The Process

At Carbon Doctor we have adopted a tried and tested method of cleaning the carbon from your valves and inlet ports. Walnut shell blasting has been used for the better part of the century to clean sensitive components ranging from pc boards to jet turbines. This is also important when used in the cylinder head of a vehicle as the majority of parts are made of aluminium which is highly sensitive to surface changes.

Using the right size and density, the walnut shell is blasted into the intake track creating a clean surface whilst preventing any damage to sensitive engine components. The process is as follows:

1. Removal of inlet manifold following manufacturers procedures.
2. Inspection of the valves and rear of the throttle body.
3. Closing of the valves on the port to be worked on by crankshaft rotation..
4. The carbon blast procedure is conducted whilst simultaneously vacuuming carbon deposits and walnut shell. This procedure is totally self-contained and does not create further clean-up work in the engine bay.
5. Repeat for the rest of the ports.
6. The inlet manifold is then replaced using new factory manufactured gaskets.

Carbon Doctor uses this process as it is both cost and time effective, guaranteeing a same-day turnaround in order to get the vehicle back on the road. Other methods currently used necessitate the use of strong chemicals and metal brushes. This unorthodox method requires the inlet to be soaked overnight creating both a time delay for the customer as well as facing corrosive risks on aluminum components.