C70: Compression reading and oil

[Asherloperly]

Hello everyone,

So I think my c70 block has reached end of life it is a 2004 and has done 150K the previous owner was not too hot with oil changes and servicing, however the owner before that has full dealer history.

I was getting a messy oil leak around the pulleys so:

1. Replaced the cam and crank seals
2. replaced all belts
3. replaced entire PCV system
4. Dropped oil sum cleaned and replaced seals (including pick up) PCV return was solid blocked
5. Replaced oil pump seals

when I started the car, it starts and runs beautifully, until it gets to temperature then I get a oil drip (continuous at the crank)....

I have done a compression test (cold) results:

1. 130
2. 150
3. 175
4. 150
5. 130

Number 3 does have a considerable amount of oil on the plug when I pulled it. I have not yet done a leak down. I know I should have done this before the other work but the PCV glove test was positive, so assumed it was a clogged PCV system had pushed the seals.

The glove test is still slightly positive and a little smoke from the dipstick but even with the oil filler cap off and the dipstick out I still get the leak....

So is this the Piston rings and a blow by issue? a small amount of oil on the head of the engine when the covers are removed also.

Hope you can help and thanks for reading.