Very unhappy customer (NST pulleys).

[Astroman]

I wanted to update that now my Yaris has a cracked NST water pump! I put mine on more than 90k miles ago and my car has been unused for the past 9 months. After a rough start and replacing a dead battery and what I thought was a bad thermostat I noticed that after a few hundred feet my water temps were so high I threw a CEL and my hot light came on. After hearing clacking I looked thinking of this thread and sure enough in one spot it's cracked! Not happy with NST and I KNOW FOR A FACT MINE WASN'T OVER-TORQUED because I've had it problem free for 90k miles!

[tooter]

Originally Posted by Astroman

I wanted to update that now my Yaris has a cracked NST water pump! I put mine on more than 90k miles ago and my car has been unused for the past 9 months. After a rough start and replacing a dead battery and what I thought was a bad thermostat I noticed that after a few hundred feet my water temps were so high I threw a CEL and my hot light came on. After hearing clacking I looked thinking of this thread and sure enough in one spot it's cracked! Not happy with NST and I KNOW FOR A FACT MINE WASN'T OVER-TORQUED because I've had it problem free for 90k miles!

Are you running the stock crank pulley?

[Astroman]

Originally Posted by tooter

Are you running the stock crank pulley?

I'm running the full NST-lite pulley set problem free until yesterday. The wp pulley had a wear groove of about 1/16" and I wouldn't have known it was cracked if I hadn't been having overheating issues. My overheating turned out to be no coolant in the radiator.