Suzuki SQ416 Service Manual page 96

47) Confirm that torque converter is fully fitted in transmission.
Confirmation can be done by measuring dimension between
end surface of housing case (2) and drive plate installation
seat.
Standard dimension between end surface of case housing
and drive plate installation seat "a":
For G16 engine: 21.5 mm (0.85 in.)
For J20 engine: 17.3 mm (0.68 in.)
For H25 engine: 17.4 mm (0.69 in.)
48) Check that torque converter turns smoothly and apply grease
to center piece (1) of torque converter.
AUTOMATIC TRANSMISSION (4 A / T) 7B1-25