Join Date: Mar 2011
Location: Wichita Falls, TX
Re: Engine making Tapping Noise
Someone will have better advice, but in the past these have all happened to me. I don't know anything about a mirage so this may not apply.
I would check:
Is the timing chain ticking against the timing cover.
If it doesn't have a chain, and has a belt and tensioner, the tensioner could have lost spring or hydraulic pressure and be letting the timing belt tick against the cover.
More likely but less wanted would be if a stud pulled out a little and is allowing your rocker arm to tap against the pushrod.
The rocker arm nut could be loose causing the rocker arm to tap.
The lifter could be flat, also causing the rocker arm to tap.
**Is what I would do is take a stethescope or if you don't have one, use a screw driver with the plastic handle up to your ear and the screwdriver on your engine. Move it around the engine to find where the tick is coming from and that would give you/us more idea of what we are dealing with.