Pegaso Cube year 2000 very hot

[hipogrifo]

Hello from Bilbao,

Sorry, my english is very bad.

I have a problem wth my pegaso for a some months.
The bike is super heat.

The water level is ok and the fan works ok but all time.

Do you know what is the problem?

thanks

[fritzle]

Hello hipogrifo,

I had the same problem recently.

Check if after about 10 km the right coolerhose (from cylinderhead) is much hotter than the left (from cooler back to engine).
If yes, then it could be the same problem I had: the impeller of the water pump was not fastened to the shaft (you can then turn the impeller by hand when the water pump is open).

Could also be the thermostat (also in the water pump housing)

Hope this helps you find the cause,
Michael (aka fritzle)

Hello from Bilbao,

Sorry, my english is very bad.

I have a problem wth my pegaso for a some months.
The bike is super heat.

The water level is ok and the fan works ok but all time.

Do you know what is the problem?

thanks

[hipogrifo]

Hello hipogrifo,

I had the same problem recently.

Check if after about 10 km the right coolerhose (from cylinderhead) is much hotter than the left (from cooler back to engine).
If yes, then it could be the same problem I had: the impeller of the water pump was not fastened to the shaft (you can then turn the impeller by hand when the water pump is open).

Could also be the thermostat (also in the water pump housing)

Hope this helps you find the cause,
Michael (aka fritzle)

Thanks fritzle,

I will try this solution

[hipogrifo]

Problem solved.
I had air in de radiator.

thanks Fritzle