Removing Carbon from exhaust elbow: an idea

For decoking iron cylinder heads, caustic soda was the way to go. It will destroy aluminium though.
Ruairidh.
 
For decoking iron cylinder heads, caustic soda was the way to go. It will destroy aluminium though.
Ruairidh.


A lot of the vw/audi crowd have been using mr muscle over cleaner to clean up their partially seized vnt/vgt turbo vanes, not heard anything bad yet.
 
I remember a guy cleaning a piston with some goop. Forgot it over night and it no longer looked like a piston. His face was a picture, as it was an aircraft piston and not cheap.
 
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