I picked up a used 2008 v50 a few weeks back, drove it home and swapped some fluids and did an oil change. After i did the oil change it seems that one or two of the lifters have began tapping. My understanding is that they are hydraulic and there is no adjustment to be made to them or the rocker arms. I am not super familiar with the car but i havent wanted to drive it until i get this figured out, it didnt sound like this before the oil change. Can anyone steer me in the right direction as far as a repair?? Thank you

 

They are not hydraulic.
Did you use the correct viscosity?

 

Yes i believe it was 5w-30 it called for. So what type of valve set up is it? Is a shim under bucket?

 

The tappets come in different sizes to set valve clearance.

 

How hard is it to replace those? Do u need any specialty tools?

 

hard and special tools - yes

 

It's highly unlikely to be a valve adjustment.

 

I agree ES6T - only time we have to play with the lifter adjustment is after a head rebuild - kind of a pain at that! The hydraulic lifters were way easier ...

 

So ES6T what do u think it is? It just started after i changed the oil, it almost feels like the oil isnt circulating like mayb there is an air pocketand the pump cant push the oil or something, i read somewhere another person said that could be a possibilty that the oil pump is dead headed? Would pulling the paper filter out for a few minutes possibly allow oil to get up to the top end? Idk what to do?

 

Hard to tell without hearing it. If oil wasn't circulating the oil pressure warning would come on pretty quickly.

I remember seeing some problems with CVVT hubs making noise on cold starts. Haven't seen that in a while though but that would be my best guess.

 

Ok let me try and take a video and upload for u to hear