Quote:
Originally Posted by flinchy
logical analogy, but if the carbon was chipped off by hand and not extracted, it would be spat out through the exhaust after a couple of revs tops, it shouldn't be anywhere near large enough a chunk to damage a valve either.
still, definitely better off removing it properly anyway.
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That's not how we do the carbon cleaning. The walnut blasting machine has a vacuum attached to the intake port, so everything is pulled out.