Just wondering if anyone has any suggestions besides the painstakingly obvious. We are the second owners of a manufactured home and it is quite evident that they installed the brick during cold weather. The motor surface is flaking off and underneath that the mortar can be rubbed out with your bare finger. I really don't want remove 3/4 inch of mortar and re-point the house. Wondering if there are any products out there that i could apply to the motor to harden/ seal it.