What are LMA's

[HatchSpeeD]

I've been meaning to ask what are lost motion assemblies. Can anyone explain to me what they do, how they work, and maybe what they look like. Thanks.

 

[phunky.buddha]

Basically valve springs for the VTEC followers in your valvetrain. The normal intake/exhaust followers have valves and valve springs to press against so they're not flopping around all the time, but the VTEC followers don't. The LMAs help to control their movement.

 

[phunky.buddha]

Here- I took some pictures a year ago when I was swapping out my LMAs. I went ahead and marked one of them up real quick so you can see exactly where the LMAs sit and what they look like:

Ok, I turned this post into an article in the "General Tech Articles" section.

https://hondaswap.com/forums/index.php?showtopic=47985