Originally Posted by KASUYAHO
Setting the valve clearance, do you guys use Hotcams shim kit ?
And do the clearances on the LC8 need to be done a lot ?
I just buy a one step thinner shim when the gap goes too small. After 113 kkm and two motors I have learned:
- clearance hardly changes providing the motor operating temperature is stable (nowadays my 2009 990 motor never sees anything but four bars on the panel) also with plenty high load on low and high rpms at low speed and very high ambient temperatures
- intake valve clearances havent changed at all after 40000 km
- all four exhaust valves needed one step thinner shim after 40000 km
- my old 2006 950 motor was another animal, much more temperature variations and need to reshim both intakes and exhausts after each season of about 20000 km