WHAT IS BORE SCORING? PORSCHE 996 & 997

WHAT IS BORE SCORING? PORSCHE 996 & 997 (Episode 25) Want to see how all this started? 😃 https://www.youtube.com/watch?v=8T6GxOoezhs When I started this project I know very little about these cars. I knew that had a top speed of 175 mph that sounded super cool, but that they had an Achilles heel called the IMS Bearing which was bad, I now know that it is not the worst problem these cars can encounter........... Dun, Dun, Daaaaaaa! From Mahle Pistons To Ferrari-Esque Cylinder Liners, hold onto your wallet and your lunch 😅 I wish I got this awesome Borescope https://amzn.to/3ce2cjg See how this all started HERE 👍 - https://www.youtube.com/watch?v=8T6GxOoezhs&t=71s WEBSITE https://www.maninagarage.com/ MEMBERSHIP Join this channel to get access to perks: https://www.youtube.com/channel/UCEFm2mBdstQt95jYjFAVqPA/join AMAZON STORE https://www.amazon.com/shop/maninagarage PATREON https://www.patreon.com/maninagarage #learnonyoutube #engine #porsche911 0:00 WHAT IS BORE SCORING? 00:11 Introduction (Didn’t know much) 03:36 What is bore scoring? 04:18 What is a piston skirt? 05:20 Can you recoat your piston skirt? SOME HISTORY 06:54 Iron vs Aluminum 07:42 Solutions to the Aluminum Problem 08:47 What is Nikasil? 09:30 What is Alusil? 09:58 What is Lokasil? 11:05 Lokasil Version 1 & Version 2 12:26 What Causes Bore Scoring? 13:04 Manufacturing Tolerances 13:34 The Aging Problem… 14:16 Compromised Lubrication.. 15:06 Cold Start routine.. 15:44 Manufacturing Compromises.. 16:44 How to Diagnose Bore Scoring.. 16:47 Smokey Exhaust 18:55 Oil Consumption 19:47 Oil Analysis 20:32 Engine Noises 21:00 Visual Inspection 21:52 can you fix bore scoring? 28:28 How Do you Prevent Bore Scoring 30:06 Lube it or loose it.