Problem by starting Toyota Corolla E11 2.0 Diesel

Good morning, my problem is that when starting it cold, at first, but as the car hot, it appears and try to tear it out, it takes me and on occasions it usually expels smoke (white-ris) through the exhaust tube.

Thank you

I did not understand you very well you have a hard time starting it changes the incondent spark plugs or candles, if it costs you all day let us know and see what happens.

I tell you better, when the car is cold it starts perfectly.
But the problem is when it is hot, it is hard for you to start, many times I start it to the second attempt and if it is the first one it is after a good time. Sometimes when starting it, hot, loose by the grayish smoke exhaust tube.
I have proven, the incondent spark plugs, which are fine, the starter engine changed the brushes, contacts, I left it as new.

Thank you so much

Hello, by chance did not change the distribution strap? It may not be good or otherwise the pump registration may be run, I am sure that it is a problem, ensure that the pump does not run from the point or is the progress that has problems.
A hug and luck

It is usually true that problem when it is hot it is as an oil pump problem when they are always the injectors if it is well in cold and hot it costs hot compretion, just in case it does not go to be a bad ring.