Hi there Guys

I'm looking for some info on Piston Rings for a Seicento 1.1 Sporting.
I had the engine rebuilt just under a year ago and when the pistons and the rings where purchased it was noted that the oil ring was a three piece as apposed to a single piece.
This didn't match the type of piston supplied yet the parts supplier insisted that the ring would work.
About 2500kms into the engine's new life it started using oil and fouling up the spark plug on number 2 with loads of oil.
The engine has now been opened again and the head is fine. The parts supplier has agreed to replace the rings but still insists that the 3 piece is the only one available.
I was wondering if anyone knows what other rings I can match up to my seicento that would have the solid oil ring?

Federal Mogul (GOETZE). Fiat engine 172B2.000 Euro2 (Fire) 1108.
1 ring set pack.
Part No:
08-142300-00. Ring sizes: 70x1.2+1.2+2.5 STD.
08-142306-00. Ring sizes: +0.40
08-142308-00. Ring sizes: +0.60

http://www.enginepartsuk.net/goetze
https://www.google.co.uk/search?q=g...v&sa=X&ei=GB4lUtyCOIWa0AXCuoDgAQ&ved=0CE4QsAQ

Both types of oil control ring should work fine. I would be wanting to determine the real cause of the oil consumption.

If the oil control rings have failed, it is very unusual for it to be a material or component failure. But they do need the right environment to work in.
1. Are the bores round, parallel and the correct clearance for the new pistons?
2. Have the pistons/rings picked up in the bores indicating a clearance, lubrication or overheating issue?

Also consider what the original reason was that you had this work done. Was it just wear and tear, or was there an underlying cause that may not have been addressed? (e.g. If overheating caused the first failure, and the cause was not addressed, it will cause further failures). Even wear and tear may not have occurred over the whole life of the engine. Just because it may have a high mileage and needs an overhaul, does not mean that the wear was gradual over its lifetime. Outside influences may have accelerated the wear over just the last few hundred or thousand miles.

Give us as much detail about the age. miles and reasons for the original rebuild. Including any mods or harsh use.

If you used an engineering shop Id not go back to them again.

But if the ring suppliers replaced the rings for free that is really interesting.

You have not said who is paying for the 2nd rebuild either.

Thanks for all the info.
The workshop that did the work is redoing it and the parts supplier is paying for a new headset, rings, oil etc.
The reason I had the engine overhauled is that I overheated the engine when my water pipe T pieces perished.
They want to keep the pistons the same and replace the rings with hastings three piece rings.
I will get some pics of the pistons and the rings and post them tomorrow.


The other thing I just remembered, after I got the car back I ran the engine in for the required 1000kms, I noticed the car was using oil all along.
I assumed this was part of the run in process, until The car started spluttering and miss fireing.
I then pulled all the plugs and discovered one of them was coated in oil sludge and carbon.
After a doing this once or twice I decided to dig a little deeper.
I then noticed that the OIL dipstick holder was bolted on the top hole instead of the bottom hole, this effectively meant when ever I topped up the oil I was over filling by almost a litre.
I proved this by draining out 4.5 litres of oil when the oil was on the bottom marker. ( the required amount of engine oil is 4.5 litres)
we assumed this must have been the reason for the continued oil usage.
a few thousand kilometers down the line I was still using oil and very occasionally fouling the same number 2 plug.
I was saying that surely it must be a valve stem seal or something like that. the mechanics said it is either the rings needed to be run in more or the three piece ring has lined up with the slot on the side of the piston as they thought it might.

Needless to say I am not convinced that putting another three piece oil ring into the engine is going to solve the problem whatever way you position the rings.
I have said that they should rather try and get the Nural pistons which are matched to the Goetz rings (all federal mogul) but they tell me that the AutoPower pistons they have used are exactly the same.

Excess oil will cause usage, but would not be permanent.
When you ran it in, did you just run gently for the whole 1000kms? Should make the engine work a little, often, but avoid lots of continuous light running as that can polish (glaze) the bores.
They need to measure the bores to ensure that they are round and parallel, not oval, tapered, or barrel shaped. If all ok, a quick glaze bust and fit new rings will hopefully fix it.