Originally Posted by Fast 4 Door
I just finished taking out my heater core for replacement and after the two hours of cutting and grinding the inner fender out realized I may want to consider a new heater motor while I am in there. The 1965 motor still works and I am concerned about the quality of a replacement motor. After all, the motor that is in there is 45 years old and still defrosting the glass in the morning . However, I wonder if a replacement will have more "umph". Do these things ever Die ? It spins freely and is quiet.
. Note that the old one does not blow as hard as I like ( try to contain the jokes ) but I have nothing to compare it to.
I am looking for a what would you do response as well as the more "qualified" opinion.
The motor will have brushes and bushings. These are the wear points that I would be concerned with. Obviously, a car from the North is going to put a lot more use and wear on the motor than a Southern car.
If the comm can be cleaned and/or turned and the brushes (and bushings [if needed]) can be replaced, I would do that before opting for a replacement unless the replacement was of a known good quality.
At the very least, clean the comm and replace the brushes.