Using wood clothes pins sounds weird but seemed to work. A wood clip on a steel line cannot be much of a heat sink but would help a little. The wood “wood” be serving more as an insulator since the fuel lines were in the hot underhood air. Might even have worked to physically stabilize the line from vibration which might have added to vaporization/bubbling in the line. As I recall, the fuel pump was on top of the block at the back in my ’40 Ford. This required sucking the fuel upwards of one foot so even a little bit of insulation or heat removal may have made the difference. Mechanical fuel pumps are now low on the block so as not to require this extra foot of lift. Still was not enough on our ’55 C-300 after buying and installing a rebuild kit in the pump. Adding an electric pump back by the tank made all the difference and one could hear the pump pitch change as the bowls were quickly filled and the float valves closed.
Today’s fuel is designed for closed systems, carbon canister, high-pressure fuel injection, low emissions and not for ’40 Fords or ’55 Chryslers. But it can be made to work. Low-energy ethanol did not help MPG of the ’55 C-300 but I was able to get better mileage from our 345 CID “semi-hemi” Durango when TOWING the 331 CID Chrysler on an open trailer than when driving it. I also get better MPG in the Durango when using premium fuel as its computer-controlled ignition system recognizes the decreased knock tendency of the system on premium fuel and advances the timing accordingly. With only 8.5:1 compression ratio, the ’55 C-300 engine ran just fine on regular. Higher and optional much-higher compression ratios enabled significant increases on the 354 CID ’56 300B engines with the optional engine cranking out 355 HP or 1.003 HP per cubic inch. A first. Now wondering why Chrysler did not bring out the modern hemi with that same time-honored magic 354 CID displacement—just for old-time sake. That would equivocate to a 5.8 Liter engine. At least they did bring out a 392 CID engine which is advertised as a 6.4 Liter engine. I’d much rather have a “392”—and one with a cackle rather than a click as our ’05 Durango exhibits.
Rich Barber (Inches/Feet/Yards/Miles kind of guy)
Had a guy tell me just the other day when I was relating Hi-Temp issues w/the F last summer while on the way to the PA meet, clip a bunch of wooden clothes pins on the gas line!!???
Posted by: "Rich Barber" <c300@xxxxxxx>
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