383 engine noise question
Well the guy from the engine rebuilder stopped by and listened to the engine. He thinks it's piston slap. Far as I can tell from what I have read its' either that or rod knock. Took a look inside the cylinder thru the plug hole to see what I could see on the cylinder walls. Some vertical lines on #2 cylinder wall in only one area on the knocking cylinder. Couldn't see other side of cylinder to see if there was a mirror image across from the area without putting a mirror on the scope. Didn't want to risk dropping the mirror in cylinder. Sent photos to shop. I did look at another cylinder, #3, that was also down at the same time for comparison. #3 had vertical lines on whole cylinder. Unfortunately I haven't seen open engines to know what's normal so I'll see what the engine shop says. First photo is #3 second is #2.
Well the guy from the engine rebuilder stopped by and listened to the engine. He thinks it's piston slap. Far as I can tell from what I have read its' either that or rod knock. Took a look inside the cylinder thru the plug hole to see what I could see on the cylinder walls. Some vertical lines on #2 cylinder wall in only one area on the knocking cylinder. Couldn't see other side of cylinder to see if there was a mirror image across from the area without putting a mirror on the scope. Didn't want to risk dropping the mirror in cylinder. Sent photos to shop. I did look at another cylinder, #3, that was also down at the same time for comparison. #3 had vertical lines on whole cylinder. Unfortunately I haven't seen open engines to know what's normal so I'll see what the engine shop says. First photo is #3 second is #2.
