Does the F20C have lifters or Lost Motion Assemb.
#1
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Does the F20C have lifters or Lost Motion Assemb.
Just wondering since the NSX has these LMAs in place of lifters, I was wondering whether the same goes for the F20C.....Do all the Vtec motors have these?
#2
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Originally posted by Saint_Spinner
Just wondering since the NSX has these LMAs in place of lifters, I was wondering whether the same goes for the F20C.....Do all the Vtec motors have these?
Just wondering since the NSX has these LMAs in place of lifters, I was wondering whether the same goes for the F20C.....Do all the Vtec motors have these?
Drive Safe,
Steve R.
#3
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Well...theyre like lifters or tappets. I got the definition from Dali Racing for the NSX engine...."They live under the secondary rockers that are the Vtec rockers. These are the rockers that ride freely until the pins slide through the vtec engagemnent. The Lost Motion Assemblies keep the secondary rockers on the cam lobe while they aren't in use. When vtec engages, the secondary rockers are kept up by the tension of the valve springs."
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Thanks folks! That makes sense. I hadn't considered what the secondary rocker arms are doing when they're not being used. It amazes me that everything connects and disconnects reliably as the VTEC cycles anyway.
Drive Safe,
Steve R.
Drive Safe,
Steve R.
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#9
Originally posted by visi0n
the role of the LMA is to keep the secondary rocker from flailing around and damaging the rest of the head.
the role of the LMA is to keep the secondary rocker from flailing around and damaging the rest of the head.