Valve making ticking noise

[JessZ]

My vavles are ajusted and there is still a tapping noise. Could my cam be getting tired, or could weak springs be the problem? Thanks.

[2126]

They should make a little noise....if not they are likey adjusted too tight. When you've finished adjusting all the valves it's always a good practice to RECHECK all the clearances again before buttoning it back up. There is always a slight change that occurs to the adjustment when the lock nut is torqued down....just enough thread stretch to change the clearance you were trying to achieve. Also to be sure you are using the right set of clearances, as there are ones for doing a cold adjustment as well as a hot adjustment. Like the old saying goes (sort of!)..."Measure twice, cut once." Hope this helps out a bit.

[JMortensen]

Weak springs will float at high rpms, not tick at low rpms. I would expect the cam wearing should be visible if it's really an issue, but regardless if the valves are adjusted then there shouldn't be any additional noise because the rocker should still follow the cam.

 

I have heard of the lash pads getting worn and causing a tick, but I haven't seen it myself. Think I read that here, so you might be able to search and find info, or you could pull a lash pad and see if it looks OK.

 

Just remember the old adage "Quiet valves burn." When the valve closes the heat goes out of the valve head into the valve seat. If you adjust them with too little clearance to try and make them quieter you can get to the point where they can't transfer the heat, then burn a valve. If the noise is really abnormal take care of it. If it's just annoying to hear the valves then learn to love your OLD car.