1989 Acura Legend tapping noises in engine

1989 ACURA LEGEND
18,000 MILES • 6 CYL • FWD • AUTOMATIC
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WELDERMAN406
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What is causing the constant tapping noise in the top of my engine and how do i fix it? Thank you, Kenny.
Jun 7, 2009 at 6:40 PM
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MHPAUTOS
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Hi there,

This will probably be a faulty hydraulic lifter, you can try using an engine flush as this may wash out some of the carbon that can build up in the hydraulic lash adjuster, start here.

Mark (mhpautos)
Jun 7, 2009 at 6:54 PM
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WELDERMAN406
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I flushed the engine twice with engine flush and it still is tapping. I also changed the oil twice and used oil additives, but nothing works. What can I do to fix this problem and will it hurt the engine to drive it this way?
Jun 7, 2009 at 7:29 PM
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MHPAUTOS
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Hi there, you will need to get the faulty lash adjuster replaced, this ids not a huge job, the rocker gear needs to be lifted to access it, you are doing some damage to the rocker & the valve stem, short term not a real issue, but i would be getting it fixed sooner rather than later.

Mark (mhpautos)
Jun 8, 2009 at 12:30 AM