One of the issues in aviation is the failure to communicate to engineers.....
1. Which engine is it we are talking about-°1 or °2?
2. How old is this engine?How many hours does it have?
3. How long has the problem been there?
4. What was changed/repaired before the problem occured?
5. What is the temperature/humidity/elevation for this problem?
6. What are the figures on start (battery voltage, Eng Oil Press, Eng Oil Temp)?