TJDave wrote:Lud wrote:Aren't those the modular V-10's that like to throw spark plugs?? I've seen 2 cases now where the plug threads gets stripped out and the plug is thrown from the engine.
If it does happen I guess it's easy to fix though. And even then it's still better than being seen driving a Tundra. j/k
I did a little reading on that subject before we bought our motorhome.Ford Triton V10 spark plug issue
3-4 threads were initally used for the spark plugs in the cylinder heads.
Initial Ford reaction was to change the torque procedure at the factory, apparently to reduce over- or under-torque. This was around the 2000 timeframe.
Late in the calendar-year 2000, Ford altered the head to include an "alignment feature" that reduced cross-threading or incorrect torque at the factory.
Late in the calendar-year 2002, Ford increased the number of threads in the head to approximately 7-8 threads, called "long-thread" heads.
From what I have seen on the 4.6, 5.4, and 6.8 engines is they usually only have a problem when the plugs are replaced improperly. Usually some one who is inexperienced doing it at home.
