Cleaning upper and lower plenums
#1
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Cleaning upper and lower plenums
Hello all. Well I have my short block built and should be receiving the rest of my parts next week. Now the question is what did you all use to clean the gunk and tarnish out of your intake manifolds. Once I get some pictures and learn how to post I will post pics of engine. Pretty wild color. Lol
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well so far I have found mineral spirits, and wood stripper. Stay away from oven cleaner and other caustic cleaners. Going to look here to see if any of the shops have a sonic tank or jet tank with aluminum cleaner.
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I have a plastic "mortar mixing tray", which is a large plastic tray. I soaked the plenum in a strong mixture of dish-washer liquid and water. Then I scrubbed with a bottle brush. In the end, I still had some perfectly degreased "dirt" in places, which I just scrapped out (it breaks into dust) with a wooden stick (to avoid marring the aluminum).
I didn't remove the end caps (3VZE) from the plenum, and I could have done a much better job if I had. As best I can tell they're 40mm freeze plugs, Toyota 96411-44000, less than $10.
I didn't remove the end caps (3VZE) from the plenum, and I could have done a much better job if I had. As best I can tell they're 40mm freeze plugs, Toyota 96411-44000, less than $10.
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I take mine to the carwash and use high pressure to clean it out. For all of the hose connections, I use drill bits and twist by hand to get them cleaned. On the Plenum, I use flat blade screw drivers as mini scrapers to get the big chunks of carbon broken loose then use the high pressure wand to get the rest out.
#10
i took my upper plenum to a machine shop and they put it in there ultrasonic parts tank cleaner and when i picked it up the next day it was almost like brand new inside. but mine had like an inch of goo in it . I forgot what the cost of it was
Last edited by 85toy4runner; 12-19-2014 at 05:33 PM.
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