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Old 04-25-2019, 06:50 PM   #21
kaptain
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Re: Did castor oil save this motor


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Mid April I recovered a Quickie-500 airplane that was lost in a mid-air at pylon-one last July. It was lost in a canola field and after many attempts was never found. Well after the snow left I thought I would take a last look, and see pictures for what was found.

The plane was lying flat with the ground, seems the combine missed her. The mice ate all the wires, electronics are garbage but the Nelson engine after tear down was in great shape.

The piston was at BDC and the shutoff carb was completely shut. The inside of the engine still had signs of Castor oil in it and no rust after 9 months in a field! I thought I would have to at least change the bearings but after everything was cleaned up, and flushed I was surprised, they felt good.

I reassembled the engine and ran in a new Quickee the other day and it runs great. The plane and electronics were lost but saved a $600 engine by using good fuel and taking a second look.

Racing fuel (in this case Riches Brew) uses a mix of castor and synthetic oil, the castor is said to stand up better to heat, and seems it stands up pretty good to a harsh environment as well.

BTW: I use straight Compressor Tool-Oil in my racing engines and never have had a problem.
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Last edited by kaptain; 04-25-2019 at 06:59 PM.
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Old 04-25-2019, 07:06 PM   #22
chuebner
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Re: Oil Your Glow Engine

Wow......lucky you.
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Old 04-26-2019, 03:18 AM   #23
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Re: Did castor oil save this motor

Quote:
Originally Posted by kaptain View Post
Mid April I recovered a Quickie-500 airplane that was lost in a mid-air at pylon-one last July. It was lost in a canola field and after many attempts was never found. Well after the snow left I thought I would take a last look, and see pictures for what was found.

The plane was lying flat with the ground, seems the combine missed her. The mice ate all the wires, electronics are garbage but the Nelson engine after tear down was in great shape.

The piston was at BDC and the shutoff carb was completely shut. The inside of the engine still had signs of Castor oil in it and no rust after 9 months in a field! I thought I would have to at least change the bearings but after everything was cleaned up, and flushed I was surprised, they felt good.

I reassembled the engine and ran in a new Quickee the other day and it runs great. The plane and electronics were lost but saved a $600 engine by using good fuel and taking a second look.

Racing fuel (in this case Riches Brew) uses a mix of castor and synthetic oil, the castor is said to stand up better to heat, and seems it stands up pretty good to a harsh environment as well.

BTW: I use straight Compressor Tool-Oil in my racing engines and never have had a problem.

Nice! I love that feeling of discovery when you finally find a model that was lost for some time...
Good news on the engine too. As much as Castor gums and tarnishes an engine, it does have its benefits!
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Old 10-08-2019, 07:43 PM   #24
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Re: Oil Your Glow Engine

Just a bump to remind everyone about the importance of oiling your engine for storage. And remember, any oil is better than no oil. Cheers Floyd
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Old 10-08-2019, 08:29 PM   #25
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Re: Oil Your Glow Engine

A word of caution.After oiling up your engine and you spin the engine over with an electric starter with the glow plug installed, make sure the engine does not hydro lock on the oil. Bent/broken con rod is often the result.
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Old 10-08-2019, 10:57 PM   #26
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Re: Oil Your Glow Engine

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Originally Posted by Arceenut View Post
A word of caution.After oiling up your engine and you spin the engine over with an electric starter with the glow plug installed, make sure the engine does not hydro lock on the oil. Bent/broken con rod is often the result.
I don't put the plug back in right away. I ball up some paper towel and hold it over the plug hole as I spin over with the starter. Oil everywhere inside the engine and no chance of hydro-lock
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Old 10-09-2019, 07:00 AM   #27
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Re: Oil Your Glow Engine

Thanks for the reminder.
I have been flying nitro again this summer and have a few engines that will need "the treatment"
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Old 01-10-2020, 02:48 PM   #28
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Re: Oil Your Glow Engine

I was working on an engine yesterday and wanted to post what I found.

The engine was like new but was seized and I assumed the piston or rod was damaged. When I removed the rear cover I could see the top of the rear bearing but the balls had fell to the sides. When I tapped the crank out the balls and the cages fell into my hand. One cage was damaged and one was complete. It looks like this engine was ran with a rusted bearing. The fact that the engine had no damage inside leaves me to believe that the bearing let go at an idle speed and the damaged cage seized the bearing. I've never seen a bearing come apart like this one did. Cheers Floyd
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Old 04-13-2020, 09:19 AM   #29
msdtyu
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Re: Oil Your Glow Engine

Is the airtool oil neccesary? iv just been using atf
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Old 04-13-2020, 11:06 AM   #30
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Re: Oil Your Glow Engine

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Is the airtool oil neccesary? iv just been using atf
Just ATF will be fine, any oil is better then no oil. That was all I used for a couple of years till I found Marvel Mystery Oil. II now use a mix of 1/3 air tool oil, 1/3 ATF and 1/3 MMO. I have an MFA 46 engine that was given to me years ago, put new bearings in and have over 10 gallons of fuel through it now and bearings feel like new.
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