One set screw would be to hold the hub to the shaft ,that would be real tight an should not be touched ,
an is the screw that would be located in the center inline with the shaft!
The screw that needs to be adjusted will turn easy and is in an offset location next to the screw that is
in the...
If it was sizzling ,then it is hot an if it gives a gurgle sound after you shut it off ,than its definitely too hot!
I point the laser beam right between the glow plug an the fin of the head just as long as it isnt directly
on the glow plug but not in the fin of the head!
But 220 & 240 is not...