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Any tricks for softening carbon caked onto aluminum? #2450801 02/12/18 06:46 PM 02/12/18 06:46 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo OP Too Many Posts
DaytonaTurbo OP Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	I've got some pistons that are caked heavily in carbon, is there anything good I can soak them in to soften things up instead of jumping straight to scraping?

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2450803 02/12/18 06:51 PM 02/12/18 06:51 PM
Joined: Oct 2005 Posts: 8,861 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,861 Ontario, Canada	Blast cabinet !!

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2450809 02/12/18 07:00 PM 02/12/18 07:00 PM
Joined: Dec 2005 Posts: 11,526 Fulton County, PA C CMcAllister Mr. Helpful
CMcAllister Mr. Helpful C Joined: Dec 2005 Posts: 11,526 Fulton County, PA	Scrap the heavy stuff. Solvent or 2+2 + scotchbrite to finish. Good oven cleaner might work well. Never tried it though. If the results don't match the theory, change the theory.

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2450818 02/12/18 07:19 PM 02/12/18 07:19 PM
Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,040 Lincoln Nebraska	carb soup. tho it ain't what it used to be (EPA regs). live every 24 hour block of time like it's your last day on earth

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2450847 02/12/18 08:00 PM 02/12/18 08:00 PM
Joined: Jul 2008 Posts: 361 Canada onig enthusiast
onig enthusiast Joined: Jul 2008 Posts: 361 Canada	Lacquer thinner may work. 69 Dart

Re: Any tricks for softening carbon caked onto aluminum? [Re: onig] #2450882 02/12/18 09:15 PM 02/12/18 09:15 PM
Joined: Dec 2013 Posts: 4,669 Wichita G GY3 master
GY3 master G Joined: Dec 2013 Posts: 4,669 Wichita	Carb cleaner. '63 Dodge 330 11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs. 10.01 @ 133mph with a 250 shot of nitrous an a splash of race gas. 1.36 60 ft. 3,700 lbs.

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2450929 02/12/18 10:28 PM 02/12/18 10:28 PM
Joined: Aug 2003 Posts: 43,119 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,119 Bend,OR USA	Soak them in soapy water overnight upside down with the top in the water but not into the ring lands Soak and scrape until clean as new Do not soak for days though either Last edited by Cab_Burge; 02/12/18 10:29 PM. Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Any tricks for softening carbon caked onto aluminum? [Re: Cab_Burge] #2450970 02/12/18 11:06 PM 02/12/18 11:06 PM
Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio dartman366 I Live Here
dartman366 I Live Here Joined: Jan 2004 Posts: 13,247 Mt. Vernon, Ohio	Originally Posted By Cab_Burge Soak them in soapy water overnight upside down with the top in the water but not into the ring lands Soak and scrape until clean as new Do not soak for days though either I had been told the same thing years ago. Light travels faster than the speed of sound,,,this is why some people seem bright untill you hear them speak.

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2451002 02/12/18 11:45 PM 02/12/18 11:45 PM
Joined: Sep 2003 Posts: 2,175 Duloc T The Shadow top fuel
The Shadow top fuel T Joined: Sep 2003 Posts: 2,175 Duloc	paint stripper . the jelly type works good Last edited by The Shadow; 02/13/18 08:48 AM.

Re: Any tricks for softening carbon caked onto aluminum? [Re: GY3] #2451023 02/13/18 12:16 AM 02/13/18 12:16 AM
Joined: Feb 2003 Posts: 18,582 Rust Belt, SW PA Silver70 I Live Here
Silver70 I Live Here Joined: Feb 2003 Posts: 18,582 Rust Belt, SW PA	Originally Posted By GY3 Carb cleaner. This works for me, let it soak in and light scuff pad takes it off pretty easily. 68 Road Runner, 69 Belvedere, 71 Challenger Vert 340 barracuda, 01 Ram CTD, 95 Ram, 04 Ram, 85 Daytona turbo Z 66 GTO, 06 Magnum RT AWD. 07 Ram CTD, 07 Ram

Re: Any tricks for softening carbon caked onto aluminum? [Re: Silver70] #2451027 02/13/18 12:21 AM 02/13/18 12:21 AM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	I use heat riser solvent and a wire brush, the GM stuff works good. Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: Any tricks for softening carbon caked onto aluminum? [Re: Silver70] #2451028 02/13/18 12:21 AM 02/13/18 12:21 AM
Joined: Jan 2003 Posts: 4,395 The Pale Blue Dot Skeptic master
Skeptic master Joined: Jan 2003 Posts: 4,395 The Pale Blue Dot	Trans fluid and mineral spirits 50/50.

Re: Any tricks for softening carbon caked onto aluminum? [Re: CMcAllister] #2451042 02/13/18 12:58 AM 02/13/18 12:58 AM
Joined: Mar 2011 Posts: 167 Maryland R ro23_j member
ro23_j member R Joined: Mar 2011 Posts: 167 Maryland	Agree, Berkebile 2+2.

Re: Any tricks for softening carbon caked onto aluminum? [Re: fourgearsavoy] #2451059 02/13/18 01:40 AM 02/13/18 01:40 AM
Joined: Oct 2003 Posts: 1,134 OHIO THE HEART OF IT ALL 64hemi330sedan super stock
64hemi330sedan super stock Joined: Oct 2003 Posts: 1,134 OHIO THE HEART OF IT ALL	Originally Posted By fourgearsavoy I use heat riser solvent and a wire brush, the GM stuff works good. Gus lol! treed. this stuff works. we sell a lot of it at work. I'm a broken chevy fixer parts supplier.

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2451065 02/13/18 01:54 AM 02/13/18 01:54 AM
Joined: Jul 2004 Posts: 3,804 Arlington, Texas B bobby66 master
bobby66 master B Joined: Jul 2004 Posts: 3,804 Arlington, Texas	Diet Coke and Marvel Mystery Oil. Half and half.

Re: Any tricks for softening carbon caked onto aluminum? [Re: Cab_Burge] #2451106 02/13/18 10:29 AM 02/13/18 10:29 AM
Joined: Jul 2008 Posts: 361 Canada onig enthusiast
onig enthusiast Joined: Jul 2008 Posts: 361 Canada	Originally Posted By Cab_Burge Soak them in soapy water overnight upside down with the top in the water but not into the ring lands Soak and scrape until clean as new Do not soak for days though either Why not the ring lands, what will happen? 69 Dart

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2451188 02/13/18 02:20 PM 02/13/18 02:20 PM
Joined: Jan 2003 Posts: 7,477 Minnesota Hemi_Joel master
Hemi_Joel master Joined: Jan 2003 Posts: 7,477 Minnesota	berrymans B12 carb spray will literally melt it right off. It is way better and faster than anything else you can get right now. DOn't get the dumbed down California version, B12-C. [img]http://i.imgur.com/boeexFms.jpg[/img] 31 Plymouth Coupe, 392 Hemi, T56 magnum RS23J71 RS27J77 RP23J71 RO23J71 WM21J8A I don't regret the things I've done. I only regret the things I didn't do. "Wise men talk because they have something to say; fools because they have to say something. ~ Plato"

Re: Any tricks for softening carbon caked onto aluminum? [Re: DaytonaTurbo] #2451413 02/13/18 10:22 PM 02/13/18 10:22 PM
Joined: Feb 2003 Posts: 21,318 Manitoba, Canada DaytonaTurbo OP Too Many Posts
DaytonaTurbo OP Too Many Posts Joined: Feb 2003 Posts: 21,318 Manitoba, Canada	I'll try giving some of the odds and ends a try. I've got an obsolete 2-stroke engine apart on my desk and the ring grooves weren't bad at all but the underside of the piston is just caked in carbon.

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