Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Thermostatic Air Cleaner: Operation
When incoming air temperature, as sensed by bimetal, is below a predetermined temperature, air control valve will be up (hot air position). When temperature has reached a predetermined temperature, control valve will be down (cold air position). Between predetermined temperatures, control valve will be positioned to blend both hot and cold air to moderate temperatures reaching carburetor. Through this method, air temperature being used by carburetor is kept nearly constant.
| Application | Hot Air °F (°C) | Cold Air °F (°C) | |
|---|---|---|---|
| Arrow, Colt, Challenger & Sapporo | |||
| 1600cc Engine | 41 (5) | 108 (12) | |
| 2600cc Engine | 84 (29) | 113 (45) | |
| Champ & Colt (FWD) | 41 (5) | 108 (42) | |
| Arrow & D50 Pickup | 84 (29) | 113 (45) | |
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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