Correct Gap for Spark Plugs
I have been reading on a couple of RV sites and there are 3 different answers. I 'm installing new plugs & wires on a Vortec 8.1 engine. My book says they should be gaped as per engine specs. I can...
Forum Discussion
Chris Bryant wrote:
Not an authoritative answer, but I cannot see a modern ignition system using a .045 gap, what my 87 460 with pretty basic ignition used. Bigger gap, fatter spark. These coil on plug systems can surely fire an .060 gap.
Or, maybe I'm all wet, lol.
My 2012 has coil on plug and they are set at .040 and when they wear to a certain point you replace them. But that said they should last by the manual till 80 to 100000. Not there yet. When I do check them they will be replaced due to the tear down to get to them.
