Cetane Posted August 18, 2006 Share Posted August 18, 2006 Does any one have any tips or tricks to cleaning out the carbon from the intake manifold. I have used a wire brush to remove as much as possible but there is still lots remaining. Acetone works wonders but it would take tons of it to clean this manifold. Thanks! Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted August 18, 2006 Share Posted August 18, 2006 I wish I could say that I get all my intakes squeaky clean.... I wish.... Some varsol/ brake clean/ engine shampoo to loosen up the stuff that will loosen up - do the absolute best you can do with the pressure washer.. If you are recovering from any exhaust sooting, this is about the best you are going to hope for in most shops... Get rid of the loose stuff and pray... Anyone that's experienced that wierd shit after an EGR change can vouch for that. I'd love to try one of those ultrasonic cleaning baths but I don't see one in my operating budget for a long time.... Does this sound crude??? Yes.... But there is a need to be both realist and fatalist.... Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted August 18, 2006 Share Posted August 18, 2006 I made up some scrapers out of pieces of coat hangers. The metal was soft enough that I could take a hammer and flatten the end to make a wide, flat scraper edge and another like a knife. I actually sharpened them with a file. The thin coat hanger material allows for bending into the right shape to access all around the EGR mixer. It works fairly well. If the carbon is wet and sticky I discovered that Brakleen will dry it out making it scrape-able once you have removed the bulk of the deposits. I too don't get them "squeaky clean." Quote Link to comment Share on other sites More sharing options...
Cetane Posted August 18, 2006 Author Share Posted August 18, 2006 Dont bother with the ultrasonic. We have one and after 4 hours there was no change. There was no change after the parts washer or hot tank.The exterior sure looked nice though. The bulk of the deposits are in the "mouth" so maybe just a good scraping will be good enough. I had heard people sealing off the ports and filling the intake with a chemical like simple green&water and a couple hundred BB's. Letting it soak in with an occasional shaking to loosen up the deposits. I wasnt sure if that or something similar was working for you guys. Thanks Quote Link to comment Share on other sites More sharing options...
pcassidy111 Posted August 19, 2006 Share Posted August 19, 2006 Try Chrysler Top Cylinder cleaner spray or Delco X66A or X66P. Both of there products are made to put into running engines but they also work well when sprayed onto carbon and allowed to soak in and soften it. I use scrapers or a brass vegatable brush to help remove it. I use brake clean to wash away the loose carbon Quote Link to comment Share on other sites More sharing options...
pcassidy111 Posted August 19, 2006 Share Posted August 19, 2006 Had a small bead blaster that used walnut shells to clean intake valve deposits. Safe because any media that was not removed with the vacuum was burned up in the engine. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted August 19, 2006 Share Posted August 19, 2006 Those cleaners sound similar to Fords Combustion Chamber Cleaner. And who remembers the ol' carbon blaster Ford sent to all of the dealers in the early nineties? Ours is still in the box, unused. Quote Link to comment Share on other sites More sharing options...
Dr. Giacoma Posted September 26, 2006 Share Posted September 26, 2006 i find that when i have the egr off i like to jump in the truck and just let it scream 3000rpm and watc h it all shoot out. neat trick for the freinds too, ask them to look for the exhaust leak and BOOOMMMMMMMMMM soot madness Quote Link to comment Share on other sites More sharing options...
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