Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston

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Tue 22 Apr 2014 14:23
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - genrow

Is it ok to change only one piston?

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Tue 22 Apr 2014 15:14
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - Peter.N.

I cna't see why not, I have done it in the past.

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Tue 22 Apr 2014 15:36
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - genrow

I cna't see why not, I have done it in the past.

Did you have any problems with the engine after?

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Tue 22 Apr 2014 15:40
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - gordonbennet

I can't see why not, I have done it in the past.

And me, one new piston and seeing as the car had covered high miles i chucked new rings on the others, ran sweet for years.

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Tue 22 Apr 2014 15:16
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - skidpan

If a piston is damaged its highly likely the bore is damaged. The engine need a full strip. It will probably require a rebore and that means all 4 cylinders and 4 new psitons. Add in bearings gaskets and labour and you will have a huge bill.

Better idea is to fit a good engine from a write off.

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Tue 22 Apr 2014 15:46
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - genrow

If a piston is damaged its highly likely the bore is damaged. The engine need a full strip. It will probably require a rebore and that means all 4 cylinders and 4 new psitons. Add in bearings gaskets and labour and you will have a huge bill.

Better idea is to fit a good engine from a write off.

The car is with Vauxhall and I suspect they caused the damage trying to remove a stuck injector. The bore looked ok when I insisted looking at what they were doing but the head was not there. They only want to change the damaged parts and I think it will cause problems in the future.

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Tue 22 Apr 2014 18:33
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - craig-pd130

The car is with Vauxhall and I suspect they caused the damage trying to remove a stuck injector. The bore looked ok when I insisted looking at what they were doing but the head was not there. They only want to change the damaged parts and I think it will cause problems in the future.

Is this a warranty job being done by a Vauxhall main dealer? Why were they trying to remove the stuck injector?

It may be that the cylinder walls are completely unmarked, and only the piston crown and / or head are damaged, in which case they can be replaced and all should be well.

But I find it hard to imagine that the piston's been damaged when the engine hasn't been running. I would be very, VERY suspicious about this. I can't help but think they're trying to do a quick, cheap patch-up job that may lead to problems a couple of months down the line, which of course would be completely unrelated to the work done.

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Tue 22 Apr 2014 15:47
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - Collos25

This is extreme case scenario 99% of problems with this engine are cured by fitting a new piston and new rings on all pistons I have yet to see one with bore damage but there is always a first time.Either way you will not know till the head is removed.

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Tue 22 Apr 2014 15:59
Vauxhall Astra 1.3 CDTI 2011 36000 miles - Changing only one piston - genrow

I think the damage was caused by a piece of the injector there are lots of marks on the piston where something has been squashed against it.

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