I have just replaced the head gasket on a 1275 Metro engine and when refilling with oil the rocker cover is filling up and it is taking about half an hour for it to drain down.
It has helped to turn the engine over by hand but is still draining very slowly. Also, it was very cold last night so the oil was very thick.
Is this normal?
The car has been off the road for nearly 5 years but prior to that I had replaced the oil several times before and don’t remember this being an issue.