[Healeys] Running Problem

[Perry]

Brian
With the info you provided there isn’t to many “causes” that would fit those parameters.
 Fuel on the ground under the front of the car---very over rich situation at the carbs, likely a float needle stuck open. Not sure if the fuel spill happened when the ignition was on or off.
When it does start, runs rough. You didn’t mention if it was belching black smoke out the tailpipes.  Could be lean or rich but since you mentioned the spark plugs looked OK suspect lean condition ---
Suspect clog at the float needle. It only takes a very small flake of rust or crud to block them or hold them open.
The carbs really don’t care if a bit of air is being sucked through the fuel line as long as the carb bowl stays at the proper fuel level in the float chamber.
Did you collect a sample of the fuel when you ran the pump with the fuel line disconnected? Wasn’t sure what “ran clear” meant other than no bubbles. Was it a visual observation or inspected sample.
I’m leaning towards a rusty fuel tank or accumulated crud in the fuel system. As others mentioned, a filter between the pump and carb will remove the offending substances before it gets to the one place that makes the engine act up, fuel wise.
Perry

Sent from Mail for Windows 10

From: Brian Drab
Sent: Thursday, May 28, 2020 8:57 PM
To: healeys at autox.team.net
Subject: [Healeys] Running Problem

I guess I wasn’t too clear on something in my first post I only smelled raw gas once and it only leaked fuel once. Since then I have searched for some source of fuel leakage but can’t find any. I was thi8nking that it might be sucking air as well as gas through some hole in tank to pump lines, but when I checked the fuel delivery it ran clear with no air bubbles in the gas..
Brian Drab


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