Measure
Vane length - nominally:
- 4JA1T/4JA1TC engine – 12.5 to 13.5 mm.
- 4JG2T engine – 14.2 to 15.2 mm.
Measure
Inner diameter of housing - nominally:
- 4JA1T/4JA1TC engine - 57.0 to 57.1 mm.
- 4JG2T engine - 60.0 to 60.1 mm.
Replace if diameter exceeds specification.
Inspect
Check valve for operation – use screwdriver to operate valve (arrowed) from side B.
Check valve for leaks – apply 1.5 bar (21.8 psi) to side A no leaks at side B.
