Re: 1952 200 deluxe with 327ci dies when warm

Posted by DavidPackard On 2022/9/8 19:38:29

Mike52_200, IMO PackardDon and Wat_Tyler are on the right path . . . float bowls of this era were vented to the atmosphere, while by the time the WCFB was released, the venting was within the air-horn. The difference between the two designs would be; the air horn vent design is tolerant to air filter restriction, while the atmospheric vent design is quite sensitive to air filter blockage. I’ve used the term ‘air filter blockage’, but don’t think of that as a completely dirty filter . . . it’s more of a blockage that the carburetor was not designed for.

The only two checks I would make is the float level and the idle mixture adjustment . . . adjust the mixture with the air filter off. If the filter is clean and is sized correctly there should be very little difference in idle speed when the filter is finally installed.

I would think a 14 X 2 or 14 X 3 filter would be acceptable for a 327, but remember they will need to be replaced much more frequently than suggested in cars built in the 60’s. When in doubt, err on the side of more filter area, especially if you have an era correct atmospheric vented carburetor. Please describe the current filter in more detail.

dp