Good luck, keep us posted! Do you have a fuel pump pressure gauge? First thing I'd look at if the bowl leaks again

Keep me posted Chris. I really don't like the idea I can have fuel spill over if I empty the bowl, as that could occur after a long storage or possibly after a long hot run and soak on a HOT day

Thanks Chris.

Regarding your fuel pressure, it would not surprise me at all if the 5 - 8# you have would cause problems with the valve seat in the bowl. Did you measure the pressure?

Is your mechanical pump not working, I do not see a reason to have two pumps.

As far as the carb leak, I am reasonably certain I can get mine to leak again by draining the bowl and then turn the electric pump on and don't start the car. Within a few seconds, fuel will pour out. However if I start the car, that fuel leak does not occur, even if I shut it off and then turn just the fuel pump on. Something is strange there, would like to find the fix, but as long as I don't empty the bowl, the problem doesn't occur. Only thing I can possibly imagine that if the float drops all the way down, it binds on something.
Fuel pressure on this electric pump is about 4.5#. Mechanical pump is on my bench, a rebuild project for the future.

As far as your carb being "dynoed" I think what they use a dry flow unit not a dyno, as dynos are used to measure engine performance HP and torque. On a dry flow bench, only air is used, no fuel, so if the float is sticking, it would not be discovered. Would like to know more about his testing, carb shop name?
Is the leather seat on the anti-percolation valve intact and is it closing?

John

Follow up comment. Been a couple months now, not a single fuel delivery issue since finding that crack. Closing the door (knocking on wood too) on this !

-john

Yours looks like a much newer and user friendly model than mine. I do not have the handy dial extending out. You have to loosen the two bolts to dial in the advance/retard and can't see the scale too easily based on it's location

Fascinating PTV, thank you

As for the compensator, I was referring to it as the distributor hold down bracket. I straightened out the bent ears, tack welded across an area that they rolled the metal and it seems quite strong now

Thanks JW, makes sense. It does state to set fuel compensator to zero. Any idea what that is?

Just verified mechanical advance is working, did see a couple degree change in timing with vacuum line off at idle and line plugged.

Been awhile, have completely rebuilt the engine and restored the frame and floorboards mid car forward over the winter. Engine is extremely quiet now

Running nicely but isn't quite right. Couple of issues / questions:
1- On vacuum advance cars I have worked on in the past, timing is done with vacuum advance port blocked off. I do not see that in any manual for the Packard's. Is vacuum advance suppose to be connected while setting timing?

2- Rebuilt the distributor as well. Noticed that the vacuum advance unit did not have the "return" spring in it. Can't find one anywhere. I scrounged my box of springs and found one that I "feel" is close and am using it, but without a distributor machine (nor the advance specs) shooting in the dark. Anyone with ideas for finding the spring? How about ignition curve for the advance?

3- The distributor clamp is tired. I attempted to straighten it but the metal is weak, Can't seem to get it tight enough as it seems to wander after a couple road trips. Looking for the hold down clamp, ideas?

Motor sure turned out nice

Attach file:

---

  (44.37 KB)

My primary thought is the issues I've had in the past with well water pumps either losing their prime or inability to pump because I had a leak on the pumps input side
I have an electric pump on this car located next to the tank. Hope this leak was the culprit, have had zero issues on this elusive issue and the logic In comparing this leak to a well pump I believe is sound

Fingers crossed!

Found an AWESOME video on line about this, Mikes carburetor. I have it hooked up right, HOWEVER, missing springs. One is a simple coil spring which I will find somewhere, second one is unusual and no ideas where I will find that one