Give it a compression or leak down test. Torque the had bolt properly while the engine is cool.the smoke can be a leaking injector. Head steam holes should be cleared.
It may be several different issues. Black smoke is generally caused by the engine running rich, there is a possibility that a vacuum line was not reconnected and is causing a leak, or perhaps one of the sensors did not get connected properly. Check what codes are present, they will help to narrow down the issue. The overheating could be caused due to an air bubble in the system if it was not filled properly. I would recommend checking all of the connections and making sure there is no air bubble before pulling it apart again to find out whether or not you installed the head gasket correctly.
There's a better chance you have the gasket on wrong although improper torque could do it as well but in either case the head will have to come off again. I hope this helps. Take care.
SOURCE: 1993 TOYOTA TERCEL 1500cc Valve Seals Replaced now smokes much worse
You either have had the wrong valve seals installed, they are physically missing, or the valves are incorrect (too loose in the guides/stem too thin). The rocker arm seals will not contribute to your issue. If it did not have the oil smoke before you took the head off, the issue is with whatever the machine shop did. Valve seals have to fit TIGHT, or oil will go down the valve stem into the intake.
Take the head back to the machine shop & tell them to fix it. For free.
SOURCE: White smoke coming out of exhaust even when engine is warmed up.
on the 3.8 ussaualy not the head gasket but the upper intake gasket . antifreeze leaks inside intake and into the cylinder. very common. the new gaskets are much thicker.or the plastic plenum the black plastic part on top of the engine goes bad around the water inlet and need to be replaced . when i do either job itell the person to replace both at same time saves money and headaches in the near future. hopes this helps .....and cost for a shop to do this $1100 to $1500
SOURCE: white smoke or steam coming out of exhaust pipe,
Its funny that everyone has solved the problem without any answers to critical questions. In this case, everyone is right and everyone is wrong. ONLY careful testing and observation will determine if there is an actual problem. I do not solve problems just to be first. Even in a hands-on situation I refuse to jump to conclusions before testing, otherwise you run the risk of at best, "chasing your tail" or at worst, tearing into a perfectly good engine to prove nothing!!!
Happy New Year!!!!
SOURCE: Can head gasket leak without the vehicle overheating?
It could be a cracked head or a cracked block too. You need to have a compression check done and analyze your fluids carefully.
SOURCE: hi there my mini keeps overheating.i have changed
It could be signs of early head gasket failure. I had a subaroo do the same thing, ran great but would boil out water, then it finally blew. Had to replace the engine. It was cheaper than doing the heads. There was no signs of white smoke, no water in oil, just ran hot, some of the time. I don't know if a compression check would help, but what I would do is get it to a radiator shop, they will tell you more than anybody.
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