Originally Posted by Barry
Thanks Bill. It appears that water pump bolts are TTY. Does that mean they should be replaced if I replace the water pump?
Don't say I said so,
, but depending on the application, most TTY bolts can be re-used. For critical applications like head gaskets, I almost always buy new bolts. But the last Lexus cylinder head I did I re-used the TTY bolts because the factory service manual permitted it. Don't sue me when your water pump falls off, but I have never bought new bolts for a water pump.