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HelicopterEngines Plugs Mufflers Fuel › engine cleaning
04-06-2011 05:22 PM  6 years agoPost 1
spaceman spiff

rrKey Veteran

Tucson

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I have a few old plank engines soaking in denatured alcohol trying to get rid of baked-on castor and crud on the head, doesn't seem to be working very well, is there a better solvent for that?

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04-06-2011 05:27 PM  6 years agoPost 2
flybarless

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Torrington, CT

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Brake cleaner

Just remember -- if the world didn't suck, we would fall off.

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04-06-2011 06:00 PM  6 years agoPost 3
JasonJ

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North Idaho

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You could try the simmer in antifreeze for several hours trick. Some people had had success. You just have to use a crappy pot, not a good one.

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04-06-2011 06:21 PM  6 years agoPost 4
jschenck

rrProfessor

La Vista, NE.

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Antifreeze overnight in a crockpot works very well. Make sure it's either outside or in a well ventilated garage, the fumes are not good for you. I take them all apart before starting, clean with dish soap and a tooth brush when you are done. Get some oil on everything as soon as you are done to keep surface rust from starting to form. I also take apart the carb and clean it out.

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04-06-2011 07:12 PM  6 years agoPost 5
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I had antifreeze turn my engine dark gray. I will not do that again. I was using the name-brand green Prestone AF in a crock pot on low. It somehow reacted with the metal turning it dark.

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04-06-2011 10:07 PM  6 years agoPost 6
GMPheli

rrElite Veteran

W. Bridgewater, MA USA

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Justin your crock pot was too hot even on low. And you don't want to leave it in too long, a few hrs is good. I left a motor in for 24hrs and it turned dark.

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04-06-2011 10:40 PM  6 years agoPost 7
Wedge77

rrVeteran

St. Charles Missouri USA

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transmission fluid in a crockpot overnight on low, looks like new

JR NEX E8, 12 cell
Goblin 630, 12 cell
Vibe 50N Fbl
Century E640 Fbl, 12 Cell

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04-06-2011 10:46 PM  6 years agoPost 8
Justin Stuart (RIP)

rrMaster

Plano, Texas

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I bet transmission fluid would be a good one to use.

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04-06-2011 11:36 PM  6 years agoPost 9
Eagle2bravo

rrVeteran

Out flying somewhere

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Krudd Kutter works very well.

T-rex 600n super pro , Trex 450 se, Gaui 200, Trex 500, Blade cx, . "If ya plant corn, ya get c

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04-07-2011 12:25 AM  6 years agoPost 10
N8SX

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Bowling Green, Ohio - USA

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Pinesol guys....fifty fifty with hot water overnight and it doesnt eat up rubber parts!

Team Empire Hobby/Gaui USA, Team OptiPower USA, Team Skookum

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04-07-2011 03:02 AM  6 years agoPost 11
Lamar Cooley

rrApprentice

Houma,La.,U.S.A.

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engine cleaning

I'll add another one to the "Mix":
"Dawn" Power Dissolver
Works pretty darn good. Remove all gaskets and "O" rings.
This stuff is caustic.
Use rubber gloves and a really stiff bristle brush.
Wash off with warm water.
Regards


Here when wanted.
There when needed.
Everywhere when looked for.

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04-07-2011 03:12 AM  6 years agoPost 12
Gearhead

rrMaster

Vt

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funny you guys are talking about this, the other day I just mixed-up some Antifreeze with some Transmission Fluid, we shall see, maybe tomorrow

Jim
Buzz Buzz Buzz

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04-07-2011 03:24 AM  6 years agoPost 13
dkshema

rrMaster

Cedar Rapids, IA

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No need to mix ATF with the anti-freeze. Just anti freeze, an old crockpot that will never be used for food again, and time. Set the temperature control to LOW -- you want the stuff warm, not boiling hot. Let run for a few hours, then turn off, let cool overnight. Next day the motor should be pretty much squeaky clean.

Dawn Power Dissolver also does a heck of a job in a very short time and simply rinses off. Tough spots will pop off with an old toothbrush and the Power Dissolver.

Either way, it's a good idea to strip the motors down and make sure the rubber bits and/or paper gaskets are not involved in the dip or the dissolver process.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-07-2011 09:06 PM  6 years agoPost 14
Gearhead

rrMaster

Vt

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""No need to mix ATF with the anti-freeze::

well, as I found today the 2 do not stay mixed, the ATF is lighter, so as soon as the mix gets warm the ATF comes to the surface..

Jim
Buzz Buzz Buzz

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04-07-2011 09:15 PM  6 years agoPost 15
Gearhead

rrMaster

Vt

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dkshema, one question,,

I have a Plane Engine and it's Piston has black buildup on it from a very restricted muffler,, will this Antifreeze Dip remove this buildup ??

Jim
Buzz Buzz Buzz

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04-07-2011 11:47 PM  6 years agoPost 16
Gearhead

rrMaster

Vt

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I just check my Engine and dkshema is correct about the Heat (of-course he is LOL)

all you need to do is heat the Antifreeze on high until it gets hot, maybe an hour, it depends on the Pot, mine took 1&1/2 hour, then put it on the lowest setting and go play for a few hours,,
my Plane Engine has been cooking for 5 hours now and it's Case is clean (inside and out)

I can see the Piston on the Plane Engine is a bit cleaner, but the Caster Buildup on the Exhaust side is still there
and the Buildup on the top of the Piston is still there..

Jim
Buzz Buzz Buzz

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04-08-2011 12:19 AM  6 years agoPost 17
dkshema

rrMaster

Cedar Rapids, IA

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The carbon stuff on top of the piston won't come completely off, that usually takes a bit of elbow grease. Burnt castor oil (if you're still flying a castor based or containing fuel) should come off, it's a nasty gum/varnish that forms. Carbon deposits are much more stubborn.

If I ever wanted the top of my piston all pristeen and aluminum colored, I'll go after the crown with a bit of very fine steel wool, something like #0000. Use a bit of detergent, rinse well -- especially the ring groove.

-----
Dave

* Making the World Better -- One Helicopter at a time! *

Team Heliproz

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04-08-2011 12:31 AM  6 years agoPost 18
Gearhead

rrMaster

Vt

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the February Model Aviation Mag (page 81) says to use a Mix of ATF & Acetone (heated) to remove a Stuck Ring

Jim
Buzz Buzz Buzz

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04-08-2011 12:46 AM  6 years agoPost 19
Eagle2bravo

rrVeteran

Out flying somewhere

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Dkshema,
Do you think a Scotch Bright pad would be an ok substitute for the fine steel wool?
Rob

T-rex 600n super pro , Trex 450 se, Gaui 200, Trex 500, Blade cx, . "If ya plant corn, ya get c

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04-08-2011 01:11 AM  6 years agoPost 20
jgunpilot

rrKey Veteran

Pollock, LA

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I use Demon Clean and it works well for me.

http://www.bj-model-engines.com/Dem...e_11-11-05.html

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