Re: Packard TSB 56T-20 - Low Oil Pressure

Posted by Eric Boyle On 2009/11/4 23:51:35

It's thinnest on 320's, I don't know if it's just a 320 issue or not. The area IS thicker on the 374, so they may have been aware of it and fixed it. If I didn't know any better, I'd say that it's a round bolt head from the inside forms, but I don't know if they used one there. That's what it feels like though, a rounded indentation in the inner side of the coolant wall.