Glenn Manes Posted July 6, 2015 Share Posted July 6, 2015 All, I have recently started to have problems on my 1918 E45. I recently finished and have started to drive my 1918 E45. Over the last couple of weeks the car has been running fine, but now that the weather here ( Wheat Ridge Colorado) has warmed up, I find that after driving for about 45 minutes, the car starts to loose power, and eventually I need to run it at about a 1/3/ to 1/2 choke. When it is in that choke condition it seems to run fine, but I am sure it uses way more fuel. I have tried to re-adjust the carburetor when the engine is hot, but I cannot even make it idle with out a choke. If I let the car cool for several hours it runs fine again, until it once again gets hot. Any suggestions or has any one had the same experience? Thanks, Glenn Manes Wheat Ridge CO. Link to comment Share on other sites More sharing options...
Mark Shaw Posted July 6, 2015 Share Posted July 6, 2015 Are you running E85 gas? Link to comment Share on other sites More sharing options...
Marty Roth Posted July 7, 2015 Share Posted July 7, 2015 Could it be that, as the heat increases, you might have a vacuum leak - possibly requiring more choke to minimize the effects of a vacuum leak to equalize the air/fuel mixture? I have had a similar concern with my Packard at some times, but it will miss badly until I choke it. Link to comment Share on other sites More sharing options...
5 ton beachbuggy Posted July 7, 2015 Share Posted July 7, 2015 I have an E 45 too. Been having almost same problems with mine in the Vegas heat [110 plus]. I heat wrapped the exhaust pipe put heat reflective tape around the vacuum tank .I also took off the part between the carb and exhaust manifold. Runs much happier now but still not happy at 115 degrees in traffic. The car has a fuel pump and a carburetor float blow in the vacuum tank. Next step is to buy real gas not blendedgas . Good luck with yours Mike Link to comment Share on other sites More sharing options...
Glenn Manes Posted July 7, 2015 Author Share Posted July 7, 2015 Mark, I am running some blend, required in Colorado, but it is not as drastic as E85.Marty, That is a good thought, do you have an easy way to check for a vacuum leak?Mike, did you just block the small tube to by pass the exhaust, or just disconnect it from the carburetor end. There is also a small v shaped cover on the bottom of the carb over the exhaust vent to open or restrict the flow of exhaust gasses around the carb. , I don't remember if it should be opened or closed for higher temps. I need to get this problem resolved in the next couple of weeks, I have scheduled the car to be used as escort for the Grand Marshal at my community's harvest parade. I hate to have it die and hold up the entire show. Thanks for any and all thoughts. Glenn Link to comment Share on other sites More sharing options...
Mark Shaw Posted July 7, 2015 Share Posted July 7, 2015 Spray WD40 or starter fluid around suspected intake gaskets and connections with the engine at idle. When you spray into a leak, the engine will speed up. Link to comment Share on other sites More sharing options...
carbking Posted July 7, 2015 Share Posted July 7, 2015 Wheat Ridge is situated (according to Wiki) at about 5500 feet above sea level. Thus, unless the carburetor has been tuned for this altitude, should always run slightly RICH. Once the engine warms for that long, if everything were functioning normally, the engine would run RICHER; whereas, you seem to have a LEAN condition. Possible vacuum leak.Possible fuel delivery system issue.Possible weak ignition system. Old coils (like old car enthusiasts ) tend to get weaker with age. Giving the engine choke richens the mixure, allowing a weak spark to fire more of the mixture. A band-aid to help prevent stalling in the parade, would be to increase the idle speed. Jon. Link to comment Share on other sites More sharing options...
28 Chrysler Posted July 7, 2015 Share Posted July 7, 2015 If you find out your problem is the modern fuel try blending in kerosine. This sometimes helps with heat related problems. Link to comment Share on other sites More sharing options...
Larry Schramm Posted July 7, 2015 Share Posted July 7, 2015 I had a similar problem with my truck along with a drippy carb when the truck was not running.I took the carb off, took it apart and blew out all of the jets and had something come out of the intake port to the carb from the fuel tank. Fixed the running problem and the drippy carb. Just a thought and what happened to me. Link to comment Share on other sites More sharing options...
ROD W Posted July 8, 2015 Share Posted July 8, 2015 GlennI have a 8" x 8" sheet of thin steel shielding the vacuum tank from the manifold to prevent vaporisation.. Just drill four holes where the vacuum tank attaches to the inlet manifold. This can even be bent around the front of the vacuum tank to provide more shielding from the exhaust manifold. I cut the heat pipe from the manifold to the carb and plugged the manifold end. Link to comment Share on other sites More sharing options...
Glenn Manes Posted July 8, 2015 Author Share Posted July 8, 2015 Thanks to all the great suggestions. It has been raining here in Colorado for the last few days, but as soon as the weather clears I intend to try these suggestions one at a time.I will report back if and when I discover the solution.Thanks,Glenn Link to comment Share on other sites More sharing options...
unimogjohn Posted July 8, 2015 Share Posted July 8, 2015 Glenn, if I have to pull the choke to keep the engine running when hot, it has been clogged jets or metering tubes. It does not take much to plug them up. In my 28 there are two, one long and one short and stubby, that clog up. When cleaned it runs like a top with the choke fully in. Let us know how your investigation and cure comes out. Link to comment Share on other sites More sharing options...
Marty Roth Posted July 8, 2015 Share Posted July 8, 2015 Spray WD40 or starter fluid around suspected intake gaskets and connections with the engine at idle. When you spray into a leak, the engine will speed up.Mark's comment (above) is a reliable way to seek a vacuum leak. Link to comment Share on other sites More sharing options...
Marty Roth Posted July 8, 2015 Share Posted July 8, 2015 If you find out your problem is the modern fuel try blending in kerosine. This sometimes helps with heat related problems.I find that 10% to 20% kerosine or diesel fuel helps to reduce vapor lock, as well ! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now