Smoking Escort

Your failure is not the oil burning. Your fail is the high co, this is caused by a rich (petrol) mixture. Likely causes are often discussed on here but might be the coolant temperature sensor or just something silly like blocked breather.

Oil burning at high revs is likely to be: overfull of oil, blocked breather system, piston/rings. this is a really easy engine to do the rings on.

mrcheerful

If the piston rings where changed what else would need changing?

Is it worth doing the Oil scrapers and everything at the same time? What the approx cost? anybody know roghly?

Cheers MCN

If you want a reasonable life, it will probably need a re-bore, which of course means new pistons too. And check the crankshaft while you're at it. In other words, a full re-con. It would probably be simpler just to fit a secondhand engine.

compression

the rings come as a set with the oil control rings, about 40 quid plus gaskets 25 quid plus oil and filter 25 quid plus cambelt/tensioner 40 quid plus stretch bolts 15 quid plus your labour. you need to at least hone the bores while the top and bottom are off, if well worn then a rebore will be needed.

quite frequently though, the oil rings get very gummed up and let oil past, so the bores/pistons are not necessarily worn out.

mrcheerful

The car. By the time you'd paid out for a rebore, new pistons, rings and a full gasket set then even assuming you're donig the work yourself you've far exceeded what the car is worth. N reg Escorts at local auction have been struggling to get £200.

Don't go on the pistons kick, its not that and there are various reasons. If the engine was burning significant amounts oil the compression would be dire, and those compressions readings are not bad at all - I take it that

Run with the something silly idea.

By the way, apart from wearing out the engine as if you were driving it to the scrap yard, what are doing up at level of RPM anyway?

compression