The smell seem to come from the exhaust.
What could cause this?
Valve seals?

 

Any number of things can cause it. Worn valve guides or seals, bad piston rings, leaking intake manifold gasket, worn out PVC valve, to name a few. A leak down test can tell you if the valves or rings are the source if you see a lot of smoke with the oil cap off while it is running.

 

What is the way to find out if the leak is from the rings or the valves?
I just don't remember.
Thanks.

 

Well there is the backyard mechanic way, do a compression check like normal and write all the #'s down. Go back and do it again but this time add some oil to the cylinders. If the pressure goes up then the rings are bad. A leak down test is more relieable though.

 

That's it!!
Thanks!
If I had a heated garage I would do the compression test now but I don't, so I'll wait for spring time weather to come.