Pw80 oil coming out the exhaust gasket

You need to determine if it is your oil pan, oil sender switch, oil filter, etc. dripping oil onto your exhaust causing the smoke, or if it is coming out of the exhaust itself. If it is dripping onto the exhaust, deal with sealing the affected area. (new oil pan gasket, sender switch, etc.) If coming out of the exhaust, indicated worn piston rings or valve seals.

depends on the head shape if there a small ridge on it then it goes up cheers

Take it back and have the heads redone. Sounds like they left oil seals out or they didn't find a crack in the other head. It is very unusuall for oil to come from the exhaust and not smoke. And if the oil is coming from the exhaust gasket ,then the mechanic also didn't do his job right. This gasket should be tight, no air or anyhting else should be coming from between the engine and exhaust manifold. The never timed it is impossible, as it has to be timed to run. I would probably take it to anoher shop, explain what has gone on, get an estimate to fix it. And demand the other shop pay for it.

sounds like blown head gasket or cracked head allowing coolant into exhaust ports. No water in the oil just means it didnt affect water getting into the oil ports. So the breach is between the water ports and the exhaust ports. It doesnt really matter. Its till the head gasket or the head itself. sorry..

what colour smoke ?? blue smoke is oil ,worn rings or valve guides ,or oil seeping into cylinder where oil passes through head gasket to lubricate cam ,white smoke is water ,head gasket ? black smoke is excess fuel

If you are also losing coolant it is likely a blown exhaust gasket. The white smoke is a result of coolant leaking through the exhaust gasket and and being forced out your tailpipe. You can check to see if the head gasket is blown by removing your oil fill cap and checking the oil for a milky brown color. I hope this was helpful.