Fixing oil leaks after my wreck I removed my water pump. I had bought the pump from a well know responsible supplier. It was new. I installed the pump about two months before the accident. A 50/50 antifreeze mix was used. The accident destroyed the radiator so the coolant all drained out. When I removed the water pump there was a lot of corrosion in the water pump, enough to slow down flow. The coolant system had set empty for four months. Has anyone else observed this? The timing chain cover had no corrosion on it.
The ports that the coolant flow from the block to the water pump impeller had corrosion about a ΒΌ inch. I can not see any other corrosion except the water pump.
Hmmm . . . So, rust into the impeller as well? 5-Vane? Sorry to hear of your wreck. Will be resurrected?