This ever happen to anyone else?

Alan

PlowSite.com Addict
I had a wierd breakdown with my S-10 this afternoon. The fan hub on the waterpump shaft came off. That let the fan and fan clutch go wild, shattering the shroud and finally sinking about 3" of fan blade in the bottom of the radiator. Wasn't making any revs, putzing along about 35, I wonder what it would have been like if I had been under full throttle getting truck and trailer up to speed in traffic. Probaby the resulting "crunch" would have been a LOT louder. I'm thinking the shaft and hub are furnace brazed during assembly but the shaft looks like it has red loctite on it whre the hub fit. I have a spare radiator and shroud, I'll put on a new waterpump and keep my spare for some middle of the storm in the middle of the night breakdown. It could have been a lot worse, if it hadn't stuck in the radiator it could have danced around until it took out coolant and AC hoses.
 

John DiMartino

PlowSite.com Veteran
Location
Walden,NY
Alan,when I bought my 89 GMC 2500-the original owner had just replaced the fan,Water pump,radiator,and shroud when the same thing happened to him.The funny thing was he was going 35 miles an hour too,in his developement,only a mile from home.It was the original pump that failed.This failure is pretty rare,from what Ive seen,but definetely happens once in a while
 

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