Series 3 blowing blueish smoke

[series3109]

Hi, I am looking for some help and insight. I just had my valves adjusted, new carb (Weber), timing set and the truck ran flawlessly for about 500 miles.
Then one day coming home, I saw that it was blowing blueish white smoke from the exhaust.
The performance has been about the same. No difference in acceleration or cruising. But a lot of smoke when starting, sitting at a light or stop sign. Burning a little more oil than what I had been, which was none for the first 500 miles.
I pulled the plugs. All 4 are soaked in oil. All identical.
Is this a cylinder head issue? I have replaced the diaphragm in the PCV valve. That seemed to have cured the problem briefly. Then it started smoking again on the next drive.
I have yet to do a compression or leak down test. Are either or both better recommended?
Thank you all for your help here.
Dan

[fly cubs]

Dan-

Have you tried running without your oil-bath air filter? It could be pulling in oil from there. If that's not it, I'd try the compression test to see if you have a ring issue.

[cedryck]

Blue means oil. Yes compression check, rings, valves, how is head gasket?

[slowpatina]

Hi, I am looking for some help and insight. I just had my valves adjusted, new carb (Weber), timing set and the truck ran flawlessly for about 500 miles.
Then one day coming home, I saw that it was blowing blueish white smoke from the exhaust.
The performance has been about the same. No difference in acceleration or cruising. But a lot of smoke when starting, sitting at a light or stop sign. Burning a little more oil than what I had been, which was none for the first 500 miles.
I pulled the plugs. All 4 are soaked in oil. All identical.
Is this a cylinder head issue? I have replaced the diaphragm in the PCV valve. That seemed to have cured the problem briefly. Then it started smoking again on the next drive.
I have yet to do a compression or leak down test. Are either or both better recommended?
Thank you all for your help here.
Dan

Curious if you've solved your blue smoke issue... did you find the culprit?

[charles1943]

Blue smoke, as mentioned, is oil but the "white" part genreally means a water leak....cracked head, leaking head gasket

[biffidum]

Blue smoke, as mentioned, is oil but the "white" part generally means a water leak....cracked head, leaking head gasket

Agreed.

9 times out of ten it is the valve guide seals. These are easy enough to change. You could replace the head gasket when you have the head off and cover both scenarios.