Quote:
Originally Posted by Frank Reiner
AA:
1) What is the ambient temperature when trying to start?
2) In the event that you have not done this, use a piece of dowel or other reaching tool to depress the air flow sensor plate while cranking. This will require the cooperation of the aforementioned helper to operate the key switch, while you depress the sensor plate.
From your description above, it seems that there is pressure in the lower chambers of the FD, but not enough in the upper chambers.
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Temperature was about 65 or 70 degrees in the shop where it's been sitting.
When the afore mentioned helper was cranking the engine I did just that, I worked the sensor plate up and down, with no change, but whenever I bled off some pressure from the port in previous picture, the engine started rigt up and then quickly died. We did this about a dozen times, this is when I realized I had heard something about having too much pressure to enter the top of the FD. Any ideas on that? I'm getting ready to do down and try blowing compressed air down the fuel tank return line to make sure it isn't clogged.