A video for good measure
Nice! What was your preferred cleaner of choice?
Initially I used brake cleaner on a brush. It did an okay job, but it was quite crusty. So I resorted to a dental scalpel which could get under the carbon without scratching anything. Then I followed with scotchbrite saturated in brake cleaner. This pretty much got everything. But I was still not happy so I used a water based wheel and tire cleaner which got it to the final point you see in the pics. A very thorough rinsing in hot running water and then dried on the baseboard heater. The IAC motor had a build-up that you could see on the seat that was only allowing about a 60% contact.