Slow starter (diesel)

[Top drive]

i had exactly as geoff says .

first thing in the morning , reluctant to start

rest of the day would start fine

inlet valves were ALL held open when cold.

Respaced it and it doesnt even hesitate to start - it often catches before the first turn after a single heat.

If i was having to put throttle into a car to get it to start regardless of the weather id be questioning the condition of the motor. the only car i ever got into that state had two split piston crowns