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Lincoln "K" Technical Questions

1932 KB Potential fuel supply issues with E10 (10%...
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Hi Jan, This is Michael Riley. You posted on my issue for my 31. I actually live just a few miles from you in Spring. Give me a call if you would like. My # is 713-992-1086.

As far as the fuel issue that you are having, I recommend that you do not use any fuel with alcohol in it. It gradually destroys any rubber parts in your carburetor and just does not let your Lincoln run the best. The fuel will turn into vapor to quickly. The best fuel for these Old Cars is the High test 93 Octane. There is not any alcohol in this fuel. It lasts longer and your carburetor will work much better. Also these cars were designed for a heavier type of fuel, and the fuels of today make it much easier for these cars to vapor lock. To keep that from happening, the best thing to do is to ad Marvel Mystery Oil to every fill up. just 4 oz per every 10 gallons. Its also good for your valves. I only use the 93 octane mixed with the Marvel Mystery Oil in All my old cars, and I have never had a vapor lock issue since.
It looks like that my 1932 KB has problems with the fuel supply when driving longer distances and then going to a higher speed (over 60 mph). The strange thing is that the problem looks more dominant when the temperatures are a bit cooler. I do live in the Houston area so cooler is not really cold, 70 F or so. When I increase speed the engine water temperature stay's cold, or even good down, and for this reasons the automatic radiator vents do probably also close a bit. The car is already equipped with an additional electrical fuel pump.
I also do have a 1929 Packard 645 with a vacuum pot fuel delivery system. This type of set up should be more vulnerable to this type of vapor lock problems. This car however is housed in the Netherlands, has only seen E5 fuels and I have shielded the exhaust down pipe in the engine bay with thermal insulation material. I still have to be patient when trying to restart the car when it was stoped with an hot engine and stood for a while.
Question I do have is if there are other Lincoln owners which see similar issues with the use of E10 fuel and if any mitigation steps are known. I can insulated the fuel line's, the glass fuel filter, etc . Insulation the exhaust parts in the V12 set-up is probably not that easy. Has anybody tried to shield the carburateur with a heat shield for the exhausts on top of the engine? If I look at the engine set up it could be the case that the E10 ethanol fuel mix starts to boil in the carburetor only based on radiation from the engine.
Any sharing of experiences would be welcome!
Regards,
Jan Degeling
The Woodlands
Texas
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