1998 Nissan Altima Q&A
1998 Nissan Altima Question: Power steering pump pulley breaks after installation
So my power steering pump and hose were replaced along with my power steering pump pulley. The pulley was warped and I had some leaking in the pump and hose. Thats why they were replaced. Three days later a shaking sound occurs. My pulley is busted! The inner ring area is gone. We figure we had gotten a defective "new" power steering pump but are there any other possibilities like poor installation? - Visitor
Defective parts are always a possibility, especially on remanufactured-pumps.. However I would look more towards an improper installation… Over or under torqueing is the most common cause for pulley failure.. TIGHTENING SPECIFICATIONS Bracket: 14 - 18 Nm (10 - 13 ft. lbs.) Connector: 69 - 78 Nm (51 - 58 ft. lbs.) Connector (To Front Housing) Bolt: 49 - 69 Nm (36 - 51 ft. lbs.) Pulley: 54 - 68 Nm (40 - 50 ft. lbs.) Rear Housing: 14 - 18 Nm (10 - 13 ft. lbs.) Suction Pipe: 14 - 18 Nm (10 - 13 ft. lbs.) Also check the drive belt & drive belt tensioner for wear and binding... - James Monaghan MSc.