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41 110 Deluxe woody wagon.
Any ideas to cure an issue with it not wanting to start after it has run around town for a bit, shut it off and try to re-start.
If it sits for a while, it will start back up. I have two 6 volts battery in series so the cranking amps should exceed what it needs. Also, the starter is rebuilt. I have to think it is something else.
It starts when cold instantly.
Any thoughts out there?

Sounds like fuel percolation issue. Do you smell gas about 2-5 minutes after shut-off or see gas on manifold or base of carb? If yes to any, then gas/fuel percolation. If no then could be electrical ie. coil.

No gas smell however, we did have an issue with fuel leaking from the carb base, etc. due to (we think) an electric fuel pump someone added which the carb couldn't handle the pressure of. Also, the needle and seat were not perfect which we corrected.

A coil makes since too

REverett, did you mean to say you have two 6-volt batteries connected in PARALLEL? If they are in SERIES, you have a 12-volt system. Others here are providing good advice on looking at the coil failing when warm or a carburetor or fuel related problem. These Packard 6-cyinder engines are relatively simple and rugged units. Pre-war Station Wagons are rare and attractive automobiles. You are fortunate to have one.

(o[]o)

Dear Rev:

Here is a standard proceedure for isolating a hot starting problem.

a) A KD spark tester from NAPA will let you check for continuous ignition. The spark should be regular with four beats per revolution from the coil. You should have at least 20Kv when connected to ground.

b) Pump the accelerator and check for fuel. Use a squirt oil can to prime the carburetor. This will isolate a fuel problem.

c) Put your hand over the carburetor and crank the motor. You should have suction. If not, do a compression test and check the cranking vacuum. It should have at least 80psi and 2-5 inhg cranking vacuum. Cranking speed is also important. Too fast means low compression.

d) Another cause is ignition timing. The timing marks need to be carefully cleaned and the timing set to specification. I have found that Packards need proper timing. Timing by "ear" just doesn't work. The marks on these Packards can be very hard to find and if somebody has gone crazy with paint and sandpaper that is a big problem. You can get cylinder number one to TDC and carefully remove the paint with thinner. I have had to spend hours on this detail in some cases.

e) Finally, the proper way to start a downdraft carbureted motor when hot is to floorboard the accelerator. Packard specified that extended cranking may be required with a hot motor.

Hope this helps

It's considerably easier in my view to eliminate the coil as a potential for the problem that to track down fuel issues. Just buy a universal 6-volt coil (or borrow a known good one) and temporarily put it in place with some friction tape, and transfer the necessary connections. If that doesn't solve the problem then you're pretty much certain it's fuel related.

Your right, parellel, not in series. Thinking of something else. It is 6 volt output.

Not sure what to do with the fuel if that is the issue. Also not sure why someone put an electric fuel pump in the system when it seems the mechanical pump works fine.