Cleaning Model Glow Engines - Use of Antifreeze

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danie.e
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Cleaning Model Glow Engines - Use of Antifreeze

Unread post by danie.e » Mon Aug 06, 2012 5:22 pm

Somewhere in the "Model Aircraft" section there is a topic about cleaning model engines. One person recommended that Antifreeze be used for this task.

I replied to that topic and warned that the use of Antifreeze is very dangerous due to the fact that when heated on a stove it can cause fire, and the vapours from the antifreeze is toxic.

The topic resulted in the formation of the Dangerous practices section on Avcom.

A much better, safer, and more effective method is to boil the engine in a very strong OMO solution for as long as you like. I does not discolor the engine and removes all old oil residue off the engine leaving it looking like new.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Flubber » Mon Sep 17, 2012 11:43 am

Danie,

Thanks vir die tip, dit werk soos 'n bom ......................
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by kacee » Wed Sep 19, 2012 11:53 am

Mmmm..So ek vat een van my vrou se kook potte.Leen n koppie van haar omo was poeier en maak dit aan in die pot met water en plak dit op die stoof totdat dit boil dan sit ek die engine en exhaust net so in ?
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Flubber » Thu Sep 20, 2012 8:32 am

Jy moet die Carb afhaal, maar die res kan jy net so in 'n lekker pot OMO kook!!!!

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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by kacee » Thu Sep 20, 2012 11:13 am

Flubber dit klink lekker :lol: :lol: :lol: :lol:

Dankie vir die raad julle ek gaan dit defnitief try,Dalk nie op die stoof nie ek glo nie Mammie sal dit smaak nie..Maar n CADAC Gasbraaier buite onder die boom val nie te sleg op die lippe nie... :D :D
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by clivem » Fri Sep 21, 2012 11:21 am

Flubber wrote:Jy moet die Carb afhaal, maar die res kan jy net so in 'n lekker pot OMO kook!!!!

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no - do not put everything in the omo solution! you cannot put any steel parts in there, they will corrode very quickly. you must strip the engine down completely and remove the bearings from the casing, ONLY the aluminim parts can go in the solution.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Kleinmeid123 » Thu Jan 31, 2013 1:32 pm

willemg wrote:Mmmm..So ek vat een van my vrou se kook potte.Leen n koppie van haar omo was poeier en maak dit aan in die pot met water en plak dit op die stoof totdat dit boil dan sit ek die engine en exhaust net so in ?
Ek het nou so lekker gelag. Ma is so bietjie sensitief oor my plyne. Nou, ek is lief vir my vrou en my plyntjies... Ek hanteer beide met die opperste sensitiwiteit
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Trevorn » Wed Apr 24, 2013 7:57 pm

MEK also works quite well. Leave the parts in MEK over night and clean up quite well. Just remove any plastic or rubber parts. It will dissolve them.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Mikee » Sun May 05, 2013 2:08 pm

I use Zeb and a toothbrush. Rinse with meths. Seems to work.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by ASH26V » Sun Jun 09, 2013 2:55 pm

Dudes you can wash and scrub your asses off...it will still never look perfect,
The best way to clean that motor is to get very very fine sand and sand blast it....it looks like the day you took it out the packet.
Look for them small hobby sandblasting kit...like they use to sandblast drinking glasses
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Paul.M » Wed Jun 26, 2013 1:15 am

Hi Folks,

Whenever you want to clean the metal of the model engines, do not sand blast them, but use the fine glass granules to blast.
This material doesnot damage the metal but will polish as well. The result is amazing. I use to glass-blast the carbs and other
parts of oldtimer cars and clients are very pleased with the results.
It takes some time to clean the blasted parts, specially the carburators because the should be 100% clean inside.
Check your local blast comp. to ask for the glass granules. They are available in several granule thicknesses.

Regards Paul
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Roger » Mon Sep 02, 2013 5:53 pm

I have a bearing that I cannot remove from the crank case. It is the rear one closest to the Piston. It is gummed in and I cannot get any tool in there to help remove it. What is the best way to remove before I can cook the remainder of the ally parts in omo? Also does it have to be OMO, or will any washing powder do?
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by SteveJay » Wed Sep 04, 2013 8:41 am

If you plan on replacing the bearing(s) anyway, do the OMO trick first to get rid of the gunge. (Any washing powder I guess).

Put the case in the fridge for an hour (or so). Get a flat wood block of wood ready, heat the case evenly with an external flame (not the oven if possible) - the idea is to get the case warm (bigger) while the bearing is still cold (small) - then slam the case down on the (soft) wood in the direction that will free the bearing.

It usually comes out on the first or second slam.

Good luck

PS - head Clive's warning, NO steel parts should get cooked - I have a sick looking Saito 170 to remind me of this.
PS2 - I am sure we all know this, but just in case - no need to buy OEM bearing, get better quality from your local bearing shop at a fraction of the price. Even ceramic bearings are available now.
Last edited by SteveJay on Wed Sep 04, 2013 8:52 am, edited 2 times in total.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by Roger » Wed Sep 04, 2013 8:45 am

Thanks Steve. Will give that a go.
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Re: Cleaning Model Glow Engines - Use of Antifreeze

Unread post by SteveJay » Wed Sep 04, 2013 10:02 am

I suppose if you want to salvage the bearing, remove it first. Hopefully heating the case will soften the varnish before the bearing starts to heat up?

Alternatively, cook the whole lot and get the bearing out pronto - then clean and oil it asap.

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