Hi Buick folks, I guess this question is aimed towards the 69 and 70 Riviera owners like Yardley and Dale. My fuel pump is apparently out of service in my 69 Riviera. The fuel pump is located in the gas tank. I have removed the little panel in the trunk that allows access to the fuel line, the sending unit wire, ground wire, and fuel pump wire. Please note that I can easily blow through the fuel line when it is removed from the gas tank so it is certainly not a plugged fuel line. Also pouring a wee bit of gas into the Q-jet allows the 430 to fire right up, so therefore no carb problems or ignition problems. I then cranked on the engine with the fuel line off while my wife observed the metal line from the fuel pump in the gas tank. No gas is being pumped. I am confident I have bad fuel pump or perhaps it is plugged somehow. In any case it must be removed and replaced or rebuilt. According to my 69 Buick service manual on DVD, one removes the unit and cam ring with wrench "J-21518". Can I use another tool in a pinch or where can I find this specialty wrench? I guess I will have to use some penetrating oil as well since this part has not been touched ever and 44 years is a good while. TIA.