Re: Fuel Pump Leak?

Posted by HH56 On 2023/8/3 22:01:57

You might check for a suffix letter or some type symbol like a star stamped at the front or end of your motor number.

Packard usually added a suffix if there was some change from the original as introduced spec. Some changes have to do with a particular component construction or a substitution if a part was in short supply and something different was installed. Postwar years also had a suffix for changes in oil pan capacity and prewars probably did too. Some but not all the suffix meanings are found in service letter articles. If not mentioned perhaps someone on the forum has a different bulletin and can say what a particular letter or symbol means.

Symbols were most often used in denoting something was over or under sized in machining and a special part is needed if the item is replaced. Those were only on the very few engines affected.