Quote:
Originally Posted by 330indy
Yeah
Can you imagine how bad it would be to not exactly get those valves tightly closed off, and getting a few walnut shell fragments stuck in a cylinder or cylinders.
This job is NOT for the faint of heart.
The whole carbon buildup thing is cause for pause in considering purchase of any DI car
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This part isn't scary - intake valves are closed for at least 75% of a 4 stoke motors rotation. You would have to be daft to not get the valves completely closed.
You might end up with some media residue around the valve seats that the vacuum doesn't take care of, but that's why you use walnut and not soda or glass or aluminum oxide or silicon carbide etc. If the engine eats a little walnut dust it's not going to hurt it.