Re: 1948 Packard 22nd Series Six Touring Sedan Backfiring and lack of power

Posted by Tim Cole On 2012/9/4 16:55:51

Dear mearch:

Any backfire that can break a starter housing indicates a serious problem.

You need to go through all the systems, firing order, timing, valve timing, and check everything.

The best scenario is advanced ignition timing. But I'm not sure if there is a way to foul up the spark plug wires to cause your problem.

Even a bad primary connection could cause that thing to open prematurely half way up on compression. So check everything.

Hope this helps.