Review on 🔧 ACDelco Professional Engine Water Pump 252-814 - Boost Your SEO! by Paul Wall

After installing and starting the car, I noticed that the pulley was out of balance. The water pump has dowel pins on the front for centering the pulley, but they don't appear to have been calibrated. There was a skew and the pulley could be moved an eighth of an inch in either direction. I had to center it manually, which took about half an hour. I'm a mechanic and I knew you were looking for this, but the average shade tree mechanic probably wouldn't notice this and wouldn't know how to fix it manually if they did and subsequently damage their car. Just as a severely out-of-balance car tire bounces off the ground at high speeds, or an out-of-balance washing machine slams through a wall, an out-of-balance pulley spinning at 3,000 rpm can cause catastrophic damage.