TOHATSU MFS25 Service Manual page 43

Functional Limit
Any opening under ambient temperature
75°C (167°F) because thermostat operation is delayed.
Measure valve open lift after 5 minutes.
3.0mm (0.12in)
Wear, crack or damage on tips and upper and lower
surface lips
75.0mm (2.955in)
0.4mm (0.015in)
0.05mm (0.0020in)
0.60 to 0.64mm (0.0236 to 0.0252in)
0.05 to 0.16mm (0.0020 to 0.0063in) or
Gauge Indication 0.21 to 0.67mm (0.0083 to 0.0264in)
1.35mm (0.0531in)
Severe Damage
7.5mm (0.295in)
0.4mm (0.015in)
0.5mm (0.020in)
97.0mm (3.82in)
100.0mm (3.94in)
60 seconds
6.0mm (0.236in)
18.5mm (0.728in)
0.8mm (0.031in)
Lip deteriorated, degraded or damaged, or tightening
margin reduced to 0.5mm (0.020in) due to wear
25/30 2006
Action To Be Taken
Replace if out of specified range.
Replace if less than specified limit.
Replace pump case liner and guide plate as a set.
Replace if severely worn.
Replace if severely worn.
Replace if severely worn.
Replace if less than specified limit.
Replace if necessary.
Replace if over specified limit.
Replace if over specified limit.
Adjust, or replace.
Adjust, or replace.
Replace if less than specified limit.
Replace if out of specified range.
Replace if less than specified limit.
Replace if necessary.
Replace if necessary.
Replace if over specified limit.
Replace if over specified limit.
Replace if over specified limit.
Replace PTT motor ass'y if less than specified limit.
Replace PTT motor ass'y if less than specified limit.
Replace PTT motor ass'y if less than specified limit.
Replace if out of specified range.
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