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CF3 pistons different?

Right, last question for tonight...i've got a CF3 piston that needs replaced, can I use pistons from earlier lumps or was there any differences with the CF3 internals?
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There are differences.
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so i'll need to source a CF3 piston david? bugger....
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AFAIK the difference is to incorporate the thinner head gasket...
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so i'll need to source a CF3 piston david? bugger....
Donít worry we can send you one out, give Dan a call tomorrow 01525 221 921

Ned
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Donít worry we can send you one out, give Dan a call tomorrow
Ned
Might be worth getting a conrod as well, Niall, after what was said on your thread.

There should be a number stamped on your pistons. Obviously you won't be able to read the one that's been mashed, so you'll have to hope it matched the numbers on the other ones!
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why do they have to make things so awkward....or is there some method to their madness??
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i'll clean them up and see what i can make out...ned, i'll probably be in touch
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why do they have to make things so awkward....or is there some method to their madness??
It's a size indicator, from what I can gather - the pistons are matched to the bore when the engine is built. Presumably the wear in whatever machinery is used to make the bores (and pistons) leads to a bit of variation in size...
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ahhhh....that makes sense. I feel i'm on a very steep learning curve at the mo!
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ahhhh....that makes sense. I feel i'm on a very steep learning curve at the mo!
There's not much you won't know by the end of this. About twinnies, anyway!
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yeah, i'll probably know that i should have bought a gallon of petrol and a box of matches the other week
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Pistons are different, rings are different as well on a CF3. Give me a call if you need anything I've got it all in stock. Are you going to just repair what's damaged or do a full rebuild?
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Donít worry we can send you one out, give Dan a call tomorrow 01525 221 921

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There you go I said Dan could help you out

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Pistons are different, rings are different as well on a CF3. Give me a call if you need anything I've got it all in stock. Are you going to just repair what's damaged or do a full rebuild?
Cheers Dan - i'll give you a bell once i've worked out what we need....the plan is to just to just repair what's been mashed (the bottom end is staying in the car) but if there are some easy and worthwhile things that could be done at the same time it's worth thinking about.
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Cheers Dan - i'll give you a bell once i've worked out what we need....the plan is to just to just repair what's been mashed (the bottom end is staying in the car) but if there are some easy and worthwhile things that could be done at the same time it's worth thinking about.
What's actually gone wrong with it? Cambelt, started to knock, or thrown a leg out of bed?

The 166 is a pain to work on because of that big square subframe, but I think the only thing you can't do without dropping the subframe and removing the gearbox is to take out the crank. By dropping the sump you should know if the crank is OK or not.
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Have a wee look here for the full gory details (it's not pretty!):

https://www.alfaowner.com/Forum/alfa-...ml#post3681034
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Have a wee look here for the full gory details (it's not pretty!):

https://www.alfaowner.com/Forum/alfa-...ml#post3681034
Ouch! Looks like it was the valve dropping off that caused it..
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indeed - nice mess it made for such a wee lump of metal!
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