Have a 1.8 156, and trying to figure out what's going on. I've had it for about 6 months and it's always been quite thirsty with oil. A couple of months ago it burnt a valve out, so took the plunge and had the head re-ported, 4 new valves etc. I was hoping that would solve the oil issue also, but i was wrong!
The car has 57k on it, and is going though about 1/2 a litre a week (driving it quite a bit at the moment). There are no leaks that i can detect, nor do I see any smoke out the exhaust (though it I give it a LOT of welly, i have noticed a puff).
Now this week I've noticed twice when the oil got low, I got a plume of blue smoke from under the bonnet. This I find confusing, as where under the bonnet is it coming from?
Anyone have any thoughts? I was suspicious it could be the rings, but not sure why that would cause smoke under the bonnet as opposed to the exhaust.