coolant questions: 2

If I read the coolant reservoir under the horn, and the level is between the lines as it should be:

1) does that mean there is enough coolant in the radiator as well?

2) how does the radiator know to draw from the reservoir when it needs to?

thanks in advance.

StratTuner said:

If I read the coolant reservoir under the horn, and the level is between the lines as it should be:

1) does that mean there is enough coolant in the radiator as well?

2) how does the radiator know to draw from the reservoir when it needs to?

thanks in advance.

Click to expand...

1) After filling the radiator directly, once the engine has gone through several heat/cool cycles, the air in the system is purged. Then you can assume that if the reservoir is at the proper level, the radiator is also full.

2) The system works just like the ones on cars. When the cooling system cools down it creates a vacuum on the reservoir line that draws coolant in if needed.

Quoted from HowStuffWorks site:
"When the fluid in the cooling system heats up, it expands, causing the pressure to build up. The cap is the only place where this pressure can escape, so the setting of the spring on the cap determines the maximum pressure in the cooling system. When the pressure reaches 15 psi, the pressure pushes the valve open, allowing coolant to escape from the cooling system. This coolant flows through the overflow tube into the bottom of the overflow tank. This arrangement keeps air out of the system. When the radiator cools back down, a vacuum is created in the cooling system that pulls open another spring loaded valve, sucking water back in from the bottom of the overflow tank to replace the water that was expelled."

Greg

670cc said:

1) After filling the radiator directly, once the engine has gone through several heat/cool cycles, the air in the system is purged. Then you can assume that if the reservoir is at the proper level, the radiator is also full.

2) The system works just like the ones on cars. When the cooling system cools down it creates a vacuum on the reservoir line that draws coolant in if needed.

Quoted from HowStuffWorks site:
"When the fluid in the cooling system heats up, it expands, causing the pressure to build up. The cap is the only place where this pressure can escape, so the setting of the spring on the cap determines the maximum pressure in the cooling system. When the pressure reaches 15 psi, the pressure pushes the valve open, allowing coolant to escape from the cooling system. This coolant flows through the overflow tube into the bottom of the overflow tank. This arrangement keeps air out of the system. When the radiator cools back down, a vacuum is created in the cooling system that pulls open another spring loaded valve, sucking water back in from the bottom of the overflow tank to replace the water that was expelled."

Greg

Click to expand...

Exactly why it is important to keep air out of that hose line. Hard to do.

Does our manual have a picture of where to check this?
Do you have a picture?

happy said:

Does our manual have a picture of where to check this?
Do you have a picture?

Click to expand...

White translucent tank on the lower right side under the radiator.

I should have looked it up on "how things work"... will try that first next time.

Anyway, it's between the lines now, and I will watch the level carefully.

happy said:

Does our manual have a picture of where to check this?
Do you have a picture?

Click to expand...

No, swiss manuals doesn't have pictures nor instructions. In fact, many swiss bikes doesn't have a manual at all

duk2n said:

No, swiss manuals doesn't have pictures nor instructions. In fact, many swiss bikes doesn't have a manual at all

Click to expand...

They do have them, they're just full of holes.

*badump tsssh*


lol. Sorry Happy