Re: Rear main seal instalation 1937 120

Posted by Owen_Dyneto On 2019/9/3 15:10:57

My Motors spells it out quite clearly; you don't have a conventional rear seal, just a simple and effective crankshaft oil slinger which is an intergral part of the crankshaft (a typical arrangement of the era). Whatever someone erroneously stuffed into the slinger cavity should be removed. Make sure the slinger groove drain hole back to the oil pan is clear.

It wasn't until postwar that Packard eliminated the slinger and went to a graphited cord rear crankshaft seal.