TOHATSU MFS 4 Service Manual page 111

6. Measure pump body depth by using depth gauge or vernier
caliper. Replace if over specified limit.
Standard Value:
6.00mm (0.2362 in)
Functional Limit :
6.06 mm (0.2386 in)
7. Measure side clearance between pump rotor and body by
using depth gauge or vernier caliper. Replace if over
specified limit.
Standard Value:
0.02 - 0.07 mm (0.0008 - 0.0028 in)
Functional Limit :
Replace if over 0.10 mm (0.0039 in)
4st 4/5/6 2011
Measure this gap by using thickness gauge.
Oil Pan
lock gauge
or equivalent
instrument
Rotor
5-25
5