Originally posted by Djerms
[B]1. There's a very irritating noise (vibrating metal to metal sound...parang loose screw) after I release the clutch. Nawawala when I depress on it again, basta pasumpong sumpong. I also hear this when I engage the 1st to 2nd gear, pag pa-arangkada.
Clutch release bearing mounted by hammering it in. It is normal to have that sound if the mechanic does not know how to properly mount a bearing. This is normal and as long as the sound disappears when clutch pedal is depressed, that will last until you need clutch disc change.

Originally posted by Djerms
[B]2. At 3rd gear parang may wavy vibrations ang buong pick-up ko pang umaarangkada but when I reach 30kph, nawawala na.
4D56 engines have higher torque bend especially N/A units. Totope talaga ang makina pag every 10km/h per gear ang gamit mo, not enough power to transfer gears.