Re: 1929 packard 626 fuel tank sending unit

Posted by Marty or Marston On 2011/6/24 17:23:41

Not sure of the best way, but I needed to repair mine (seehttps://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?topic_id=6514&forum=10. Before I replaced the broken tubes, I very lightly sandblasted the unit and then soaked it in a weak phosphoric acid solution (Krud Kutter) for half an hour to remove any scale that might be on the inside of the tubes. Then after finishing the repair, I flushed everything with hot water and blew it dry with compressed air.