Cylinder deactivation: could it cause problems in the long run?
#1
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Cylinder deactivation: could it cause problems in the long run?
The thought just occurred to me. I'm sure other people have thought of this as well. Say you have a 6 cyl car, and 3 deactivate. Is this going to be a problem after say, 10 years, because of uneven cylinder wear and deposits since the same 3 cylinders always deactivate? Will the engine feel unbalanced after a long long time?
#2
Senior Moderator
as far as i know the same 3 dont always deactivate,and even if they did they wouldnt get any deposit build ups, since no fuel or spark is going into them, just air in the chaimber. and im sure its been taken into consideration, (especially by honda)
#3
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Originally Posted by fsttyms1
as far as i know the same 3 dont always deactivate,and even if they did they wouldnt get any deposit build ups, since no fuel or spark is going into them, just air in the chaimber. and im sure its been taken into consideration, (especially by honda)
#4
Senior Moderator
it may be the same 3 all the time but like i said, since fuel and spark are cut off there shouldnt be any deposit build ups. the piston is still going up and down scrubbing the cyl walls just with out spark. if any thing the other 3 would have less life, but im sure its negligable
#5
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Originally Posted by fsttyms1
it may be the same 3 all the time but like i said, since fuel and spark are cut off there shouldnt be any deposit build ups. the piston is still going up and down scrubbing the cyl walls just with out spark. if any thing the other 3 would have less life, but im sure its negligable
#7
Suzuka Master
Wouldn't there be a greater load - and consequently more wear - on those cylinders that aren't deactivated than if none of the cylinders were deactivated. It would seem that the engine would wear more slowly if all cylinders participated equally and shared the load imposed on the engine equally?
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#8
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You bring up a good point. If the same bank gets turned off each time, then they are going to wear differently. Depends on how much highway driving you do...one bank could have 20-30% more wear than the other...possibly making the engine lopsided as well as bringing up other problems.
It boggles the mind!
It boggles the mind!
#9
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Originally Posted by AcuraFan
You bring up a good point. If the same bank gets turned off each time, then they are going to wear differently. Depends on how much highway driving you do...one bank could have 20-30% more wear than the other...possibly making the engine lopsided as well as bringing up other problems.
It boggles the mind!
It boggles the mind!
#10
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Originally Posted by SpeedyV6
Wouldn't there be a greater load - and consequently more wear - on those cylinders that aren't deactivated than if none of the cylinders were deactivated. It would seem that the engine would wear more slowly if all cylinders participated equally and shared the load imposed on the engine equally?
Ugh! Why am I so damn slow??? You beat me to it!
#11
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Originally Posted by SpeedyV6
Wouldn't there be a greater load - and consequently more wear - on those cylinders that aren't deactivated than if none of the cylinders were deactivated. It would seem that the engine would wear more slowly if all cylinders participated equally and shared the load imposed on the engine equally?
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