beechkid Posted December 19, 2010 Share Posted December 19, 2010 Holding a spark plug from a Ford 5.4 (late model), he stated his shop uses the following procedure: 1. Remove COPS 2. Loosen the spark plugs 1/8 of a turn max 3. Reinstall COPS 4. Start engine and shut off immediately 5. Remove COPS & plugs His theory..... by loosening the plugs then firing the engine, this burns the carbon off the end of the plugs that can get on the threads and of course cause the broken plug. Ok, Since I can't picture in my mind how this would work, unless by loosening the plugs a tad allows the "fire" to travel up, burning off the carbon. Ok techs- your thoughts? has anybody heard of this? Quote Link to comment Share on other sites More sharing options...
kenp77 Posted December 19, 2010 Share Posted December 19, 2010 Holding a spark plug from a Ford 5.4 (late model), he stated his shop uses the following procedure: 1. Remove COPS 2. Loosen the spark plugs 1/8 of a turn max 3. Reinstall COPS 4. Start engine and shut off immediately 5. Remove COPS & plugs His theory..... by loosening the plugs then firing the engine, this burns the carbon off the end of the plugs that can get on the threads and of course cause the broken plug. Ok, Since I can't picture in my mind how this would work, unless by loosening the plugs a tad allows the "fire" to travel up, burning off the carbon. Ok techs- your thoughts? has anybody heard of this? He's blowing smoke, u gotta show me a ford tech broke 7 of 8 on mine at 50K using the TSB Quote Link to comment Share on other sites More sharing options...
akirby Posted December 19, 2010 Share Posted December 19, 2010 Holding a spark plug from a Ford 5.4 (late model), he stated his shop uses the following procedure: 1. Remove COPS 2. Loosen the spark plugs 1/8 of a turn max 3. Reinstall COPS 4. Start engine and shut off immediately 5. Remove COPS & plugs His theory..... by loosening the plugs then firing the engine, this burns the carbon off the end of the plugs that can get on the threads and of course cause the broken plug. Ok, Since I can't picture in my mind how this would work, unless by loosening the plugs a tad allows the "fire" to travel up, burning off the carbon. Ok techs- your thoughts? has anybody heard of this? Actually he said it loosens the buildup and firing the engine blows it out the exhaust. Quote Link to comment Share on other sites More sharing options...
YT90SC Posted December 20, 2010 Share Posted December 20, 2010 ddddddddd Holding a spark plug from a Ford 5.4 (late model), he stated his shop uses the following procedure: 1. Remove COPS 2. Loosen the spark plugs 1/8 of a turn max 3. Reinstall COPS 4. Start engine and shut off immediately 5. Remove COPS & plugs His theory..... by loosening the plugs then firing the engine, this burns the carbon off the end of the plugs that can get on the threads and of course cause the broken plug. Ok, Since I can't picture in my mind how this would work, unless by loosening the plugs a tad allows the "fire" to travel up, burning off the carbon. Ok techs- your thoughts? has anybody heard of this? Might help but actually loosening the plug will rattle it up and down in the bore a bit, probably doing more good than any 'burning' the carbon would. A 3/8" impact wrench does a pretty good job too, better than the TSB. Quote Link to comment Share on other sites More sharing options...
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