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HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

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Old 05-19-2013, 07:44 AM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Honda eliminated the factory lma's and replace them from spring lma's that are really expensive like over 200 for the whole set but they are great so replace them...
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Old 05-19-2013, 07:55 AM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

i bought the Skunk2 lma's this time around b/c i was a good price. i can't find anyone that's used them long term so i can't give any feedback

https://honda-tech.com/forums/performance-45/skunk2-b-series-vtec-lost-motion-assembly-3144304/

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Old 05-19-2013, 09:44 AM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Thanks!!
And I was wondering I just took my rocker arm rods out and at one end of both there is like half moon cut out I didn't relize until I had the second one out but I know the half moon on the back rod has to be for the distributor, should the other rod go in the sae way so the half moon is facing seloniod side? Sorry if its confusing
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Old 10-14-2013, 08:16 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Thank You for doing such a great write up.
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Old 06-06-2014, 09:30 AM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

the this new lmas can cause the engine to fluctuate ?

Last edited by gabrielsousa; 06-06-2014 at 11:46 AM.
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Old 08-15-2014, 01:37 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

The torque specs for the Rocker Shaft Plugs can not be 47ft-lbs, i tried and i only got to 35 before i thought it was gonna strip the threads. 4.7ft-lbs maybe haha i also seen 9ft-lbs somewhere
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Old 08-15-2014, 01:41 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

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Old 10-03-2015, 06:29 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Great write up. I just finished the job. My biggest fear was messing up timing but surpringly nailed it. The one issue im having it a louder tick that sounds like something is loose. I either installed one of the lmas wrong or forgot to tq something. Gonna open it up again and double check. Just wanted to see if anyone had similar experience after instal.

Edit:

Well I opened it up again, double checked my sequence and torque specs and everything is spot on. Went for a drive and after it warmed up, went WOT and VTEC engaged so im glad everything is working somewhat correctly. Do these new LMAs require a break in? Im not hearing the "psycho typewriter" but am hearing a loose bolt sound. After I got home it got quite so maybe they ARE breaking in. Will take it for a drive tomorrow and go from there.

Edit:

So I found the culprit. Apparently the belt has been flopping around loosely. I have gone through the FSM and tried to tension it properly but it just wont work. Im thinking the spring is loosing its worthy or I am doing something wrong. It was working well before. I will create a new Thread for this issue, thanks.

Last edited by spanishstud; 10-07-2015 at 08:10 PM.
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Old 10-08-2015, 07:52 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Great post. Really helpful. Thanks
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Old 04-06-2016, 01:24 PM
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Default Re: HOW TO: Install New Lost Motion Assemblies in a Vtec head (LMA)

Pick up a ef with b16a swap already done. Has a tick that I was told is the LMA.

Gonna attempt this with this guide instead of going to a shop. Already got the LMA and most of the equipment needed.

The only thing is I couldn't find a 2mm bolt? Am i missing something? the smallest bolt i could find is m4 bolts. when I ask the store clerk for 2mm bolt they look at me like i'm crazy or trying to build some super intricate bomb.

I want to have everything ready before i actually open the engine. can anyone tell me where to find 2mm bolts?
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Old 04-06-2016, 05:23 PM
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