Spark Plug Torque Misconceptions - Honda Says...
08-17-2016, 10:02 AM
#11
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24 ft-lbs on every car I do.
Torque test broke the threaded portion off the bottom of the spark plug at 80 ft-lbs. No damage to the head at all.
24 ft-lbs is beyond safe.
Torque test broke the threaded portion off the bottom of the spark plug at 80 ft-lbs. No damage to the head at all.
24 ft-lbs is beyond safe.
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twohoos (12-10-2019)
08-17-2016, 01:34 PM
#12
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More important, probably, is to have a decent torque wrench. Be sure you unload it before storage.
08-17-2016, 03:00 PM
#13
Would you say same thing for both cold n hot engines, cause if I am ever pro active and able to swap a set the next day on a cold engine yes I go higher and get that crush washer good n tight.
But as usual something comes up like a bug up my wahoo and feel like doing maintenance and then I go pick them up and do them on a hot engine, but since I was young I was told aluminum when hot expands and becomes softer n such like that so I only do hand tight and then roughly a 1/4 if there used, and if I'm checking them hand tight and then usually almost a half if new to crush washer.
Hell sometimes I'll go hand tight and let them adjust to temp for a few minutes, I'm an over thinker it's a curse but with a hot engine I'm always super paranoid.
But as usual something comes up like a bug up my wahoo and feel like doing maintenance and then I go pick them up and do them on a hot engine, but since I was young I was told aluminum when hot expands and becomes softer n such like that so I only do hand tight and then roughly a 1/4 if there used, and if I'm checking them hand tight and then usually almost a half if new to crush washer.
Hell sometimes I'll go hand tight and let them adjust to temp for a few minutes, I'm an over thinker it's a curse but with a hot engine I'm always super paranoid.
08-18-2016, 10:07 AM
#14
Thread Starter
08-18-2016, 10:08 AM
#15
Thread Starter
08-18-2016, 10:09 AM
#16
Thread Starter
Wow! It can take a lot of torque then. So basically at 24 was the plug tight to the point you could not turn it anymore without using more force?
08-18-2016, 10:09 AM
#17
Thread Starter
Honda dealers were SUPPOSED to put in a little sticker with the new torque figures during service/TSB/recalls years ago and punch a mark above your VIN in your owners manual, however.
Read the old threads on the spark plugs backing out and ruining engines. Stick to 21-24 ft-lb.
Read the old threads on the spark plugs backing out and ruining engines. Stick to 21-24 ft-lb.
08-18-2016, 10:13 AM
#18
Thread Starter
Would you say same thing for both cold n hot engines, cause if I am ever pro active and able to swap a set the next day on a cold engine yes I go higher and get that crush washer good n tight.
But as usual something comes up like a bug up my wahoo and feel like doing maintenance and then I go pick them up and do them on a hot engine, but since I was young I was told aluminum when hot expands and becomes softer n such like that so I only do hand tight and then roughly a 1/4 if there used, and if I'm checking them hand tight and then usually almost a half if new to crush washer.
Hell sometimes I'll go hand tight and let them adjust to temp for a few minutes, I'm an over thinker it's a curse but with a hot engine I'm always super paranoid.
But as usual something comes up like a bug up my wahoo and feel like doing maintenance and then I go pick them up and do them on a hot engine, but since I was young I was told aluminum when hot expands and becomes softer n such like that so I only do hand tight and then roughly a 1/4 if there used, and if I'm checking them hand tight and then usually almost a half if new to crush washer.
Hell sometimes I'll go hand tight and let them adjust to temp for a few minutes, I'm an over thinker it's a curse but with a hot engine I'm always super paranoid.
08-18-2016, 01:51 PM
#19
Originally Posted by RolanTHUNDER
Wow! It can take a lot of torque then. So basically at 24 was the plug tight to the point you could not turn it anymore without using more force?
24 is the amount that it would take more force than 24 to turn it anymore. Its not magic, its an amount of force. Yiu could apply more, you could apply less. Less would be bad. A lot more could also be bad.
If you are trying to figure out how to torque them without a torque wrench, jist buy a TW from HF. They are on sale often for like $10. Pretty accurate too.
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