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Home › Forums › Technical Discussion › 63 Mercury Monterey 390 FE Engine Question about Lifters › Reply To: 63 Mercury Monterey 390 FE Engine Question about Lifters
I contacted my nephew, Eddie Klein, who is quite familiar with these engines for help with this. The hydraulic lifters are not adjustable and will be noisy if the engine has been sitting for awhile. The “ticking” noise is not uncommon in this situation. He suggests using Rislone oil treatment and a lighter weight (thinner) oil for awhile. Assume you have changed the oil and filter.