Line of attack with a failed timing belt...

Line of attack with a failed timing belt...

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bungz

Original Poster:

1,960 posts

121 months

Wednesday 27th July 2016
quotequote all
Hello

I have a friend with a 307 1.6 petrol that he has neglected to change the timing belt on (original belt after 12 years!) and it has snapped.

As the car is now worthless we are wondering if we give it a weekend or two if it can be revived.

My friend wants to replace the belt and see what happens, I feel however if the belt has gone while driving it will have bent valves and we should prob pop the head off before we do this as it will be time wasted otherwise?

Any pointers to how we check if there is defo bent valves?

Only taken part in one timing belt change once about 5 years ago but as we haven't a lot to lose I feel we should give it a go.

Any help would be great, cheers.

bungz

Original Poster:

1,960 posts

121 months

Wednesday 27th July 2016
quotequote all
Thank you for the quick replies. It is a 53 plate I think or a 04 so we maybe in luck!


bungz

Original Poster:

1,960 posts

121 months

Wednesday 27th July 2016
quotequote all
Bennachie said:
307 1.6 16v petrol is interference engine. Sadly its goosed.
I did think this but was trying to be hopeful.

Scrap head - skim? - and back together is my personal line of attack but will see what he wants to do, if I can get the manifold off easily then cant see it being too bad a job... unless the pistons are a mess.

bungz

Original Poster:

1,960 posts

121 months

Wednesday 3rd August 2016
quotequote all
Had a gander at the belt and it looks like it has jammed or got stuck causing one of the pulleys to rip through it. Belt was pretty rotten tbh teeth had cracks in them.

Will strip further and inspect pump as I think that has jammed causing the mess.

The cams are also solid, this would tell us the valves are all bent wouldn't it?




Edited by bungz on Wednesday 3rd August 09:16

bungz

Original Poster:

1,960 posts

121 months

Wednesday 3rd August 2016
quotequote all
It seems to be fairly straight forward to get a new head on it.

Will get head off and have a gander, is it likely the pistons and rods be ok?

bungz

Original Poster:

1,960 posts

121 months

Tuesday 9th August 2016
quotequote all
I believe the car was going around 30mph when it went.

Have timed it up and done a compression test, noute, 30psi, noute and noute. Yup valves all bent.

Will take the head off with the view to getting a scrap motor to port the head across too.

bungz

Original Poster:

1,960 posts

121 months

Monday 15th August 2016
quotequote all
Heads off, came apart quite easily in the end.

Most of the valves have had a good kiss from the pistons so will prob look for a replacement.

Anyone got a idea of a price? Would it be cheaper just to get a whole engine?