Re: Electricaal issue ..41 Packard no current

Posted by TxGoat On 2023/5/14 20:11:33

The vacuum line from carb to distributor shouldn't have any ongoing airflow through it. If it does, your vacuum advance unit is probably bad. Most older ones are. Once the diaphragm starts leaking, they continuously leak air to the carburetor and your automatic spark advance will be severely compromised or inoperative. It could be the cause of a hissing or whistling sound. I'd check the advance unit and replace the kinked line. A non-working vacuum advance will cause lower performance, a hotter running engine, and reduced gas mileage. For best performance, easiest starting, smoothest idle, and best fuel economy, both the vacuum and centrifugal advance need to be working properly.