EGR intake plugged
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Joined: Nov 2002
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EGR intake plugged
I have a 1976 F250 with a 360. The intake manifold is of the egr type and one of the ports is completely plugged up with carbon.
My question is: Is it possible to have this manifold cleaned internally or would it be easier to find a new one?
Any comments on this problem would be greatly appreciated.
Thanks
visual250
My question is: Is it possible to have this manifold cleaned internally or would it be easier to find a new one?
Any comments on this problem would be greatly appreciated.
Thanks
visual250
Posting Guru
Joined: Mar 2002
Posts: 2,070
Likes: 2
From: Boise, Idaho
EGR intake plugged
If you can take the intake manifold off, the answer is yes, it can be dissolved with lye. Buy drain cleaner like Red Devil Lye in the powder form. Be very careful because this stuff is like very strong acid; it will eat lots of materials (not iron) and can damage skin if left on hands.
Mix a strong solution of this lye (add lye to water, not water to lye - splash hazard) and pour it into the passage. Lye will eat concrete so protect your driveway, etc.
Mix a strong solution of this lye (add lye to water, not water to lye - splash hazard) and pour it into the passage. Lye will eat concrete so protect your driveway, etc.
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
EGR intake plugged
How I usually clean blocked passages is drill them out with a much smaller drill bit until I can fit a wire brush in there. Then stick a small wire pipe cleaner in there and whirl away. I have found once you have made a dent in one end of the passage you can usually push the plug out the other side.
Fleet Mechanic
Joined: Aug 2009
Posts: 1,771
Likes: 9
From: Western Washington
I haven't tried it but some heavy chemical should take that stuff out. Maybe plug the ports and fill the passage with carb cleaner, let it sit for a week, and then blow it out with air?
Maybe try some B12, made by Berryman chemicals. It's powerful stuff, eats caked on engine grease like nothing.
Sam
Maybe try some B12, made by Berryman chemicals. It's powerful stuff, eats caked on engine grease like nothing.
Sam
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