I am about to change my water pump. It looks easy since I have both rad hoses off and am about to change the serpentine belt as well, but I have a couple of questions:

1/ The manual says to "discard the pulley bolts" > Why on earth would you discard perfectly good bolts ? Does anybody have any insight on this ?

2/ When replacing the pump, the torque spec for the bolts says: "8 NM plus 90 degrees " This seems very low but I can't find any updated TSB or anything like that...again , any input is appreciated from those with experience.



When I get this done and refill the coolant I am ready for summer

 

8 Nm converts to around 71 in.lb., which is correct. The fasteners are discarded because the additional 90 deg stretches the threads. I just reused with blue threadlock.

 

+1 with RJ. Don't worry those torque numbers work just fine Barry.

John

 

Fair enough ...thanks

I will be reusing the pulley bolts as well. They are torqued to 10 NM....can't imagine that this puts enough strain on them to stretch them LoL

 

I had to buy a set of smaller sockets when I replaced my water pump. The heads are 8mm, tiny! Thus the low torque rating.

I didn't use a torque wrench, no leaks in 5 years and 30K miles.

The thermostat housing was a different story though!

 

all done and torqued properly ...no leaks