The routing of the fuel lines in the photo is exactly as my 270 (a 43 by engine SN) so I don't think moving them or insulating them is an issue.
I read the link from the carb shop and its basically saying to do what you would do for a flooded engine (well, its in my manuals).
My manuals procedure for a flooded engine:
Keep the ignition OFF
Pull the throttle (my truck has a manual throttle cable, I think it was a common item in the 40s) full out
Push the starter foot pedal for 10 seconds.
Shut the throttle cable.
Start engine normally.
This basically would open the throttle fully and allow just air into the intake to try and evaporate the fuel in the intake (the air under the hood would still be quite warm and with no gas in the air it would not drop in temp). Since you are not using the accelerator pedal the accelerator pump would not actuate (the linkages were designed that way).
One other thing I was told for 'hard starting' was after you stopped to pull the throttle cable out, opening the carb fully to air and allowing the carb/intake to 'cool'. Not sure if I buy that.
One thing I would check not mentioned would be if your heat riser was opening/closing properly. If its stuck 'shut' it may be heating the intake all the time.. making it to hot when at idle. Easy to check the spring and the if the shaft is free.
Last edited by pfarber; 05/31/2014 9:29 PM.
