Engine 1987 spun Camshaft Bearing? Used a borescope through distributor.

[kuhl0040]

Hi All,
Anyone know what the deformed metal is? I used a borescope to take these videos. They guy I bought car from was doing a track day and said he all of a sudden lost oil pressure so he drove it in and sold it to me. I am trying to figure out why. There is also a 0.070 inch hole in oil galley plug so get oil on cam/distributor gear. Seems like a big hole?

Cam bearing video

View: https://youtu.be/BEFRviCxxQs


Oil Galley hole video

View: https://youtu.be/WtohXy31gzU

Any thoughts? Thanks, Tyler

 

[2000xp8]

While I have no clue to what we are seeing in the pics or video.
I'm not sure it really matters.
He lost oil pressure and drove it home. That kinda says enough, it needs to come apart.
It's rare and almost unheard of that any oil pressure issue be repaired without a tear down.

Your only real hope is that he was judging it by a stock gauge and the sender doesn't work.
Me personally since it's already been run, i'd remove the stock sender, hook up a real gauge and see where the pressure goes.

 

[kuhl0040]

I used a borescope down through the distributor hole, the oil galley plug with hole in it is the one right behind the distributor gear, seems like people drill a hole in this galley plug to spray oil on cam/distributor gear for racing. I turned borescope to the left when looking straight on so down the camshaft and saw the deformed metal. Seems like a spun cam bearing, just hopeful thinking someone would tell me otherwise. I do get like 30 psi oil pressure when using a drill to spin oil pump with a manual pressure gauge, but when idling its around 15-20 psi.

 

[billison]

How’s it act when you start it?

 

[kuhl0040]

Starts and runs fine, can't really hear any loud knocking or anything

 

[billison]

So it sounds fine, gets oil pressure..

Did you cut open the oil filter and check for metal shavings?

I wonder if it’s fine.