On my 97 4Runner / 2.7 L 3RZ-FE I4 the water pump has two bolt sizes.
I read that the bolts with the 10mm head are supposed to be torqued to 5.75 Ft-Lbs or 69 In-Lbs. I torqued them to 10 Ft-Lbs. The two bolts with the 12mm head are supposed to be torqued to 20 Ft-Lbs.
I also read that the...