I recently changed my robbe U47 over to 12 volt operation using graupner 500e motors and when i had the sub out yesturday the motors for lack of better words over heated very badly after a run of about 25 mins
they were so hot that they warped the motor mounts and burned someones hands when they touched them. The linkages and prop shafts were freely turning and nothing was fouled in the props
I am looking at installling a set of these cooling jackets and setting the intakes up at the stern of the sub it would require me to drill 2 small intake lines and a single larger exhaust pipe hole in the WTC
will these work in a submarine model
or will need to install a water pump on top of these for proper cooling ?
or should i just abandon the idea of these 12 volt motors and go back to the stock robbe ones
any help would be appreciated
they were so hot that they warped the motor mounts and burned someones hands when they touched them. The linkages and prop shafts were freely turning and nothing was fouled in the props
I am looking at installling a set of these cooling jackets and setting the intakes up at the stern of the sub it would require me to drill 2 small intake lines and a single larger exhaust pipe hole in the WTC
will these work in a submarine model
or will need to install a water pump on top of these for proper cooling ?
or should i just abandon the idea of these 12 volt motors and go back to the stock robbe ones
any help would be appreciated
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