NSX V6-3.0L DOHC (1991)
A few cars require the installation of a new waterpump. Compare the VIN of the vehicle to the chart in this bulletin; if called for, replace the water pump
with a new unit listed under PARTS INFORMATION.
1.
Drain the cooling system. Collect the coolant in a clean container. (See service manual page 10-5.)
2.
Carefully remove the lower coolant hose in the shift linkage tunnel. Do not damage this hose, it will be reused.