by geeves » Tue Oct 20, 2015 2:38 pm
Several bits to the cold start system and its different between the 2.8 and 3.1.
Both have a butterfly in the exhaust which aids a fast warm up On both the temp of the coolant has to be below 5C and the engine heat switch operated to work. If this jams it can cause low power and possibly smoke but warm up wont clear it
The 2.8 has a simple device that advances the timing below 5C which generally works well but just above this it will smoke and play up for the first few minutes of running. It also changes the glow plugs from 0.5 sec to 30 sec
The 3.1 is similar but works partially from a higher temp With glow plug timing and advance adjusted to suit. Most 3.1s will always start cleanly but you must wait for the glow plug light to go out.
My Wizard would always miss when cold but would come right after 20 or so seconds.I put up with it. The pump was rebuilt after it started to leak and the miss is gone
Sanding your knuckles before starting work can help. That way you cant skin them