I got the new water pump bolted up on my '96 SL. After installing the pulley, I gave it a spin. Of course it is a little stiffer turning than the old pump, but it seems to have a tight spot at the same place on each rotation, for about 45 degrees.. Kind of makes a real light squeal at the tight spot, not sure if the impeller is hitting the aluminum block or its just the new seal.
The pump is an Autozone "lifetime Warranty" one, not the cheapest they had. Do you think the pump could be bad, or is a tight spot normal on a new pump? Or is it possible that I bolted it up off center?
Larry