Hi Ed,
 > Vehicle: 1951 Chrysler Windsor
 > Engine:  Flathead 6
My knid of car (almost), I have a '57 Imperial.
 > Problem:  Engine dies while running.
Sounds like a problem I had.
 > Ok, thought I would throw this out for a bit of help.
 > Engine runs fine
 > at idle and power but within a few minutes (3-10 or
 > so) will suddenly
 > just die. No warning at all.. it just quits - let it
 > sit for about 2 or
 > three minutes and it starts up just fine and runs like
 > a champ until it
 > suddenly just dies again.
Sounds VERY familiar..... Another question... Does it re-start right off, or 
take a bit of cranking?
 > Items done to try and find problem:
All these sound reasonable.
 > We are stymied... only thing we can think of now is to
 > get a new carb
 > and try that.
Have you tried connecting a fuel pressure meter and watching that? My 
Imperial had a very similar problem and it turned out to be a weak fuel pump. 
I added a electric "boost" pump back near the tank and fixed my problem and 
also prevented any future "vapor lock" problems from happening. I used a 
small (~ 2"x2"), cheap (~ $20) one and put it in the line in the rear axle 
"cutout" area. Not easy to spot there and I am not going for show points 
anyway.
 > Oh, car has 47,000 original documented miles on it.
Sounds like a good find. My '57 had 30,000 miles on it. It was really owned 
by a little old lady from near Pasadena :)
 > Anyone got any ideas as to what is wrong or what we
 > may have missed?
I would look at the fuel pressure to make sure you do not have a pump 
oblem.
 > Thank you.
You're welcome and good luck.
Gerry
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