Porsche Engine Diagnostics: Engine Vacuum Leaks - with Tony Callas

In this episode Tony Callas of Callas Rennsport will familiarize the audience with simple, but effective Engine Vacuum Leak testing methods: CR Tools Crankcase Manometer and a smoke tester. Learn how to conduct the tests, interpret the readings and observations and use them to your advantage in the process of troubleshooting Porsche engines including problems associated with air oil separator (AOS) and other engine systems.
Learn how crankcase manometer readings are a good indicator of the health of your engine and why smoke testing your Porsche engine for vacuum leaks are valuable tools to extending the life of your Porsche Boxster, Cayman, or 911 engine.
This information is very relevant with the prevalence of cylinder bore scoring in Porsche engines with Alusil and Lokasil cylinder blocks. Addressing common vacuum leaks that can lead to cylinder bore washdown caused by excess fuel due to over-enrichment is the first thing you can do as a Porsche owner to help extend the life of your Porsche engine.
Tony Callas is the owner and CEO of Callas Rennsport in Torrance, California. He is also the Technical Director for The Porsche Club of America. Callas Rennsport, in addition to service work, restores classic collector cars including vintage Porsche 911s, 914s, and 356s, and is one of two premier shops in the country that service Porsche 959s. Tony grew up in his father’s shop, Rennsport Porsche Works in Texas and was servicing Porsches at 10 years old, rebuilt his first engine at 16, and at 18 went to the Porsche Factory School and started working in racing. He’s worked for Roock Racing, Seikel Motorsport, Champion Racing, Rohr Motorsport, Reiser-Callas Rennsport, Peterson White-Lightning, and earned wins at the 24 Hours of Daytona and Le Mans, where Tony was Mechanic of the Year for Porsche.

[@jparker1737]

Thank you for explaining this in such detail.

[@lnengineeringllc]

You're very welcome!

[@briansturgill5905]

Nice! Have been tracing a P1126 on my Boxster S. Have replaced everything that would do that and even Dealer can’t figure it out. Gonna be hard to pass emissions soon. So frustrated.

[@lnengineeringllc]

Finding an independent shop experienced with these models like your Boxster will likely be better than the dealership as dealers work on new cars more often than one of these cars.

[@MowSow]

Will there be a difference in the normal readings between a stock 3.4L 06 Cayman S and my rebuilt LN 3.8L engine ?
Will the normal readings be higher or lower for a bigger displacement rebuild like mine!?

[@lnengineeringllc]

Assuming you are using a Genuine Porsche AOS and conventional piston rings, it should read between 4-6 inches of water column.

[@Dawe957]

Amazing video 👌👌👌

[@lnengineeringllc]

Thanks!

[@RicReyna47]

On my 997 2007 3.6, I have a CEL light on, and recently, the camshaft end plug has popped off for the 3rd time. What is causing this to happen?

[@lnengineeringllc]

Likely what is the cause for this is if the cam covers were resealed and too much sealant was used and that causes a restriction and the plug pops out. If someone happened to replace the lifter carrier and used sealant under it (where none should be used), this too could cause this issue.