Turbo leak
 

Is that normal for leaking out from those waste gate joint ?

No.

The oil is leaking out of either your turbo seals or coming from inside the motor. You are seeing it there because there is no seal or gasket where the wastegate pin goes through the manifold. If you pull off your downpipe you should see it in the turbine housing.

These factory turbos are not rebuildable, right?

Usually they are rebuildable

While technically you can rebuild the stock turbos, no reputable turbo rebuilder will do it anymore because they all fail. The extreme heat these units generate warp the housings so the new bearings and seals won't seat correctly, causing premature failure. Your options are to get a know working used set, a set of 99 twins, or best yet a set of BNRs. I can help you with any of these.

Set of BNR's is what I have my eyes set on as soon as my budget allows. That Silver FD you built has served as inspiration for me.

So it fine that the smoke leak from the pin right ? Those oil is wd40 I put on there for taking the 10 mm bolt for the heat shield

Thanks man. A lot of time and effort was put into that car with the mentality that we wanted to build and improve upon what Mazda intended, yet retain driveability and response. I am a BNR dealer so when you are ready hit me up for the best price.

There should be nothing leaking from there. As I said above, if you are having oil leak externally either the turbo seals are gone, you have an internal engine problem like an oil control ring failure, or other issue such as a failed pcv system. If you are talking about an exhaust leak, then there is a gasket behind that plate there.