I just recently rebuilt my b16, and it has started to smoke on deceleration. It mostly only smokes when theres no load on the motor and while rapidly slowing down. I rebuilt the motor with new rings and everything, and put the motor in, i was very easy on the motor breakin it in. And i still havent driven it really hard since its been broken in. The only thing i didnt replace was the valve stem seals. Could that be causeing the smoke?

 

Valve seals... replace em.

 

yes valve seals will definently do it.

 

Tea valve seals, not that this helps but I used to have bad valve seals on another motor, and I used the marvel mystery oil additive and I swear to god it worked, no more smoke. A lot of people dont like using this kinda stuff but that works well, I know it works for me, and it works for a lot of my freinds who had the same problem. I would suggest it.