How to fill coolant and Bleed the cooling system?
Only for vehicles with Scania retarders: a)Remove the rubber plug and connect the adapter (part number: 99 301) with hose to the bleed nipple on the retarder coolant pipe, see illustrations A and B. The hose should be long enough to conduct the air-mixed coolant to the cool- ant trolley or any other collecting tank.
Do you have to bleed coolant before starting water heater?
On vehicles fitted with an auxiliary water heater for the cab or engine heating, the cooling system must be bled before starting the water heater. Otherwise the water heater could overheat, which would lead to impaired function and shortened service life. IMPORTANT! Coolant must be filled to the maximum level before starting the engine.
What causes a marine fresh water cooling system to leak?
Once the safety margin in the expansion tank is used up, air will enter the closed system. Since a mixture of air and coolant is insufficient as a heat carrier overheating will result. Some leaks may be difficult to find unless system is under pressure. This pressure is created by normal engine temperature.
Can a head gasket leak cause coolant to evaporate?
Solving the mystery of Coolant Disappearing From Reservoir. Sometimes, though the head gasket can turn out to be defective. Such an issue, in turn, can lead to coolant flowing into the cylinder and evaporating. In case, the head gasket leak is a minor one; the air is likely to enter the coolant system.
Why does my car’s water pump bleed coolant?
You are now purging your cooling system of air as the water pump begins to pump coolant through your system pushing air out. As you are running the vehicle, add coolant as the air is released, and the coolant level drops.
How to bleed coolant system 3.1 / 3.4 liter?
this is video on how to bleed the coolant system on a general motors 3.1 liter and 3.4 liter v6 commonly used . if you do not bleed the coolant system after doing lower intake gaskets,water pump,coolant hose or many other things that expose the coolant system to air will cause a overheat condition. Loading…
Can a bleed screw be removed from a cooling system?
Warning! Don’t remove a bleed screw while bleeding the cooling system or you may seriously burn yourself with hot coolant. Once the engine has reached operating temperature, turn the coolant bleed screw one to two turns counterclockwise using a wrench of the correct size.
What to do if your cooling system bleeds?
If your cooling system has a bleeder valve it will be important to use it. The best thing you can do to protect yourself from an air pocket is to watch the gauge and double-check your coolant level after any work on your cooling system.