just wondering because there has been an annoying rapping sound coming from my head. (1g b16a) i have titanium retainers and dual valve springs installed along with comp cams stage 2 camshafts. i've checked the valve lash several times and everything is within spec. so my question is... with the higher lift of these cams... could or can the LMA's go bad or become worn out?
Can a Lost Motion Assembly go bad?
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Yes, LMAs can go bad. If you want to do a quick check, press down on the LMAs through your followers, and make sure that none of them are sticking. When you go with larger cams, you generally want to get ITR LMAs. They have a bit more clearance for larger lobes. With cams that are about ITR sized, you can use stock LMAs- for larger cams, it's safer to use new ITR LMAs. I had a funny noise in my B16's head, and it turned out to be sticking LMAs.
If your LMAs are sticking and you don't want to spend cash buying new ones, you can try to refresh them by removing and soaking them in a tub of fresh engine oil overnight. Sometimes that helps them to loosen up.
If your LMAs are sticking and you don't want to spend cash buying new ones, you can try to refresh them by removing and soaking them in a tub of fresh engine oil overnight. Sometimes that helps them to loosen up.
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