Engine Noise like loose rocker

I bought a used 2000 Galant.
I have to repair all the front suspension parts, Tie rods, Bearing Assembly new breaks and the reuild axil assembly. Then I have all new tires and allignment which got rid of any strange sound from the running of the car. It glides beautifully.
Problem is that now I can hear other small noises comming from other places for example engine in cold make noise like one or two rockers are loose in the engine. Sometime the noise go away when engine gets hot. Some time noise go away and then come back.
I have my first oil change and thinking if i might put that high quality PINZOIL in it may be that will take care of that noise.
Anyone have then same kind of experience are wellcome to post a reply I will appriciat.

If it is a ticking sound like tapets, then it is your hydraulic lifters. A good flush when you change the oil should help. Hydraulic lifters are known for making ticking noises in Mitsy engines, but it is not really a worry for the longevity of the engine.

I think you are right because this time I bought that synthatic oil and changed it by my self. Noise went away as soon as I started engine and then after some time came back. Other thing is that some time it is loud and some time it go away.
Next time I will try to use some engine flush product or will take it to a profesional to flush it.
Thanks for the input.

I have put in the Pinzoil which also cleans I also tried the formula from autozone to clean the engine build up then I took it out and put this new oil which was 10w 40w which is thicker then recomended 5w 30w i guess. I will see if it improves in a week.

Check out this link for this problem, I have done this and noise is lesser then before. and I haev only done it like 10 times.
http://www.4x4wire.com/mitsubishi/tech/minutemods/lifter_noise/

If it is a ticking sound like tapets, then it is your hydraulic lifters. A good flush when you change the oil should help. Hydraulic lifters are known for making ticking noises in Mitsy engines, but it is not really a worry for the longevity of the engine.
i have 2001 galant es 2.4 it knocks after warm up then goes away a little.dealer replaced timeing belt did not work

I got it fixed.
I bought the gas kit for the head and 4 seals for the plugs part FEL-PRO VS50562R $ 14.62
then Open the head I haVe bought 1998 hydralic lifter too incase If i found out the problem lifter.
What I found out was that it has built in lash adgusters in the rocker. And they all haVe tiny little holes on top for oil flow, i mean really tiny, I took a nedle and tried to clean all the holes and then I cahnged the gaskit and all four plug seals.
I then bought new platinum plugs 3$ each, changed them all and closed the head.
First day oice was there but in 2 days all oice is gone i make some noise in the mornign when I start liek it is running dry but then it smotth out.
Oh one more then when i cleaned the rocker arms i hae got a syringe and pumped the oil in the rocker head.
Good luck to other who want to do the same.

Here are the pictures
http://azakram.tripod.com/galant.htm