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09-22-2012, 11:13 PM
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CC Member
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Join Date: Nov 2007
Cobra Make, Engine: Kirkham - KMP493
Posts: 129
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Not Ranked
carbon on piston tops
I'm rebuilding an engine and would like to take advantage of some downtime by cleaning up my components that will go back in the engine. Does anyone know how to get the carbon buildup off the top of the pistons? Someone wrote on some other site to soak them in Acetone. I tried that and it didn't work at all.
On a weird side note, I'm designing a billet aluminum 302 for Kirkham Motorsports. I'd be curious what improvements you would advocate putting into a custom designed engine. I'm speaking mainly of the block. The components will be off the shelf. Things like piston cooling or what size of oil galley's. Stuff like that.
C. Cindrich KPM493 |
09-23-2012, 02:56 AM
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CC Member
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Join Date: Sep 2006
Location: Skjetten,
No
Cobra Make, Engine: Unfortunataly ; none
Posts: 333
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Not Ranked
I always use abbrassive pads like the 3M nylon things. At the end of a high speed rotating thingy it works well. Soaking in thinner or aceton help.
Clean out the ring lands as well and be sure the rings move freely.
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09-23-2012, 06:04 AM
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CC Member
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Join Date: Dec 2004
Location: Kansas City,
KS
Cobra Make, Engine: jbl
Posts: 2,291
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Not Ranked
wire wheel on a grinder works very good.
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09-23-2012, 06:06 AM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
disc brake cleaner
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
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09-23-2012, 06:29 AM
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CC Member
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Join Date: Feb 2007
Location: Colorado Springs,
CO
Cobra Make, Engine: Backdraft, supercharged Coyote
Posts: 2,450
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Not Ranked
Easy Offf oven cleaner, then a wire wheel in a drill motor.
__________________
.boB "Iron Man"
NASA Rocky Mountain TTU #42
www.RacingtheExocet.com
BDR #1642 - Supercharged Coyote, 6 speed Auto
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09-23-2012, 08:17 AM
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CC Member
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Join Date: May 2006
Location: St. Louisville,
Oh
Cobra Make, Engine: A&C 67 427 cobra SB
Posts: 2,445
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Not Ranked
Bead blast with fine glass beads. You use a regular sand blaster only you use the glass beads rather than sand. If you get the right beads and the right air pressure it will not cut into the metal. Experiment on a piece of scrap first.
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09-23-2012, 10:01 AM
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CC Member
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Join Date: Mar 2006
Location: San Marcos california,
CA
Cobra Make, Engine: 1989 KCC from South Africa Right Hand Drive
Posts: 1,601
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Not Ranked
We used to break one of the rings in half. Use the sharp edge as a scraped on the piston top.The clean end of the broken ring fits perfectly in the ring groove (land) and this can be used to scrape the groove. Takes a bit of time though.........
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11-16-2012, 08:57 PM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
Wifes Diswasher and a double dose of soap?
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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11-17-2012, 08:53 AM
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CC Member
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Join Date: Nov 2007
Location: Clayton,
IN
Cobra Make, Engine: ERA 838
Posts: 1,125
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Not Ranked
Quote:
Originally Posted by Rick Parker
Wifes Diswasher and a double dose of soap?
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Rick,
I would do it that way, but the yelling would be a problem.
I'll never forget the time she came home and I had an old M1 rifle stock in the oven on one of her good cookie sheets. The heat did a nice job in getting the linseed oil out.
John |
11-17-2012, 09:02 AM
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CC Member
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Join Date: May 2001
Location: California,
Ca
Cobra Make, Engine: NAF 289 Slabside Early Comp Car with 289 Webers and all the goodies. Cancelling the efforts of several Priuses
Posts: 6,592
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Not Ranked
SHHHHHH! She'll think your helping with the dishes.
__________________
Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way
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