RB25DET Dying after starting - white smoke

[Tomak]

Hello,

I have some issues with my R33 lately.

All the symptoms:

- Engine knockings under acceleration on higher rpm

- High exhaust temperatures EGT reached over 980 lately

- White smoke coming from exhaust pipe when i start the motor on cold and dying on idle when i release gas pedal. Actually cant reach over 3000rpm on cold and it sounds weird like working on 4-5 cylinders not 6. 

- The car died on me 7 days ago also first time and could not start it. so i changed all the spark plugs for new ones and the car was starting like new for 3 days. After another 3 days of driving on new spark plugs the same shit happend. Cant start the motor again from yesterday.

- Checked today the spark plugs fire with all coils and put different battery. So from ignition it looks ok. 

Is my new set of spark plugs cooked again from high EGT or motor is dying, piston rods bad compression? I havent checked that yet.

Any suggestions? 

 

[tridentt150v]

Blown head gasket.  White smoke is coolant.

[Ben C34]

What did the plugs look like?

An egt gauge is not particularly useful...

[Tomak]

Plugs are in good conditiont, i put new set 3 days ago and check the spark and all 6 plugs.  I checked already the coolant and its full to the top so its not burning the coolant.

 

[tridentt150v]

You said white smoke.

white=coolant, blue=oil, black=fuel

Check that your overflow bottle level is the same as well.