The drive belt is Serpentine so all you have to do is grab a 14mm socket and turn counter clockwise. This will force the pulley down enabling you to remove the belt.
It's usually on the inside of the hood when you open it, just look up.
Around 90,000 to be safe but I've seen them changed at 100,000 miles
To replace the water pump on a 1995 Lexus SC400, first, ensure the engine is cool and disconnect the negative battery cable. Drain the coolant, then remove the serpentine belt, and detach any components obstructing access to the water pump, such as the timing cover or crankshaft pulley. Remove the old water pump by unbolting it from the engine and clean the mounting surface before installing the new pump with a new gasket. Finally, reassemble all components, refill the coolant, and check for leaks.
set the harmonic balancer pully to zero there are 2 notches on the cam shaft pullies that should align with a mark on the mounts
To obtain a timing belt diagram for a 1992 Lexus SC400, you can refer to the vehicle's service manual or search for online resources such as automotive forums or repair websites. These diagrams typically illustrate the routing of the timing belt, including the position of the pulleys and tensioners. Additionally, many automotive parts retailers offer repair guides that might include the diagram you need. If you're unable to find one, consider consulting a professional mechanic for assistance.
On a 1993 Lexus SC400, the timing marks are located on the crankshaft pulley and the timing belt cover. You can find the marks on the crankshaft pulley aligned with a mark on the timing belt cover, indicating the correct alignment for the engine's timing. It’s important to ensure that the engine is at TDC (Top Dead Center) for cylinder one when checking these marks. Always consult the vehicle's service manual for specific details and diagrams.
Remove fan clutch with fan impeller. Remove A/C compressor drive belt. Remove cap from tensioning roller. Relieve tension on drive belt. Remove drive belt. Reverse procedure for installation.
It's best to do because you have to have the front and top of the engine apart so might as well do it while it's apart.
remove clutch cover. remove old belt. install new belt.
Have this done by a professional. It requires a torque wrench and knowledge of the necessary tightness to safety secure a new seat belt. This is not something you want to DIY.
no just take it off a few pulleys to give u slack when removing the water pump
Set the parking brake and disconnect the spark plug wire. Remove the cutting deck and the battery. Loosen the pulley and remove the upper belt. Remove the belt guide and the belt keeper. Loosen the bolt on the crankshaft pulley. Remove the lower drive belt.