After removing the belt it no noise. then I turned the car off, started the car and there is a noise coming from the water pump, and while removing belt I saw the water pump wet. How hard is to replace? Where should I buy it?
What brand is good?
I recommend the Nissan factory pump and yes you should torque the water pump bolts. Performance Nissan has it for $56.87 http://www.trademotion.com/partlocat...93&catalogid=1
The specs for the M6 bolts are 4.7 - 5.5 ft/lb and the M8 bolts are 12 -14 ft/lb. The pulley bolts are M6 so they are to be torqued to 4.7 - 5.5 ft/lb. The Craftsman torque wrench is good. Also remember to clean the mating surface for the new pump and use a good RTV liquid gasket.
Troy
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SHIFT_Happiness
1992 S13 240SX SE Fastback KA24DE 5 spd - Type X Aero & Seibon Carbon Hood & Hatch -soon GT28RS
1993 U13 Altima SE KA24DET 5 spd w/ Nismo LSD - A high hp FWD can be fun (GT30R Turbo inside)
1990 Z32 300ZX VG30DETT 5 spd - 600HP & Very Civilized (working on twin GT28RS turbos)
Still trying to import a 1988 R31 Skyline GTS-R w/ RB20DET-R - only 800 produced (legal under show/display regs)