Packard Forum Index » Post-War (1946-54)

The flexible line appears to be in poor condition when it should have been one of the first things to replace before putting the car back on the road. Even when they look good on the outside they may have deteriorated and even collapsed internally causing blockage which can start out as intermittent before it blocks off fuel entirely. Incidentally, the same is true with the three flexible brake lines.

As for vapor lock, in all the years I've owned Packards from 1939 through 1956 I have never once had it happen, yet it seems to happen frequently to others. Not sure why that is.

Thanks, Don! That line is omly about two years old and came from one of the major suppliers. I put it on before I would've known better to check the ID on the hose. Sorry, should've offered that. Everything on the fuel side is basically new (or rebuilt). The tank is a stainless tank with vented cap, the lines are new, I have a WIX in-line filter before the pump, and bowl-style filter before the carb. The pump is freshly rebuilt, I used the insulators for the pump, bought and installed the fuel pump heat shield. I've really tried to meticulously manage these critical elements.

I just wondered if it was plausible that that line, even if relatively new, might be collapsing when warm. The ID really surprised me, and I would have guessed that might be an issue.