy the car again. it was tuff luck after all your hard work.

[Colesy]

Sorry to see this Andy, hope the repairs aren't too costly.

[Rusty]

I cleaned it to check over; it was pretty sooty before

Plugs are a nice colour so I'm sure it's running properlyish.

Yes, Alex, it came apart so easily, I'm surprised it stayed together All stainless fasteners, new gaskets and I torqued everything to the factory manual values.