Allis-Chalmers — Thermostat Testing
Testing & diagnosis · Thermostats
From a Allis-Chalmers owner's manual covering: 11000, 11000 MKIT, 11000MKII, T1Q00GMKII. Check it applies to your exact model before use.
Applies to: Allis-Chalmers 11000 / 11000MKII engine
Procedure
- Suspend thermostat in clean water, fully immersed but not touching bottom.
- Gradually heat water and check temperature with a reliable thermometer.
- Note temperature at which thermostat starts to open and at which it is fully open.
- Travel between open and closed must be minimum 0.310 in (7.87 mm).
- Replace thermostats that do not operate within limits; they are not adjustable.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Current: starts opening at 180 F (355 K), fully open at 200 F (366 K)
- Early 170 F thermostat opens at 170 F (350 K), fully open at 185 F (358 K)
- Minimum travel 0.310 in (7.87 mm)
Full service-parts list: Allis-Chalmers 11000 / 11000MKII engine →
Source: Allis-Chalmers owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.