Gl8 hot air tank

Kopoity's statement is purely misleading. The principle of warm air is to let the engine coolant pass through a special kettle, and then the air to be heated is heated here before entering the cab. When circulating internally, a specific fan will suck air from the cockpit and then discharge it back to the cab.

As you said, there may be something wrong with the cylinder gasket. As for whether the cylinder gasket is smeared, after the car is warmed up, unscrew the plug of the fuel filler to see if there is anything stuck on it, and then see if there is white hot air coming out of the fuel filler. If there is, it is proved to be a problem with the cylinder gasket or cylinder head.

After you increase the engine speed, it will be normal. Increasing the engine speed will make the water pump run at a higher speed, which proves that your engine coolant pressure is not enough. You need to check whether your antifreeze is low. If so, there are two possibilities:

1, your cylinder is leaking antifreeze somewhere, which is the worst possible.

You just changed the antifreeze. Maybe the new antifreeze hasn't filled the pipeline yet. You need to wait for the engine to exhaust all the air in the pipeline before you can reach the pressure you should have.

You should see what I said about oil first. I hope it's not the cylinder head.