How To Clean Carbon Out Of Intake Manifold
| ||||||||||||
| Nov 21st, 2011 | ||||||||||||
| msweldon Member Posts: 657 | Not exactly Fiero related but Fiero owners are some of the most knowledgeable... When replacing injectors on my DOHC the UIM, although slightly oily/dirty, the intake was relatively simple to clean. However, I pulled the aluminum upper and lower intake manifolds on my mothers 95 Lincoln to replace gaskets, 4.6 DOHC V8, and the inside of all 16 of intake runners, plenum and lower manifold are COATED with carbon. pics to come.. The problem is that although I can probably clean the most of the runners and LIM with a plastic brush or plastic brush on a flex extension and drill, how can I clean the carbonization out of the plenum? Are there any cleaners out there that will loosen up the carbonization enough to pressure wash it out of the plenum? Please advise... IP: Logged | |||||||||||
| PFF System Bot | ||||||||||||
| Pyrthian Member Posts: 29546 | SeaFoam thru a vacuum port good stuff most of that junk comes from a combination of oily gasses from the PCV and sooty crap from the EGR IP: Logged | |||||||||||
| lateFormula Member Posts: 992 | If you've got the plenum off the engine, take it to a local engine/machine shop and have it hot tanked. You'll get it back looking like the day it came out of the mold. IP: Logged | |||||||||||
| fieroguru Member Posts: 11656 | Easy Off oven clearner works wonders for cleaning carbon buildup from the insides of intake manifolds. If you leave it on too long, it will turn the aluminum a dark grey, but not much of an issue for inside the runners. IP: Logged | |||||||||||
| msweldon Member Posts: 657 |
That depends on the solution they use... some solutions can turn aluminum into a foamy film on top of the solution... Does anyone know if Dean (Whodeanie on the forum) can hot tank? His shop is only a few miles north... IP: Logged | |||||||||||
| msweldon Member Posts: 657 |
Manifold is already off the engine and although Seafoam is good stuff the amount of carbon on this intake is going to require hands on or professional help.. IP: Logged | |||||||||||
| msweldon Member Posts: 657 |
I thought about that however its the plenum I cannot access, the bundle'O snakes intake runners are accessible, however, the plenum has no easy access into it.. I don't even want to know how much buildup is in there.. Do a quick search for "Lincoln Continental" or "Mark VIII intake manifold" on google to see the nature of the intake.. Here's a pic from ebay on the exact manifold turned upside down... Could those two round plugs be removable plugs perhaps? IP: Logged | |||||||||||
| 1fatcat Member Posts: 1519 | You don't really NEED to clean it. The carbon won't hurt the performance very much. I doubt your mom would be able to tell the difference. Make sure any egr passages are clear, or idle air passages, but the carbon in the main runners isn't really an issue unless you plan to race that big old lincoln....that is of course, unless the carbon is SO thick that it's blocking more than 10% of the port diameter. IP: Logged | |||||||||||
| msweldon Member Posts: 657 |
Several ports I would probably wager that about 10% of it is blocked... If I've got the damn UIM and LIM off, several hours+ to get off, I figured I'd do it right... IP: Logged | |||||||||||
| 1fatcat Member Posts: 1519 | Well, if you insist.... Take it to a shop that has a hot tank and have them cook it out. You may not be 100% satisfied with the results, as even a cooker won't get it ALL out. Edit: A "cooker" or "hot tank" is just an industrial sized dish washer with a turn table (like your microwave). It relies on hot water and detergent mix sprayed onto the part under high water pressure. The water will not get into the places you can't see (not under pressure anyways), and unless the guy flips the part around mid way through the process, the high pressure water may not even get to the parts you can see. The only two ways to get it sparkeling clean is: [This message has been edited by 1fatcat (edited 11-21-2011).] IP: Logged | |||||||||||
| redraif Member Posts: 1458 | Its hard when you can't really get to the stuff. Just spray it down with TB/intake cleaner and use one of those pipe cleaer type bushes that are bendable... might allow you to knock more loose where you can't get a standard tooth brush. My mom had some crazy kitchen brush when I was a kid. It was about 2 feet long, bendable, had medium bristles that were about 1" to 1.5 " diameter... I wish I could get one now for stuff like this... Darn metal wire holding it rusted up & fell apart over time. ------------------ IP: Logged | |||||||||||
| PFF System Bot | ||||||||||||
| msweldon Member Posts: 657 | Has anyone ever seen manifold plugs such as these? Are they reuseable? emm dub IP: Logged | |||||||||||
| 1fatcat Member Posts: 1519 |
I have never seen a plug like that in a local parts store. I've been wrenching on cars and trucks for over 20 years. You can order them through Ford, but wait 1~2 weeks. That plug NEVER gets removed for service work. You are digging deeper than you need to. IP: Logged | |||||||||||
| ricreatr Member Posts: 577 | just pop those plugs and WELD them shut! bg makes a tb cleaner spray that is mighty powerful. spray a whole bunch in and plug off the ports for several days. that will - help. IP: Logged | |||||||||||
| Bruce Member Posts: 2189 | Doesn't Roger Garrison clean and port plenums anymore? IP: Logged | |||||||||||
| DropTopBird Junior Member Posts: 7 | Seafoam is great stuff, but the Mopar upper combustion chamber cleaner is surprisingly even better. This product actually expands instead of staying a liquid after you kill the engine so it gets in all the areas. Other than that it works just like seafoam in the top end of the motor. I know you already have the manifold off, but I just thought I would throw that out there for any others who might want to clean up their engine. IP: Logged | |||||||||||
| Nov 22nd, 2011 | ||||||||||||
| Cooter Member Posts: 6325 | Get a plastic tub big enough to fit the intake into. Put the intake in the tub, fill it with diesel fuel, put the cover on it and let it soak for a couple of days. Remove the intake and pressure wash it to clear out the liquified goo. Repeat as necessary. IP: Logged | |||||||||||
| lateFormula Member Posts: 992 |
Kerosene would likely do the job as well as diesel. Just another option... IP: Logged | |||||||||||
| rogergarrison Member Posts: 49601 |
Wrong guy. I never did. I will paint the outside though IP: Logged | |||||||||||
| steve308 Member Posts: 3660 | Car-Quest sells an outstanding product. It's an aerosol can "detergent" not a solvent. They also have a 24 inch long extension tube (think spray can wd-40 red tube) that is plugged on the end but has splits along the tube to allow the product to be injected deep into the intake. Warm the engine – squirt it down and let is "soak" in for 10-15 min. Start and the Fog begin!! You also may wish to check out the "S-Tool" they sell for a more "complete" cleaning. IP: Logged | |||||||||||
I do body and paint work, only mech work is on my own cars.How To Clean Carbon Out Of Intake Manifold
Source: https://www.fiero.nl/forum/Archives/Archive-000001/HTML/20130314-2-119878.html
Posted by: pylantthereave.blogspot.com
0 Response to "How To Clean Carbon Out Of Intake Manifold"
Post a Comment