Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

heat insulator gasket

<< < (2/3) > >>

blazer74:
 Part # 8726? 

Yes.

blazer74:
Are you having to hold the pedal to the floor to get a start after 30 minutes
Or needing to pump the pedal to get a start?

Checked your fuel pressure after shutdown to see if it's rising in the lines due to heat?

von:
Most parts stores fuel pumps put out too much pressure for a Q jet. They will run OK but after the engine is shut off the pressure goes up even more from expansion and overcomes the needle and seat, flooding the engine. An AC Delco pump will fix it. Went through this myself.

boogie:
 I ended up building a completely different 17058204 carb I had and now the problem is gone, starts right off every time now. 

Frank400:

--- Quote from: von on October 20, 2016, 03:01:40 AM ---Most parts stores fuel pumps put out too much pressure for a Q jet. They will run OK but after the engine is shut off the pressure goes up even more from expansion and overcomes the needle and seat, flooding the engine. An AC Delco pump will fix it. Went through this myself.

--- End quote ---

  Do you have a part number for that fuel pump ?  Frank.

Navigation

[0] Message Index

[#] Next page

[*] Previous page