May have a fix for this that doesn't require head removal, it wouldn't be under pressure as such so Ill make a new plate up to fit where the original
No you want to make sure it goes to ground as quick as possible. When doing a compression test it is recommended you short the plug wires to ground to
Today I started playing with the cooling system in my boat, on the AQ130 Volvo motor which is a B20 at the front of the head under the thermostat housing
Now your scaring me little don't want to ruin power pack .so I make sure it doesn't go to ground just pull it off, if it stalls the other coil is bad?