Help with recurrent flooding problems (Pleasse !)
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Instructor
Joined: Jul 2016
Posts: 103
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From: Hull Mass
Help with recurrent flooding problems (Pleasse !)
Mornng Fellas,
Having trouble with recurrent flooding in my 68 327/350 Rochester Quadra-Jet 7028212, Seems after car sits for 2-3 day's and you try to start it, it has decided no way, The conditions I found were an extreme amounat of gasoline in the Oil.....??????? (appx 1/2 gallon). It refused to start with PCV valve connected. Pinch off the hose or pull the PCV valve and I got it to start. Changed the oil and filter and new needle , seat and float. Yesterday the same damn thing is happening. Any comments or idea's welcome. Please help me solve this !!!
Thx Jim
Having trouble with recurrent flooding in my 68 327/350 Rochester Quadra-Jet 7028212, Seems after car sits for 2-3 day's and you try to start it, it has decided no way, The conditions I found were an extreme amounat of gasoline in the Oil.....??????? (appx 1/2 gallon). It refused to start with PCV valve connected. Pinch off the hose or pull the PCV valve and I got it to start. Changed the oil and filter and new needle , seat and float. Yesterday the same damn thing is happening. Any comments or idea's welcome. Please help me solve this !!!
Thx Jim
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
If I remember correctly reading Lars papers....the 68 Q-Jet is the one that gave the Q-Jet a bad rap......it is the only model year that the well plugs actually leaked on........you may have this happening because there is literally nothing else that could cause a buttload of fuel to dump down the intake in a not running state.
I suggest you take the unit off and send it to him........
The half gallon of gas in your oil must be over a bunch of running cycles as the Q-Jet only holds about 3oz. of fuel I believe.....
The reason it fires with the pcv pulled is you are introducing a buttload of air to go with your buttload of fuel......
Lars may chime in here....
Jebby
I suggest you take the unit off and send it to him........
The half gallon of gas in your oil must be over a bunch of running cycles as the Q-Jet only holds about 3oz. of fuel I believe.....
The reason it fires with the pcv pulled is you are introducing a buttload of air to go with your buttload of fuel......
Lars may chime in here....
Jebby
Le Mans Master
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From: Tampa Florida
1967 Pedal Car Champion
Joined: Mar 2020
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From: US-PNW
Out of curiosity, how do you know 1/2 gallon of fuel was in the oil? Since gas and oil mix completely, was your oil level the equivalent of 2 quarts over-filled?
I don't see how leaking well-plugs are going to add that much fuel to the crankcase. Would be extremely rich, soaking wet spark plugs, etc., but how would it get to the crankcase without other hugely obvious symptoms? That quantity of fuel sounds like fuel pump.
I don't see how leaking well-plugs are going to add that much fuel to the crankcase. Would be extremely rich, soaking wet spark plugs, etc., but how would it get to the crankcase without other hugely obvious symptoms? That quantity of fuel sounds like fuel pump.
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Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
Out of curiosity, how do you know 1/2 gallon of fuel was in the oil? Since gas and oil mix completely, was your oil level the equivalent of 2 quarts over-filled?
I don't see how leaking well-plugs are going to add that much fuel to the crankcase. Would be extremely rich, soaking wet spark plugs, etc., but how would it get to the crankcase without other hugely obvious symptoms? That quantity of fuel sounds like fuel pump.
I don't see how leaking well-plugs are going to add that much fuel to the crankcase. Would be extremely rich, soaking wet spark plugs, etc., but how would it get to the crankcase without other hugely obvious symptoms? That quantity of fuel sounds like fuel pump.
Jebby