WHAT IS BORE SCORING? PORSCHE 996 & 997

Описание: WHAT IS BORE SCORING? PORSCHE 996 & 997 (Episode 25)

Want to see how all this started? 😃    • PORSCHE 996 Carrera DIY Restoration  

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 👍 -    • PORSCHE 996 Carrera DIY Restoration  

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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.