505 L4-1971cc XN (1983)
Fig. 11 Thermo-time switch test
The thermo-time switch limits the time that the cold start injector operates according to engine temperature as shown in Fig. 10.
1.
Remove thermo-time switch.
2.
Set up test as in Fig. 11. Connect test harness 8.0141 BH to thermo-time switch and use black lead (a) to connect switch to test light. Use jumper
to connect switch body to negative battery terminal.
3.
With water temperature below 86°F, test light should light.
4.
Heat water gradually to raise temperature and note temperature at which light goes out. Light should go out between 86 and 104°F. If not, replace
switch.
