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I'm going to replace my valve cover gaskets on my 94 Altima in the next week or two, and have heard that Nissan had a Service Bulletin that said to remove the small guide that sits just above the two cam sprockets to reduce noise. While I have the valve cover off, I would like to remove it if that’s the thing to do. Also, I heard this upper cam chain guide can break with high mileage and cause other damage.
I'm assuming its not really needed if Nissan said to remove it. Or was there a replacement guide for this location? Can someone confirm that this Nissan Service Bulletin is correct to say remove it completely?
I'm assuming its not really needed if Nissan said to remove it. Or was there a replacement guide for this location? Can someone confirm that this Nissan Service Bulletin is correct to say remove it completely?