Spring down.
Normally spring down.
spring down
The spring goes into the engine.
The spring side of any thermostat always goes towards the engine.
Spring towards engine.Spring towards engine.
The side of the thermostat that has a spring showing faces into the engine.
The spring side faces the engine
The side with the spring faces into the engine.
The spring goes down.
The spring goes into the engine.
Spring into the engine.