Originally Posted by barry123400

As the head warms up I suspect the valve clearances actually become less as the valve stems expand. Especially the exhaust valves. Check the clearances and adjust where required. Some of these cars have not had this normal maintenance requirement performed in an excessivly long time. Should be checked every 15k and if seriously out the first time you do them. Check them again a thousand miles later.


I too suspect your issue is going to be injector related though. They are supposed to be checked on a hundred thousand mile cycle. Again many are never done until issues like you have raise their head. Doing the valve adjustment and getting the injectors pop calibrated etc should make the car run much better.


I personally would let the engine idle until the offensive smoke appears. Loosen one injector line at a time at the injector and see what one stops the smoke. You may have to wait a little for the cylinder to clear itself before tightning the line back up and moving to the next injector in line. That way you would know what injector was the prime offender before extracting them . This of course only after a valve clearance check.