The ALL Florida Online Corvette Club - View Single Post - 427 engine (part 2)

**Rich Z** · 05-16-2019, 08:59 PM

Speaking of drivetrain noise, I'm pretty much convinced that the pilot bushing is the smoking gun here.

I was able to bring that old pilot bushing home with me, and the pictures are showing some pretty awful gouging on the interior surface of the bushing. And that bushing is definitely magnetic, so that sintered steel bushing rubbing against the stub of the input shaft to the torque tube obviously were making some music together. Had the bushing been pure brass as I had requested, then I likely wouldn't have even heard anything.

Still not sure what exactly CAUSED the gouging, though, but it looks like the tech who installed this stuff back in 2012 wasn't all that gentle about it. But was that the real root of the problems I had after that repair?

05-16-2019, 08:59 PM	#2318
Rich Z Internet Sanitation Engineer Join Date: Mar 2006 Location: Crawfordville, FL Posts: 15,125 Name : Rich Zuchowski	Speaking of drivetrain noise, I'm pretty much convinced that the pilot bushing is the smoking gun here. I was able to bring that old pilot bushing home with me, and the pictures are showing some pretty awful gouging on the interior surface of the bushing. And that bushing is definitely magnetic, so that sintered steel bushing rubbing against the stub of the input shaft to the torque tube obviously were making some music together. Had the bushing been pure brass as I had requested, then I likely wouldn't have even heard anything. Still not sure what exactly CAUSED the gouging, though, but it looks like the tech who installed this stuff back in 2012 wasn't all that gentle about it. But was that the real root of the problems I had after that repair? __________________