When I bought my Porsche Cayman 987 I had no idea the journey I would be going on, not least the bore score issues and the full rebuild that followed but the journey I would make on Youtube. Being able to reach thousands of people all around the world. It got me thinking, If I made this mistake when buying then others would be doing they same. Facebook and forums confirmed this, I see daily posts from new Porsche owners worried about their cars, asking advice and getting mixed results.

In this videoI wanted to talk all about bore score, how I managed to buy a Porsche Cayman with bore score have it rebuilt and what happened next. Finally I wanted to share my advice for anyone looking to buy one of these amazing cars.

As a side note I wanted to say that this video does not just apply to the Porsche Cayman 987 but also its bigger brother the 911. These cars are all unfortunately prone to engine failure and below is a list of all the cars known widely to have this inherent design flaw.

Certain models are more susceptible than others to Porsche cylinder bore scoring. Porsche 911 bore scoring in 3.6 and 3.8 liter M96.03, M96.05, and M97.01 engines and Porsche Cayman bore scoring in 3.4 M97.21 engines are most common; below are all the models that can experience this issue:
Porsche 996 bore scoring
Porsche 997 bore scoring
Porsche 911 bore scoring
Porsche 987 bore scoring
Cayman bore scoring
Boxster bore scoring (3.4 M97.22 engine only)

I do hope this helps somebody looking to buy one of these cars. I love my Cayman and still think it represents amazing value for money but I wouldn't want to buy another Porsche that was at risk of the bore score issue.

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Thanks for watching

Joe 😊