A: Service begins with draining engine coolant before proceeding to detach the oil filter and oil cooler through removal of water bypass hose connections and clearance of union bolt with plate washer and nut and oil cooler while extracting its O-ring from the cooler. The oil cooler needs visual analysis for damage and clogging before a replacement can be made. First clean the mounting surface for the oil cooler then place a new O-ring onto the cooler before installing it with the nut. Use engine oil for a thin layer on the union bolt threads and under its head before placing the plate washer then bolt followed by torquing to 78.5 Nm (800 kgf-cm, 58 ft. lbs.) then nut torquing to 9.0 Nm (92 kgf-cm, 80 inch lbs.). The water bypass hoses must be attached to the oil cooler before installing the oil filter and filling with engine coolant which activates the system to check for leaks and measure correct engine oil level.
Q: How to install the oil cooler assembly on Toyota 4Runner?
A: The initial step to install the oil cooler assembly for the 2UZ-FE lubrication system is to clean the oil cooler contact surface on the cooler mounting. Start by placing a new O-ring onto the oil cooler before applying engine oil on the union bolt threads and beneath its head. The plate washer together with a new union bolt should be installed while applying 69 Nm (700 kgf-cm or 51 ft-lbf) torque. The two oil cooler hoses must be connected to the cooler unit. Install the oil filter assembly before filling engine oil and engine coolant into their specified areas. Engine oil leak inspection must be followed by checking for engine coolant leakages. Instillation of the engine under cover assembly rear serves as the final stage.
Q: How to service the oil cooler on Toyota Tacoma?
A: You need to drain engine coolant as the first step before servicing the oil cooler. The following step requires disconnecting the hose connections for No.1 and No.2 oil coolers. You must remove the bolt as well as the relief valve and gaskets and oil cooler with an applied torque count of 59 Nm. When performing installation tasks users must switch out the O-ring part with a new one while also applying a fresh relief valve gasket. The oil cooler must be checked for damage or clogging before you consider replacement. The installation process executes the opposite sequence compared to the removal steps.