03-04-2016, 12:22 AM
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#5
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Drives: 2010 Camaro
Join Date: Nov 2009
Location: Denver
Posts: 1,383
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We can guide you through step by step if you like to do this yourself w/out the blasting. The gun cleaning brushes and solvent soak method is as effective and only takes app. $20 worth of purchases.
Likewise, at Harbor Freight they sell the blaster, crushed walnut shell media. and you can make the port adapter from a shop vac end.
Let us know and were happy to share! You may want to dyno first to document the power gains so you have a before and after. As the HP gain can be significant! As the degradation form the coking is gradual, most never realize the power drop, but are really surprised after the cleaning service. And to warn again, the solvent based engine running procedures DO cause damage if the coking has reached the point of the deposits becoming hard and crystalline. These deposits when loosened cause scouring and can result in a bent valve if a large enough piece breaks loose and becomes trapped between the valve and seat like this picture shows:
"]http://s1083.photobucket.com/user/tech17/media/valve%20bent%20by%20coking_zpsjzljxjcn.jpg.html] [/URL]
And here is the PCV orifice barb showing how they clog:

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