3000GT V6-2972cc 3.0L DOHC (1993)
4.
Check the rocker arms indicated by the white arrow in the illustration using the following procedure.
FOR ALL EXCEPT THOSE ENGINES WITH Y-SHAPED ROCKER ARMS
Check if the rocker arm can be pushed down when pushing it at the portion just above the lash adjuster.
^
If the rocker arm can be pushed down easily, then the corresponding lash adjuster is defective.
^
If the rocker arm cannot be pushed down (it feels very stiff), the lash adjuster is in good condition. In this case, investigate other causes for
the abnormal noise.
FOR THOSE ENGINES WITH Y-SHAPED ROCKER ARMS
NOTE
The Y-shaped rocker arm on the exhaust valve side cannot be pushed down if either of the lash adjusters is in good condition. So, use a feeler
gauge to check the lash adjuster using the following procedure.
a.
Check if a 0.1 - 0.2 mm leaf of the feeler gauge can be inserted between the valve and the lash adjuster.
b.
If the leaf can be inserted, the corresponding lash adjuster is defective.