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02-22-2009, 04:06 PM | #16 | |
AF Newbie
Join Date: Feb 2009
Location: naugatuck, Connecticut
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Re: HEMI Multi displacement
what year did the mds come out in the ram 1500 hemi?
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03-11-2009, 12:18 AM | #17 | |
AF Enthusiast
Join Date: Oct 2005
Location: St.Louis, Missouri
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Re: HEMI Multi displacement
They use a solenoid on the specified lifters they want to deactivate. When the solenoid is activated, it dumps oil pressure to the lifter so the lifter won't open the valve. Your block has to be made for the system as does your computer.
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08-02-2010, 02:25 AM | #18 | |
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Join Date: Aug 2010
Location: la quinta, California
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Re: HEMI Multi displacement
Good explanation Neon but I am wondering how pressure is prevented from building in the cylinder that should be off.
Heres how it works, when the valves for those particular cylinders are closed, the exhaust gas is still stuck in there from the previous ''burn'' (this is done on purpose).... as the ''non-working'' pistons move up they compress the exhaust gases, but since the valves are closed this creates something like an ''air spring''. When the exhaust gas is compressed during the piston’s upstroke, then push down on the piston during its downstroke. The compression and decompression of the trapped exhaust gasses have an equalizing effect – overall, there is virtually no extra load on the engine. I am wondering what happens to carbon left in these cylinders. We all know that late bucket of chicken run never hurt. 600th hundred buckets uh oh new pair of jean mamma |
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