- Nov 12, 2003
- central, ga
- Dominator 582
- Total Flight Time
Tim, on the Hirth the spark plugs are so close together that when you drill them out for the helicoil, there is NO meat between the plugs to hold the helicoil.Perhaps Hirth owners should consider this as preventive maintenance as well?
you will end up with a figure 8 hole in the cyl head.
That is why Hirth owners do not, cannot helicoil the plugs.