[koates]

Must use a low melting point grease so that if the grease gets past the pump seals then it will melt in the hot coolant and wont block up the radiator tubes. Just one pump from the grease gun is enough grease in the pump housings so that you dont crack the pump housing or force grease past the pump seals. The new improved pumps with modern impellers and sealed bearings work very well with no greasing required. Dont have that big belt too tight because it wears out pump and generator bearings if its tighter than specs. Regards, Kevin.