The_Eagles’_Nest
Well-Known Member
So after driving my Imperial for a couple weeks or so a concern has developed. The car will run great in the morning and runs great when going down the road, and in stop and go traffic without the A/C on.
However as soon as I turn on the A/C it starts to run much more roughly and it will actually stall after coming to a stop with prolonged A/C use.
I have replaced the fuel filter, air filter, PCV valve, and changed oil as part of maintenance.
I double checked timing and set it at 15°BTC, idle was set at 700 rpm in neutral with the A/C on and high beams on, with the vacuum advance disconnect.
I went to go investigate this as I suspected a fuel issue or a vacuum leak. After confirming great fuel delivery, I decided to look at the ThermoQuad. Looking inside the carburetor then bowls had minimal sediment, almost negligible. Then, I found the choke shaft has radial play and the primary throttle blade shaft has radial play.
I would like to see if anyone else has had similar issues. I’m 99% sure that a new carburetor without wear will resolve this issue.
However as soon as I turn on the A/C it starts to run much more roughly and it will actually stall after coming to a stop with prolonged A/C use.
I have replaced the fuel filter, air filter, PCV valve, and changed oil as part of maintenance.
I double checked timing and set it at 15°BTC, idle was set at 700 rpm in neutral with the A/C on and high beams on, with the vacuum advance disconnect.
I went to go investigate this as I suspected a fuel issue or a vacuum leak. After confirming great fuel delivery, I decided to look at the ThermoQuad. Looking inside the carburetor then bowls had minimal sediment, almost negligible. Then, I found the choke shaft has radial play and the primary throttle blade shaft has radial play.
I would like to see if anyone else has had similar issues. I’m 99% sure that a new carburetor without wear will resolve this issue.