Originally Posted By: Schmoe
Then, I got to reading on the mysterious blowing spark plug problem and as soon as my wife gets back to work, I'm selling it.
Best method is preventative maintenance. Don't wait 100K to change the factory plugs, R&R plugs with a stone cold engine, torque to spec (11 ft-lbs w/o thread lubricant). If you use anti-seize use the proper nickel based anti-seize and adjust the torque setting accordingly. Also, make sure to keep pre-ignition/detonation in check. Good advice on any engine, but important to keeping the plugs in place with the 4-thread heads.
I've put hundreds of thousands of miles on 4-thread Modulars and have never had a spark plug blowout. Recognize the "weakness", act accordingly and it's just not an issue.
Then, I got to reading on the mysterious blowing spark plug problem and as soon as my wife gets back to work, I'm selling it.
Best method is preventative maintenance. Don't wait 100K to change the factory plugs, R&R plugs with a stone cold engine, torque to spec (11 ft-lbs w/o thread lubricant). If you use anti-seize use the proper nickel based anti-seize and adjust the torque setting accordingly. Also, make sure to keep pre-ignition/detonation in check. Good advice on any engine, but important to keeping the plugs in place with the 4-thread heads.
I've put hundreds of thousands of miles on 4-thread Modulars and have never had a spark plug blowout. Recognize the "weakness", act accordingly and it's just not an issue.
