I'm starting a thread on this item since it appears that I'll be needing a set of these babies asap and you should know more about it too! 
So, I did my valve adjustment TWICE now on my newly built engine and I can't get rid of the small clatter in valve train so I called up my boy Bisi and double checked my lash setting on the intake & exhaust rocker arm assembly. I'm running .010 exhaust & .009 intake which is apparently fine. So, what gives - he text me back saying it could only be the factory Loss Adjustment Assemblies. Call me whatever but I never heard of the name and as I come to find - it's the FOUR small tensioned springs located under the rocker arm assembly. Pictures to come later... sorry.
Anyways, Bisi has been tied up in meetings tonight but I figured he will let me know tomorrow what options i have on replacing these things since I hate the noise valve train sound and I'm sure will/is affecting performance somewhere. Long story short as of now, these things can wear and cause your engine to sound bad - some have confused it for rod knock type noise so if you know what that is - it's nothing nice.
Tomorrow I will update you guys with photos, part numbers and whether or not I have a choice between an aftermarket performance or OEM part. Also, the function of these 4 springs for VTEC motors. I Googled this thing for an F23A1 and came up empty handed so I hope this helps a few out there along the way. It sure is News to me!
Anyone got info to contribute... feel free!
UPDATE: 06/11/2010
First pic show location of LMA spring. Second shows LMA spring removed and new parts in bag.
As you can see from the first picture, the rocker arm assembly needs to be moved up in order to have enough room to remove LMA springs. This head I'm using as sample had no camshaft so its easy to do - as mentioned, if your motor is in the car assembled, you'll need to remove timing belt in order to loosen cam gear and remove rocker arm assembly.
So, I did my valve adjustment TWICE now on my newly built engine and I can't get rid of the small clatter in valve train so I called up my boy Bisi and double checked my lash setting on the intake & exhaust rocker arm assembly. I'm running .010 exhaust & .009 intake which is apparently fine. So, what gives - he text me back saying it could only be the factory Loss Adjustment Assemblies. Call me whatever but I never heard of the name and as I come to find - it's the FOUR small tensioned springs located under the rocker arm assembly. Pictures to come later... sorry.
Anyways, Bisi has been tied up in meetings tonight but I figured he will let me know tomorrow what options i have on replacing these things since I hate the noise valve train sound and I'm sure will/is affecting performance somewhere. Long story short as of now, these things can wear and cause your engine to sound bad - some have confused it for rod knock type noise so if you know what that is - it's nothing nice.
Tomorrow I will update you guys with photos, part numbers and whether or not I have a choice between an aftermarket performance or OEM part. Also, the function of these 4 springs for VTEC motors. I Googled this thing for an F23A1 and came up empty handed so I hope this helps a few out there along the way. It sure is News to me!
Anyone got info to contribute... feel free!
UPDATE: 06/11/2010
First pic show location of LMA spring. Second shows LMA spring removed and new parts in bag.
As you can see from the first picture, the rocker arm assembly needs to be moved up in order to have enough room to remove LMA springs. This head I'm using as sample had no camshaft so its easy to do - as mentioned, if your motor is in the car assembled, you'll need to remove timing belt in order to loosen cam gear and remove rocker arm assembly.
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