adjusting 172 tappets

[clidge]

hi guys what can be done to reduce the sound made by these little buggers? can they be adjusted/cleaned or is the only thing you can do is flush the system at service time cheers thanks again

 

[Fred@BTM]

hydraulic non adjustable

wack some Forte top end treatment through a few hundred miles before an oil change

 

[clidge]

cheers mate where can i get this stuff from thanks again