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Discussion Starter #1
Does someone had to deal with these dusty street or little rocks roads, I don't know the name of this materials, but I would like to know if there is any risk with the rocks, that the car could push up verry hard to the motor erea, or with the dust that goes to the motor?
 

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Does someone had to deal with these dusty street or little rocks roads, I don't know the name of this materials, but I would like to know if there is any risk with the rocks, that the car could push up verry hard to the motor erea, or with the dust that goes to the motor?
If you foresee this problem, use coverbands and ducted air from a location like under the hood with a filter and blower.
 

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Ok, but is the dust a problem> can it borke anything inside?

I was thinking to put on the botomo of the car, in the motor zone, first this plastic net like for the mosquitous, and then a similar one but metalic...
 

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my car has a mid engine (motor now) drivetrain. The motor is located fairly low in the car and near the rear wheels. I've got about 15000 miles on the conversion.

I've got a bit of scoring / uneven wear on the brushes and commutator that I attribute to more dust/dirt entering the motor that you would get with a front mounted motor. It is still running fine and there is plenty of life left in the brushes, but the uneven wear will mean turning the commutator when it comes time to replace the brushes.

There is a cover that keeps the biggest stuff out of the motor commutator, but it doesn't do anything for keeping dust out.

If you anticipate dusty operation I would strongly recommend either a fully enclosed motor (meaning going to AC or some flavor of PM/BLDC) or else use filtered, ducted, forced air cooling.

Cheers
 
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