I have an old Delco Heat Gas Furnace Model # GF -80 Gas Input is 100,000, and the BTU input is 80,000. The blower motor was not working. I put a new motor in and the belt spins but it's not kicking out the heat. I looked in there and the fan that is connected to the belt has what looks to be 2 {1 on each side of the fan} flaps for oil/grease. My Question is: Am I correct about the flaps? Also, if I am right: What type of oil or grease do I use?
